Luc Avérous

Luc Avérous
University of Strasbourg | UNISTRA · Institut de chimie et procédés pour l’énergie, l’environnement et la santé (ICPEES)

Full Professor
Prof. @Univ. of Strasbourg-ECPM (Fr). Group Leader & Head of Research Dep @ICPEES (CNRS). Head of Joint Research Lab.

About

389
Publications
115,450
Reads
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18,834
Citations
Citations since 2017
123 Research Items
11285 Citations
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Introduction
Pr. Luc Avérous is a Group (BioTeam) Leader, Head of Polymer Research Department at ICPEES (UMR CNRS) University of Strasbourg (France), Head of Joint Research Lab (Mutaxio) & former Lab Director. He is a Full Professor at ECPM (Strasbourg). Since 25 yr, his major research projects have dealt with biobased, sustainable and/or biodegradable polymers, for environmental and biomedical applications. He has edited 4 books and published > 200 papers & 40 book chapters, with about 20,000 citations.

Publications

Publications (389)
Article
Full-text available
Novel biobased NonIsocyanate PolyUrethanes (NIPU) were synthesized from dimer-based diamines and sebacic biscyclocarbonate in bulk, and without catalyst. All synthesized NIPU present biobased contents around 80 %. Biscyclocarbonates and final NIPU were characterized by FTIR and NMR spectroscopy. A specific study was conducted to determine the best...
Article
Environmental concerns continuously drive research to find alternatives to fossil-based constituents in a greener way. Industrial polyurethane foams are usually obtained from the polyaddition reaction between fossil-based polyols and polymeric 4,4’-methylene bis(phenyl isocyanate). The very recent development at the industrial scale of microalgae p...
Article
The potential of cyclic carbonates for the functionalization of lignins and condensed tannins was studied in detail. Four different cyclic carbonates, ethylene, propylene, vinyl ethylene and glycerol carbonates, were evaluated. Full conversion of the phenolic hydroxyl groups is observed within very short reaction times (less than 2 h and as low as...
Article
Full-text available
Polyurethanes (PUs) are a versatile and major polymer family, mainly produced via polyaddition between polyols and polyisocyanates. A large variety of fossil-based building blocks is commonly used to develop a wide range of macromolecular architectures with specific properties. Due to environmental concerns, legislation, rarefaction of some petrol...
Article
Tissue adhesives provide an alternative method for painless wound closure compared to sutures and clips. However, the ideal tissue adhesive does not exist yet. Biocompatibility, short curing time, limited exothermic reaction and tailored properties to the final tissue are for instance key criteria to answer. In this study, biobased two-component po...
Conference Paper
https://www.icom-cc-publications-online.org/4624/Further-Studies-on-Bio-Based-Polymers-as-Consolidants-for-Waterlogged-Archaeological-Wood-and-Non-Wood-Organics
Article
Three novel polyaspartate derivatives with antibacterial properties and low hemolytic effects are synthesized by the reaction of sodium polyaspartate (PAspNa) with different quaternary ammonium salts with a carboxylic end‐group, subsequently these are tested in vitro against different cancer and normal cell lines. 1‐(carboxypentyl) pyridinium bromi...
Article
The world has been facing a major resource crisis in the last few decades. In order to tackle such environmental issues, new solutions have to be found in order to replace fossil resources by more sustainable, biobased resources. One of the most promising biobased resources are vegetable oils, which are used as building blocks for renewable polymer...
Article
Full-text available
A new method for the synthesis of lignin-based liquid polyols was developed. Organosolv lignin was reacted with ethylene carbonate in polyethylene glycol as solvent, leading to a full conversion of the phenolic OH into primary aliphatic OH groups. These aromatic polyols are obtained in a single step, without any purification. Upon modification of t...
Article
Caffeic acid was esterified and then successfully converted with ethylene carbonate into a new potentially fully bio-based aromatic diol containing a pendant α,β-unsaturated ester. The lipase B from Candida antarctica allowed the synthesis of polyesters from this caffeic-based diol and diethyl adipate. 1,6-Hexanediol was also used as a second diol...
Article
Three novel starch derivatives with antibacterial properties are synthesized through a rather simple multistep synthesis route. In a first step, sodium periodate oxidation of the hydroxyl groups (C2 – C3) of starch yields a di‐aldehyde structure, which is used to attach N, N‐dimethylbenzylamine by Schiff base formation. Then, the amino groups of am...
