Shuguang Yang

• Donghua University

Surface coating of polymer complexes driven by electrostatic interaction represents a facile strategy for membrane modification. However, chemical stability is still a major issue for the application of such polymer coatings and the study of polymer complex‐modified membranes for ultrafiltration is less explored. In this study, positively charged q...

Living tissues span a remarkable spectrum of modulus ranging from the level of Pa to GPa in a water‐rich environment. Constructing soft and hard materials that match the mechanics of tissues and researching mechanical transition in water, are beneficial for their biological applications. Here, using polyelectrolyte complex fiber as a model system a...

The ligament, which connects bones at the joints, has both high water content and excellent mechanical properties in living organisms. However, it is still challenging to fabricate fibrous materials that possess high water content and ligament‐like mechanical characteristics simultaneously. Herein, the design and preparation of a ligament‐mimicking...

Specific aggregation structures largely influence the macro-physical performances of materials. Small changes in molecular components, conformation, crystallisation and microphase transitions can dramatically alter material properties. Here, we combine a triblock...

Polymer complex multilayers (PCMs) can be engineered into various structures with tunable properties via layer-by-layer (LBL) assembly driven by noncovalent forces. Due to their ease of preparation, capability of integrating multiple functional components, and excellent substrate compliance, biocompatible PCMs as coating materials or individual ent...

Elastomers with environmental adaption have attracted considerable attention for advanced applications in various areas. Here, we fabricate an ambient environment adaptive elastomer by assembling triblock copolymers polystyrene-b-poly(acrylic acid)-b-polystyrene (SAS) and polystyrene-b-poly(ethylene oxide)-b-polystyrene (SES). Owing to the micropha...

Complexation between polymers of different species in a common solvent is a fundamental process in various applications such as functional polymeric membrane and drug delivery, yet the understanding of energetics, phase behaviors, and kinetics of polymer complexation is rather challenging partially due to the multi-component nature of the system. I...

As mechanical devices for moving or controlling mechanisms or systems, actuators have attracted increasing attention in various fields. Compared to traditional actuators with rigid structures, soft actuators made up of stimulus-responsive soft materials are more adaptable to complex working conditions due to soft bodies and diverse control styles....

It remains intriguing whether macromolecular isomerism, along with competing molecular interactions, could be leveraged to create unconventional phase structures and generate considerable phase complexity in soft matter. Herein, we report the synthesis, assembly, and phase behaviors of a series of precisely defined regioisomeric Janus nanograins wi...

Polymer complex fibers (PCFs) are a novel kind of fiber material processed from polymer complexes that are assembled through noncovalent interactions. These can realize the synergy of functional components and miscibility on the molecular level. The dynamic character of noncovalent interactions endows PCFs with remarkable properties, such as revers...

Carboxymethyl cellulose (CMC) and chitosan (CHI) are two well-known natural polymer derivatives, as such the [email protected] complex beads fulfill many requirements for bio-related and safety-required applications. However, poor mechanical properties of [email protected] beads hinder their applications. We managed to improve the beads stability b...

The complex beads of carboxymethyl cellulose (CMC) and chitosan (CHI) that are fabricated by interfacial complexation have a core-shell structure composed of a thin skin layer and a 3D entangled internal structure, which endows the beads with adsorption possibilities toward anionic and cationic molecules via electrostatic interaction. However, the...

Rigorous thermodynamic analysis of polymer complexation is challenging due to the possible kinetically frozen state, complicated chain conformation, and slow chain relaxation. In this work, we study the complexation of poly(acrylic acid) (PAA) with poly(vinylpyrrolidone) (PVPON), poly(2-ethyl-2-oxazoline) (PEOX) and poly(ethylene oxide) (PEO) in ac...

Elastomers with environmental adaption have attracted considerable attentions for advanced applications in various areas. Here, we fabricate an ambient environment adaptive elastomer by assembling triblock copolymers polystyrene- b -poly(acrylic acid)- b -polystyrene (SAS) and polystyrene- b -poly(ethylene oxide)- b -polystyrene (SES). Owing to mic...

Inspired by the striated structure of skeletal muscle fibers, a polymeric actuator by assembling two symmetric triblock copolymers, namely, polystyrene‐b‐poly(acrylic acid)‐b‐polystyrene (SAS) and polystyrene‐b‐poly(ethylene oxide)‐b‐polystyrene (SES) is developed. Owing to the microphase separation of the triblock copolymers and hydrogen‐bonding c...

