Wei Jiang

Publications (3)6.65 Total impact

• Article: Effect of conformational asymmetry on the self-assembly of amphiphilic diblock copolymer in selective solvent

  Wei Li, Wei Jiang
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  ABSTRACT: Three dimensional real-space self-consistent field theory is employed to study the effect of conformational asymmetry on the self-assembly of amphiphilic diblock copolymer in selective solvent. The phase diagrams in wide ranges of interaction parameters and conformational asymmetry were obtained in present study. The results indicate that the conformational asymmetry is an important factor that determines the self-assembly of amphiphilic diblock copolymer in solution. The self-assembled morphology changes from sphere to rod, then to vesicle with an increase of the degree of conformational asymmetry. We found that the entropic contribution of the core-forming block is the main reason for this transition. KeywordsConformational asymmetry-Diblock copolymer-Self-assembly-Selectivity-Self-consistent field theory
  Polymer Bulletin 04/2012; 64(8):805-815. · 1.53 Impact Factor
• Article: Effect of Solvent Molecular Size on the Self‐Assembly of Amphiphilic Diblock Copolymer in Selective Solvent

  Wei Li, Wei Jiang
  Macromolecular Theory and Simulations 09/2009; 18(7‐8):434 - 440. · 1.71 Impact Factor
• Article: Embedding magnetic nanoparticles into polysaccharide-based hydrogels for magnetically assisted bioseparation.

  Yuan-Yuan Liang, Li-Ming Zhang, Wei Jiang, Wei Li
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  ABSTRACT: Based on the preparation of biocompatible polysaccharide-based hydrogels with stimuli-responsive properties by the copolymerization of maleilated carboxymethyl chitosan with N-isopropylacrylamide, novel magnetic hybrid hydrogels were fabricated by the in situ embedding of magnetic iron oxide nanoparticles into the porous hydrogel networks. Scanning electron microscopy (SEM) and thermogravimetric (TG) analyses showed that the size, morphology, and content of the iron oxide nanoparticles formed could be modulated by controlling the amount of maleilated carboxymethyl chitosan. As confirmed by X-ray diffractometry (XRD), equilibrium swelling ratio, and differential scanning calorimetry (DSC) measurements, the embedding process did not induce a phase change of the magnetic iron oxide nanoparticles, and the resultant hybrid hydrogels could retain the pH- and temperature-responsive characteristics of their hydrogel precursors. By investigating the partition coefficients of bovine serum albumin as a model protein, this magnetic hydrogel material was found to hold a potential application in magnetically assisted bioseparation.
  ChemPhysChem 12/2007; 8(16):2367-72. · 3.41 Impact Factor