Article
Full-text available
The removal of water from archaeological wooden objects for display or storage is of great importance to their long-term conservation. Any mechanical instability caused during drying can induce warping or cracking of the wood cells, leading to irreparable damage of the object. Drying of an object is commonly carried out in one of three ways: (i) ai...
Article
In the last decades, Covalent Adaptable Networks (CAN) appeared as an innovative polymer family, able to bridge the gap between thermoplastics and thermosets. CAN rely on the use of dynamic covalent chemistry applied to crosslinked polymer networks. In CAN, the covalent linkages that constitute the network are dynamic and can be reshuffled within t...
Article
The solubility of technical lignins is a complex issue that depends on many parameters, such as the lignin structure governed by the botanical origin and the extraction process. Only polar...
Article
During the last decades, thermoplastic packaging market has rapidly grown thanks to the rapid increase of global consumption, globalization and the unbeatable compromise between properties and large availability of relatively cheap commodity polymers. Recent awareness of the urgency of dealing with environmental concerns has stimulated the R&D on g...
Article
Full-text available
Organic–inorganic xerogel networks were synthesized from bacterial poly (3-hydroxybutyrate) (PHB) for potential biomedical applications. Since silane-based networks usually demonstrate increased biocompatibility and mechanical properties, siloxane groups have been added onto polyurethane (PU) architectures. In this work, a diol oligomer (oligoPHB-d...
Article
Full-text available
This article introduces the EU Horizon 2020 research project MIX-UP, "Mixed plastics biodegradation and upcycling using microbial communities". The project focuses on changing the traditional linear value chain of plastics to a sustainable, biodegradable based one. Plastic mixtures contain five of the top six fossil-based recalcitrant plastics [pol...
Article
Polyurethanes (PU) have recently emerged as promising biomaterials for tissue adhesive applications. Compared to other tissue adhesives, they offer substantial advantages such as the possibility to tailor adhesive strengths and curing times, for instance. All these properties are directly affected by the composition and final architecture. In this...
Article
The barrier performances, in terms of water vapor sorption properties, gas and water barrier performances were analyzed on different starch-based nano-biocomposites. These multiphase systems were elaborated by melt blending starch and halloysite nanotubes at different contents with different plasticizers (glycerol, sorbitol and a mix of both polyol...
Article
Full-text available
Enzymatic synthesis of aromatic biobased polyesters is a recent and rapidly expanding research field. However, the direct lipase-catalyzed synthesis of polyesters from ferulic acid has not yet been reported. In this work, various ferulic-based monomers were considered for their capability to undergo CALB-catalyzed polymerization. After conversion i...
Article
Enzymatic polymerization is a promising route for a greener synthesis of biobased polyesters. However, this approach is still often limited to aliphatic polyesters, which present limited properties such as low thermal resistance. In this context and till now, introduction of aromatic monomers into polyesters very often resulted in low molar mass ch...
Article
Full-text available
The global market for polyols was US$26.2 billion in 2019 and is expected to grow up to US$34.4 billion by 2024. Polyols are most commonly employed as the main component in the synthesis of polyurethanes, which is the sixth most important polymer family produced with a global production that reached around 22 Mt in 2019. In the interest of improvin...
Article
Development of green, efficient and profitable recycling processes for plastic material will contribute to reduce the expanding plastic pollution and microplastics accumulation in the environment. Polyurethanes (PU) are versatile polymers with a large range of chemical compositions and structures. This variability increases the complexity of PU was...
Article
Full-text available
Over 359 million tons of plastics were produced worldwide in 2018, with significant growth expected in the near future, resulting in the global challenge of end-of-life management. The recent identification of enzymes that degrade plastics previously considered non-biodegradable opens up opportunities to steer the plastic recycling industry into th...
Article
As we live in a time of heightening environmental issues, materials science is required to prepare sustainable polymers through green chemistry ideals. Vegetable oils and their fatty acid derivatives are well regarded for their use in polymer chemistry. Click chemistry has drastically affected the synthesis of vegetable oil-derived polymers over th...