Alginate (ALG) and chitosan (CHI) are naturally occurring polymers, and present broad applications in various fields. Owing to the electrostatic interactions between the two polymers, ALG and CHI are combined to prepare fibers via diffusion controlled in-situ polyelectrolyte complexation. A map of the concentration combination of spinning and coagu...

Bendable optical diffuser is an indispensable photon management element in various flexible display devices. Interfacial hydrogen bonding complexation of poly(vinylpyrrolidone) (PVPON) and polymer complex nanoparticles (PCNP) can produce an effective optical diffuser layer on rigid quartz or glass substrate. However, the layer deposited on the flex...

Spherical beads made of naturally derived polymers can be widely used as a promising matrix in many bio-related and safety required fields. Herein, the optimal parameters for fabrication of a core-shell bead composed of carboxymethylcellulose (CMC) and chitosan (CHI) are established based on systematic investigations on working distance, solution p...

Two azobenzene compounds, Disperse Red 1 (DR1) and 4-aminoazobenzene (Aazo), were separately linked to poly(acrylic acid) (PAA) side chains to form PAA-DR1 and PAA-Aazo, which were then associated with poly(ethylene oxide) (PEO) to produce hydrogen-bonded polymer complex fibers. After UV irradiation, the initial modulus and yielding strength of PAA...

Hydrophobically modified polyhedral oligomeric silsesquioxanes (XPOSS) are linked to one end of water-soluble poly(ethylene oxide) (PEO) to synthesize giant amphiphiles (XPOSS-PEO). XPOSS-PEO exhibit an interesting surface activation capacity owing to the synergy of the soft PEO segment and hydrophobic XPOSS when they are spread on the water surfac...

The polymer complex fibers of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) were produced by inhibiting the complexation to obtain spinnable fluid and initiating the complexation in coagulation bath to make fiber formation. With sulfonic acid as coagulation solution, PVA/PAA fiber can be cross-linked at mild temperature while with hydrochl...

There is an urging need for the development of effective coating systems to avoid the rapidly growing resistant bacterial strains on medical devices surfaces that causes nosocomial infections. To this end, we studied the interpenetration of metal ions into polysaccharide thin films. Using several types of polyelectrolyte multilayer (PEM) films cons...

Fiber-based linear actuators (FLAs) are a key module in microrobots and biomimetic devices. It has been a great challenge to develop linear actuators that can balance output stress and output strain and hence provide high working density. Herein, we report the preparation and performance of a FLA system made from commercially available materials an...

While polyvinylidene fluoride (PVDF) is widely used as a commercial UF membrane material, PVDF membrane often encounters fouling problems which significantly reduce the separation performance and service life of membrane. In this work, a special fluoro-contained polymer, sulfonated poly(α,β,β-trifluorostyrene) (SPTFS), is used to improve the hydrop...

In this work, a polyelectrolyte complex (PEC) fiber of alginate (ALG) and poly(diallyldimethylammonium chloride) (PDDA) is prepared by restricting polyelectrolyte complexation with salt to fit wet spinning protocol. The ALG/PDDA PEC fiber adsorbs water from environment fast and shows a quick mechanical response to humidification. When the environme...

Recently, the growing environmental concerns and economic demands drive the need to develop effective solutions for the treatment of oily wastewater, especially for oil/water emulsions. In this work, hydroxyethyl cellulose (HEC) and poly(acrylic acid) (PAA) are selected to form a complex membrane on the surface of poly(ethylene terephthalate) (PET)...

The Chinese character shòu (寿, or longevity) can be written in more than 100 different ways, which is reminescent of the isomerism phenomena in the molecular world. Compared with small molecules, macromolecular isomerism has been largely understudied. Owing to their precise structures, giant molecules built on molecular nanoparticles provide an ide...

of main observation and conclusion A new scalable approach is reported here for producing the polyelectrolyte complex (PEC) fiber of alginate (ALG) and poly(diallyldimethylammonium chloride) (PDDA). Salt (LiBr, NaBr, or KBr) is used to restrict the complexation of negatively charged ALG and positively charged PDDA in solution to obtain spinnable fl...

Macromolecular isomerism has been an important yet largely understudied subject. Giant molecules based on molecular nanoparticles exhibit properties highly dependent on the primary structures, providing a platform for such studies. Various isomers have been designed, synthesized and characterized, including sequence‐, regio‐, and topo‐isomers. The...