Preprint
Full-text available
This article introduces the EU Horizon 2020 research project MIX-UP, “Mixed plastics biodegradation and upcycling using microbial communities”. The project focuses on the ambitious vision to change the traditional linear value chain of plastics to a sustainable, biodegradable based one. In MIX-UP, plastic mixtures containing five of the top six fos...
Article
Polyhydroxyalkanoates (PHAs) are a biodegradable and biobased family of bacterial polyesters with different architectures. Among them, the poly-3-hydroxybutyrate (PHB) is one of the most conventional and easily obtained by biotechnologies from different bioresources. However, this thermoplastic polyester known since more than 50 years presents unti...
Article
Restricted self-recovery that pursues a bone injury and the need of inexpensive and painless clinical treatments for tissue regeneration require new pathways developments to fabricate biocompatible and biodegradable scaffolding materials. For these requirements, covalent crosslinked alginate and alginate/Mg-doped hydroxyapatite (MgHAp) hydrogels ar...
Article
The polyurethanes (PU) are a very versatile family of materials mainly obtained by combinations of polyols and polyisocyanates. Based on their annual worldwide production of around 20 million tons and a global market of $50 billion (2016), PUs rank 6th among all polymers. Through their value chain, PUs involve different players: (i) the chemists pr...
Article
The overall purpose of this study was to synthesize biobased polyols to replace conventional fossil-based polyols in polyurethane foams (PUF) in a multistep approach based on green chemistry, in order to bring both improved properties and sustainability. Oleochemistry has been largely used for PUFs elaboration, but for as far as we know the use of...
Article
Polyurethanes are highly resistant materials used for building insulation or automotive seats. The polyurethane end‐of‐life issue must be addressed by the development of efficient recycling techniques. Since conventional recycling processes are not suitable for thermosets, waste management of PU foam is particularly questioning. By coupling biologi...
Chapter
For decades, polyurethanes (PUR) have mainly been synthesized for long-term applications and are therefore highly persistent in the environment. Proper waste disposal approaches, including recycling techniques, must be developed to limit the accumulation of PUR in the environment. Evaluation of enzymatic polyurethane degradation is needed for the d...
Article
Acteurs d'un développement durable et porteurs de nombreuses innovations récentes, les polymères biosourcés sont le domaine des matériaux polymères qui a l'une des plus fortes dynamiques, avec des croissances s'écrivant à deux chiffres. Ce domaine qui s'inscrit dans des attentes sociétales et environnementales est présenté ici par le biais de nombr...
Article
Nanocomposites of thermoplastic polyurethane (TPU) with cellulose nanocrystals (CNC) without and with surface treatment are obtained by melt processing. Nanocomposites are obtained with nanofiller weight content near of the theoretical percolation threshold (3.9 wt%). Visual observation of CNC agglomerates is sufficient to prove the inefficiency of...
Chapter
A booming global population and the environmental impact of concrete and steel has forced construction engineers to expand their horizons in the search for new materials for sustainable housing. A promising solution is the use of fast-growing native woods for the construction of housing and shelter, particularly in developing countries and to quick...
Article
Polyurethane foams (PUF) are generally obtained by polyaddition between polyisocyanate and polyols. In this context, biobased polyols can be obtained by oleochemistry, modifying triglycerides by epoxidation and epoxide ring-opening with...
Preprint
Full-text available
Nowadays, the use of renewable biobased carbon feedstock is highly taken into consideration because it offers the intrinsic value of a reduced carbon footprint with an improved life cycle analysis (LCA), in agreement with sustainable development. [...]
Article
Full-text available
Polyurethanes (PUs) are a major family of polymers displaying a wide spectrum of physico-chemical, mechanical and structural properties for a large range of fields. They have shown suitable for biomedical applications and are used in this domain since decades. The current variety of biomass available has extended the diversity of starting materials...
Article
Full-text available
Two organosolv lignins extracted during pilot runs of the Fabiola process were analyzed, fractionated and chemically modified with ethylene carbonate (EC) to produce building blocks suitable for polymer synthesis. Isolation of low dispersity fractions relied on the partial solubility of the lignins in organic solvents. Lignins solubility was first...
Article
Distinct bismaleimides (BMIs) of differing molar masses and chemical architectures were studied as cross-linkers of different polyurethane (PUs) backbones containing pendant furan rings to form responsive biobased networks via the Diels-Alder (DA) reaction. The pendant furan rings were introduced during PU synthesis by the inclusion of a specific d...
Article
Full-text available
Permanently crosslinked polymer networks, such as fully cured thermosets derived from fossil-based epoxies, cannot be reuse after damage and/or recycled since they cannot be reprocessed by heating or solubilization as non-crosslinked thermoplastics. As a result, they are not really sustainable materials, generating non-renewable resources consumpti...
Article
The incorporation of halloysite clay nanotubes (HNTs) into thermoplastic starch/poly(butylene adipate-co-terephthalate) (TPS/PBAT) blends has been investigated with the aim of improving the compatibility and properties of the matrix. TPS/PBAT/HNTs nano-biocomposites with different TPS/PBAT weight fractions and HNTs contents were elaborated using a...
Article
Two novel polysuccinimide (PSI) derivatives with antibacterial properties were synthesized by the reaction of polysuccinimide with different quaternary ammonium salts with an active terminal group. 4-bromobutyl-quinolinium bromide and 4-bromobutyl-benzalkonium bromide were synthesized from a quaternization reaction between 1,4-dibromobutane and a t...
Preprint
Full-text available
Over 359 million tons of plastics were produced worldwide in 2018, with significant growth expected in the near future, resulting in the global challenge of end-of-life management. The recent identification of enzymes that degrade plastics previously considered non-biodegradable opens up opportunities to steer the plastic recycling industry into th...
Article
The methylation of lignin is a key reaction for many different purposes, such as increasing the thermal stability and controlling lignin functionality for polymer applications, and increasing the yield of aromatic hydrocarbons during lignin pyrolysis. Methylation most often requires the use of toxic reagents, such as dimethyl sulfate. We developed...
Article
Full-text available
The bioproduction of high‐value chemicals such as itaconic and fumaric acids (IA and FA, respectively) from renewable resources via solid‐state fermentation (SSF) represents an alternative to the current bioprocesses of submerged fermentation using refined sugars. Both acids are excellent platform chemicals with a wide range of applications in diff...
Article
Full-text available
The methylation of lignin is a key reaction for many different purposes, such as increasing the thermal stability and controlling lignin functionality for polymer applications, and increasing the yield of aromatic hydrocarbons during lignin pyrolysis. Methylation most often requires the use of toxic reagents, such as dimethyl sulfate. We developed...
Article
Full-text available
Nowadays, polyols are basic chemicals for the synthesis of a large range of polymers, such as polyurethane foams (PUF), which are produced with several other compounds, such as polyisocyanates. During the last decades, the oleo-chemistry has developed several routes from glycerides to polyols for the polyurethanes (PU) industry to replace mainly co...
Article
Polyurethanes (PU) are a family of versatile synthetic polymers intended for diverse applications. Biological degradation of PU is a blooming research domain as it contributes to the design of eco-friendly materials sensitive to biodegradation phenomena and the development of green recycling processes. In this field, an increasing number of studies...
Chapter
The preservation of cultural heritage is of great importance worldwide and, as such, has been the focus of an increasing number of research projects in recent years. In spite of considerable efforts around the world, significant problems have arisen with the conservation of many shipwrecks. The most common issues facing conservators are structural...
Article
A new chemical architecture from oleic acid consisting of a diol structure containing pendent furan rings denoted the Furan Oligomer (FO) was synthesized and fully characterized. The FO was integrated into a linear rapeseed‐based polyurethane (PU) backbone and crosslinked via Diels‐Alder (DA) reaction using the pendent furan rings and a short polyp...
Chapter
Plastics are extremely useful materials that have transformed our society in a myriad of ways. However, the widespread use of these materials has led to a staggering amount of plastic pollution in man-made and natural environments. The biodegradation of plastics is a key factor to reduce the impact of this plastic pollution. On the one hand, organi...
Article
Various bismaleimides and trismaleimides of varying molar masses, chemical architectures and functionalities were explored as cross-linkers for furan-modified alginate chains via Diels-Alder click reactions. An environmentally friendly approach is described for the preparation of hydrogels based on naturally occurring biomacromolecules, without cat...
Article
In the present study biobased and soft thermoplastic polyurethane (TPU), obtained by polymerization from fatty acids, was used to produce TPU/ZnO nanocomposite foams by thermally induced phase separation method (TIPS). The produced foams were characterized and evaluated regarding their potential uses as wound dressing materials. The structure and m...