The contamination of water with oil spills and organic pollutants have become a global environmental challenge which requires urgent solutions. In this work, membranes for oil-water separation are fabricated by forming a reusable and stable layer with methylcellulose (MC) and poly(acrylic acid) (PAA) on stainless-steel mesh (SSM) via a chemical bat...

Interfacial behavior of giant surfactants with precisely tethered molecular nanoparticles (MNPs) is an important topic. In this article, by the combination of hydrosilylation, esterification, and CuAAC ‘‘click’’ chemistry, poly(ethylene oxide) (PEO) chains were end-capped with particle-like aryl-trifluorovinyl ether functionalized polyhedral oligom...

The complex aerogel generated from nano-polysaccharides, chitin nanocrystals (ChiNC) and TEMPO-oxidized cellulose nanofibers (TCNF), and its derivative cationic guar gum (CGG) is successfully prepared via a facile freeze-drying method with glutaraldehyde (GA) as cross-linkers. The complexation of ChiNC, TCNF, and CGG is shown to be helpful in creat...

Elastic, repairable and conductive fibers are desirable in the newly emerging field of soft electronic and wearable devices. Here, we design a multifunctional fiber by incorporation of different components to optimize its performance. The combination of the poly(acrylic acid) (PAA) and poly(ethylene oxide) (PEO) through hydrogen bonding endows the...

In this article, we report the facile synthesis, self-assembly, and characterization of shape amphiphiles (BPOSS-PDI-X) based on isobutyl-functionalized polyhedral oligomeric silsesquioxane (BPOSS), perylene tetracarboxylic diimide (PDI), and (60)fullerene (C60) moieties. Firstly, an asymmetrically functionalized diblock shape amphiphile precursor...

Here, we report the preparation of hydrogen-bonded complex fibers of graphene oxide (GO) and polyethylene oxide (PEO) and their reduction to conductive fiber. The complexation behaviors of PEO and GO at different pH values are investigated. When pH is below 2.0, PEO and GO will form the complex which precipitates out from the solution quickly. When...

We report that variation of a single regio-configuration in molecular Janus particles leads to divergent self-assembly be-haviors where each isomer gives a distinct morphology as guided by their molecular symmetry....

In an effort to develop a membrane system with low cost and easy fabrication process for oil/water separation, cellulose nanocrystals (CNC), chitin nanocrystals (ChiNC), and cationic guar gum (CGG) are used to prepare a complex membrane on top of a poly(ethylene terephthalate) (PET) nonwoven fabric via a vacuum filtration method. The interactions a...

Polymer complex is a polymer association of different polymers with good miscibility resulting from the relatively strong intermolecular interactions or stereo match effect between polymer chains. Polymer complexes have been utilized in various fields, such as food, biomedical, cosmetic, and pharmacy. Fiber is one of the most important material for...

We report the symmetry-dictated mesophase formation and phase diagram of a series of T 8 -polyhedral oligomeric silsesquioxane (POSS) derivatives bearing perfluoroalkyl chains and hydroxyl alkyl groups. The phase structures and phase behaviors of these molecular Janus particles were studied by DSC, POM, FT-IR, and WAXD experiments. It was found tha...

Hydrogen-bonded polymer complex films with the thickness ranging from 50 nm to 2400 nm were prepared by layer-by-layer (LbL) assembly of poly(vinylpyrrolidone) (PVPON) and poly(acrylic acid) (PAA). The dewetting behavior of PVPON/PAA films under basic vapor condition was investigated. It was found that the dewetting occurred at solid-liquid interfa...

Etherification of cellulose can get a series of water soluble derivatives, which can form hydrogen-bonded polymer complex with poly(acrylic acid) (PAA). Three cellulose ethers hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC) and methyl cellulose (MC) are LbL assembled with PAA to fabricate thin films. The hydrogen bonding of the films is...

The cover picture shows an approach toward less‐trace SpyTag‐SpyCatcher ligation. A proteolytic recognition sequence has been engineered into the second loop of SpyCatcher to produce SpyCatcherDDDDK variant. The reaction between SpyTag and SpyCatcherDDDDK is highly efficient both in vivo and in vitro, producing a stable covalent complex. The comple...

of main observation and conclusion The SpyTag/SpyCatcher reaction is a powerful tool for bioconjugation, but it leaves a complex of considerable size after ligation. To facilitate removal of the catalytic fragment, proteolytic recognition sites (such as DDDDK, AVLQ, and WELQ) were directly engineered into the first or second loop of SpyCatcher at l...