Article
Full-text available
Background: The oleaginous yeast Yarrowia lipolytica is an organism of choice for the tailored production of various compounds such as biofuels or biopolymers. When properly engineered, it is capable of producing medium-chain-length polyhydroxyalkanoate (mcl-PHA), a biobased and biodegradable polymer that can be used as bioplastics or biopolymers...
Article
With a global production of around 18 million tons (6th among all polymers) and a wide range of applications such as rigid and soft foams, elastomers, coatings and adhesives, Polyurethanes (PUs) are one of the major polymer family. Nevertheless, they present important environmental and health issues. Recently, new and safer Polyurethanes, called No...
Article
The present study provides antibacterial and thermal improvements of chitosan‐based systems through chemical modification with different quaternary ammonium salts using 1‐ethyl‐3‐(3‐dimethylaminopropyl) carbodiimide (EDC) as mediator. Three different ammonium salts with a carboxylic acid end group are synthesized through a quaternization reaction b...
Article
A bio-based polyimine vitrimer containing 100% renewable carbon content has been synthesised and characterised. This vitrimer material was prepared by combining a bio-based furan dialdehyde obtained from fructose with bio-based diamine and triamine prepared from fatty acids. Due to the dynamic nature of the imine reversible bonds, vitrimer properti...
Article
Full-text available
Biological recycling of polyurethanes (PU) is a huge challenge to take up in order to reduce a large part of the environmental pollution from these materials. However, enzymatic depolymerization of PU still needs to be improved to propose valuable and green solutions. The present study aims to identify efficient PU degrading enzymes among a collect...
Data
Fig. S4. Absorbance spectra of FTIR analysis for fatty acid dimer‐based TPU incubated 2 months at 30°C.
Data
Fig. S6. Comparison of absorbance FTIR spectra of the PCL‐based TPU and the PCL polyester.
Data
Fig. S1. Evaluation of the fungal growth on the PCL‐based TPU after 2 months of incubation at 30°C.
Data
Fig. S2. Evaluation of the fungal growth on the fatty acid dimer‐based TPU after 2 months of incubation at 30°C.
Data
Fig. S3. Absorbance spectra of FTIR analysis for PCL‐based TPU incubated 2 months at 30°C.
Data
Fig. S7. SEC analysis of the PCL‐based TPU incubated 2 months at 30°C with fungi.
Data
Fig. S8. SEC analysis of the fatty acid dimer‐based TPU incubated 2 months at 30°C with fungi.
Article
Functional biocomposites have been elaborated by melt‐blending plasticized starch with halloysite nanotubes for drug‐release applications. Halloysite nanotubes have been used as nanoscale containers for vanillin storage. The ATR‐IR results showed that vanillin was successfully loaded into halloysite nanotubes. The drug‐loading efficiency was approx...
Article
Wood is a complex hierarchical material. As a widely available renewable resource, it has been used throughout history to construct dwellings and transportation, tools, art and funerary objects. The desire to better understand cultural heritage and preserve it for future generations has long been a major driver in the study of wooden objects in the...
Article
Full-text available
As a highly resistant polymer family, polyurethanes (PU) are responsible for increasing environmental issues. Then, PU biodegradation is a challenging way to develop sustainable waste management processes based on biological recycling. Since the metabolic diversity of fungi is a major asset for polymer degradation, nearly thirty strains were isolat...
Article
Full-text available
Polyester and/or polythioester grafted chitosan copolymers were synthesized. For that, poly(ε-caprolactone) (PCL), poly(ε-thiocaprolactone) (PTCL), and their copolymers were first synthesized by ring opening polymerization. Copolymers with caprolactone:thiocaprolactone (CL:TCL) molar ratios of 2:1, 1:1, 1:2 were synthesized. All of the synthesized...
Article
In this study, freeze‐dried cellulose nanocrystals (CNC) from eucalyptus, redispersed in dimethylformamide, is grafted with a polyurethane‐based dimer to improve the interaction with the matrix, a biobased thermoplastic polyurethane (TPU). Dimer grafting onto CNC is confirmed by Fourier transform infrared spectroscopy. Wide‐angle X‐rays diffraction...