Membranes for oil-water separation are fabricated by forming a reusable and stable layer with methylcellulose (MC) and poly(acrylic acid) (PAA) on stainless-steel mesh (SSM) via chemical bath deposition method. The MC/PAA membrane is then modified by trichloromethanesilane (TCMS) to obtain the hydrophobicity and oleophilicity.

Protein immobilization is critical to utilize their unique functions in diverse applications. Herein, we report that orthogonal peptide-protein chemistry enabled multilayer construction can facilitate the incorporation of various folded structural domains, including calmodulin in different states, affibody and dihydrofolate reductase (DHFR). An ext...

Poly(acrylic acid) was partially grafted with dopamine (PAA-dopa), and then layer-by-layer (LbL) assembled with poly(vinylpyrrolidone) (PVPON) to prepare hydrogen-bonded (PVPON/PAA-dopa)n film. Polydopamine (PDA) was deposited on (PVPON/PAA-dopa)n film with the presence of oxidant, and hence the whole (PVPON/PAA-dopa)nPDA film was cross-linked. (PV...

We report the design, synthesis and self‐assembly of a series of tandem triblock shape amphiphile regio‐isomers composed of one rod‐like fluorinated‐POSS (FPOSS) cage tethered with two spherical tert‐butyl‐POSS (tBPOSS) cages in para‐, meta‐, and ortho‐configurations. Precision syntheses are achieved via sequential"click" reactions and the compound...

Polyamide 6 (PA 6) melts and dissolves in super-heated water when T > 160°C. Commercial PA 6 films were treated in super-heated water at 140 °C < T < 160°C, i.e. below melting. Morphology, thermal behavior, mechanical properties, oxygen permeability and transparency of the film before and after hydrothermal treatment are investigated. After hydroth...

Poly(vinylpyrrolidone) (PVPON) and poly(acrylic acid) (PAA) were layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. A series of simple experiments were designed to investigate polymer chain diffusion and exchange behaviors of hydrogen-bonded PVPON/PAA film. PAA was labeled with fluorescence dye, fluorescein amine (FAM)....

Complex capsules were fabricated by combining the polymerization of dopamine with hydrogen-bonding layer-by-layer assembly (LbL) of dopamine-modified poly(acrylic acid) (PAA-dopa) and poly(vinylpyrrolidone) (PVPON). PDA(PAA-dopa/PVPON)n shell was cross-linked by dismutation reaction among catechol groups of polydopamine (PDA) and PAA-dopa. During L...

Core-shell nanofibers were prepared by coaxial electrospinning technology, with poly(ethylene oxide) (PEO) as the core while poly(acrylic acid) (PAA) as the shell. PEO and PAA can form polymer complexes based on hydrogen bonding. In order to avoid forming strong hydrogen bonding complexes at nozzle and blocking spinning process, a polar aprotic sol...

Shape has been increasingly recognized as an important factor for self-assembly. In this paper, a series of shape amphiphiles have been built by linking polyhedral oligomeric silsesquioxane (POSS) and a dendron via linkers of different lengths. Three conjugates of octahedral silsesquioxanes (T8-POSS) and dendron are designed and synthesized and are...

This article reports a comparative study on the synthesis, self-assembly, and photophysical properties of perylene diimides (PDIs) symmetrically tethered with long alkyl chains or polyhedral oligomeric silsesquioxanes (POSS) at the imide position and/or bromo substitutions at 1,7-positions of the bay area. This series of samples include dodecyl–PDI...

Carboxymethylcellulose (CMC), quaternized cellulose (QC) and lanthanide (Ln) ion ternary complex thin film was fabricated by hierarchical assembly process. CMC is a weak anionic polyelectrolyte while QC is a cationic polyelectrolyte. Strictly controlling pH value and molar ratio, CMC and Ln ion were prepared into polymer-metal complex nano-particle...

This article reports the enhanced photoluminescent properties observed in the crystals of a cube-plane-cube shape amphiphile composed of perylene diimide (PDI) tethered with polyhedral oligomeric silsesquioxanes (POSS) at the imide position via either rigid or flexible linkages (POSS-PDI-POSS). The fluorescence quantum yields (Φf) of the conjugates...

A nano-composite film with reversible small molecules adsorption behavior was fabricated via layer-by-layer (LbL) assembly of boehmite nano-particles and weak polyelectrolyte poly(acrylic acid) (PAA). Both electrostatic force and hydrogen bonding interaction were involved to fabricate the nano-composite thin film. Boehmite/PAA nano-composite thin f...

Hydrothermal processing of polyamide 6 (PA6) with the presence of lanthanum chloride (LaCl3) was studied in the temperature region from 160 °C to 250 °C. PA6 will be dissolved in the superheated water when temperature is above 160 °C. And as PA6 is dissolved, hydrolysis will happen, which makes PA6 chains degrade. By adding LaCl3 in the hydrotherma...

Two cellulose derivatives, quaternized cellulose (QC) and carboxymethyl cellulose (CMC), were layer-by-layer (LbL) assembled to prepare a thin film. QC was also LbL assembled with two synthetic polyelectrolytes, poly(acrylic acid) (PAA) and poly(styrene sulfonate) (PSS), separately. The anti-fogging and anti-frosting properties of the assembled fil...

Poly(acrylic acid) (PAA) and lanthanide (Ln) ions, such as Ce(3+), Eu(3+), and Tb(3+), were prepared as dispersed complex colloidal particles through three different protocols with rigorous control of the pH value and mixing ratio. The negatively charged PAA-Ln complex particles were layer-by-layer (LbL) assembled with positively charged poly(diall...

The dissolution, crystallization and hydrolysis behaviors of polyamide 6 (PA 6) in superheated water (140 °C ≤ T H ≤ 200 °C) are investigated. The hydrothermal processing of PA 6 can be divided into four regions: (I) T H < 140 °C, (II) 140 °C ≤ T H ≤ 155 °C, (III) 155 °C < T H < 160 °C and (IV) T H ≥ 160 °C. Below 140 °C, the hydrothermal processin...

The alumina sol doped with rhodamine B (RB) was concentrated to different degree and then dip-coated to prepare thin film. Dimerization of RB happens in the concentrated sol and the dip-coated thin film. As the sol concentrated, H-dimers are presented whereas in the dip-coated film J-dimers are displayed. When the dip-coated film is exposed to high...

The hydrogen-bonded films were prepared via layer-by-layer assembly of poly (vinylpyrrolidone) (PVPON, hydrogen bond acceptors) and poly (acrylic acid) (PAA, hydrogen bond donors). UV-Visible spectra, FTIR spectra and AFM were used to investigate the hydrogen bond detachment and the film disintegration in acidic solvents :formic acid, trifluoroacet...

The composition and properties of silicone–hollow microsphere composites were studied in view of establishing a new type of maxillofacial prosthesis material. Two types of microspheres were used in different concentrations and were well dispersed in the silicone matrix. The mechanical properties of the composites were evaluated. Expancel hollow mic...

Dopamine-modified poly(acrylic acid) (PAA-dopa) and poly(vinylpyrrolidone) (PVPON) was layer-by-layer (LbL) assembled to prepare thin film based on hydrogen bonding. Carboxylic group of acrylic acid and phenolic hydroxyl group of dopamine can both act as hydrogen bond donors. The critical assembly and the critical disintegration pH values of PVPON/...

The asymmetric amphiphilic block copolymer polystyrene962-block-poly(ethylene oxide)227 (PS962-b-PEO227) canforms micelles with N, N-dimethylformamide (DMF) as co-solvent and water as selected solvent, and when the water content of the mixed solvent is higher than 4.5 wt%, the vesicle will be dominated. This work finds that once vesicles are formed...

The hydrogen-bonded thin film of poly(vinylpyrrolidone) (PVPON)/poly(acrylic acid) (PAA) was prepared via layer-by-layer (LbL) assembly. A serial of solvents has been selected to study the formation and disintegration of the thin film. The film could be produced in acidic water and alcohols but could not be fabricated in some polar aprotic solvents...

The oppositely charged cellulose derivatives, quaternized cellulose (QC) and carboxymethyl cellulose (CMC), were alternately deposited on silicon or quartz substrates by interfacial complexation, i.e. layer-by-layer (LbL) assembly, to prepare thin films. The effects of pH value, ionic strength and temperature on thin-film growth and morphology were...

The hydrogen-bonded poly(vinylpyrrolidone)/poly(acrylic acid) (PVPON/PAA) thin films were prepared by the step-wise interfacial complexation, i.e. layer-by-layer assembly process. Rhodamine B (RB), was utilized as mode compounds to investigate the pH and the temperature effect on the loading and releasing behavior of the hydrogen-bonded thin film....

Cellulose nanocrystals (CNC) with 3-4 nm in diameter and 100-300 nm long were obtained by sulphuric acid hydrolysis from cellulose pulp. CNC were deposited by layer-by-layer (LBL) assembly with cationic polyelectrolyte, poly(allylamine hydrochloride) (PAH) and poly(diallyldimethylammonium chloride) (PDDA), to prepare thin films. PDDA is a fully cha...

Owing to their excellent viscoelasticity and easy processing properties, polymer materials have a huge potential in sound absorption. Moreover, micro-/nanofibres can be produced by electrospinning technology with many special advantages, such as high specific surface area. In this paper, electrospun fibres based on polyacrylonitrile (PAN), thermopl...

In this work, an interesting morphological evolution from single nanosheet to nanosheet assemblies and flower-like nanostructures boehmite (gamma-A100H) on quartz surface was discovered via a facile hydrothermal synthetic method. The effects of hydrothermal temperature and time on the morphology and phase of the flower-like boehmite films were stud...

Regenerated cellulose hydrogel membranes were prepared by introducing pre-gelation of the solution into the typical preparation procedure of immersion precipitation phase inversion of cellulose/NaOH/urea aqueous solution.The influences of the pre-gelation temperature,the sulphuric acid concentration and temperature of the coagulation bath on the st...

A new approach for the fabrication of γ-AlOOH nanoflake films has been developed. The nanoflakes were successfully formed on a glass substrate via a simple, low temperature, and seed-assisted hydrothermal technique. A large amount of γ-AlOOH nanoflakes with various thicknesses interlaced together, resulting in a nest-like layer of film with their s...

Polymer complexes can form in the bulk and at interfaces. Polymer complex formation in the bulk has been studied for a long time. The recently developed layer-by-layer assembly technique well realizes polymer complexation at interfaces. The layer-by-layer assembly of polymers based on Coulomb forces or hydrogen bonding is a repeated complexation pr...

The well-defined block polyampholyte poly(acrylic acid)-b-poly(2-dimethylamino)ethyl methacrylate (PAA-b-PDMAEMA) was synthesized by sequential atom transfer radical polymerization (ATRP) using protected group chemisty. The block polyampholyte exhibited so-called “schizophrenic” micellization behavior at different pH values. The PAA-core micelles,...

Fiber is the complex system consisting of diverse microscopic structures with the complicated changing law. The formation of artificial fibers is the multi-component, nonequilibrium and nonlinear process. While only static structure information of fibers can be obtained by using the traditional X-ray measurement technique. In order to take a deep l...

The hydrogen bonded polymer complex bulk and thin film was prepared by solution mixing and layer-by-layer assembly, respectively. Poly(vinylpyrrolidone) (PVPON) and poly(ethylene oxide) (PEO) were hydrogen bonding acceptor polymers while poly(acrylic acid) (PAA) and poly(methacrylic acid) (PMAA) were hydrogen bonding donor polymers. The detachment...

An ideal material for maxillofacial prostheses has not been found. We created a novel material: silicone elastomer filled with hollow microspheres and characterized its biomechanical properties. Expancel hollow microspheres were mixed with MDX4-4210 silicone elastomer using Q7-9180 silicone fluid as diluent. The volume fractions of microspheres wer...

Ceramic hollow nanofibers possess unique one-dimensional tubular nanostructure, which have potential application prospects in the fields of microelectronics, catalysts, gas sensors and photoelectric transducers. The research progress on ceramic hollow nanofibers prepared by electrospinning is reviewed. The tendency of studies on fabricating ceramic...

Morphology transformation of polystyrene-block-poly(ethylene oxide) (PS-b-PEO) vesicle on solid surface induced by vapor annealing was investigated. The PS-b-PEO diblock copolymer vesicles, prepared by dissolving in a co-solvent and adding a selective solvent, were transferred to silicon wafer surface by spin cast and then incubated in three differ...

Hybrid mullite sol was synthesized from an aqueous solution of aluminum nitrate (AN), aluminum isopropoxide (AIP) and tetraethylorthosilicate (TEOS), doped with boehmite sol with different ratios. Pressureless sintering of the xerogel was carried out at different temperatures in the presence of boehmite doping. The xerogel and sintered powder were...

The 1D chain red luminescent europium coordination polymer: {[Eu2L6(DMF)(H2O)]·2DMF·H2O}n (I) (L = 4-chloro-cinnamic acid anion, C9H6ClO2–, DMF = N, N-dimethylformamide) was synthesized by the reaction of Eu(OH)3 and 4-chloro-cinnamic acid ligand. The structure of the coordination polymer was determined by single-crystal X-ray diffraction analysis....