Structure and Performance of Polyo(γ-benzyl L-glutamate)-graft-poly(ethylene glycol) Copolymer Membrane

被引：11
作者：
Zhu, Guo-Quan [1 ]
机构：
[1] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China
来源：
FIBERS AND POLYMERS | 2009年 / 10卷 / 04期
关键词：
Poly(gamma-benzyl L-glutamate)-graft-poly(ethylene glycol) copolymer; Structure; Performance; Membrane; Grafting ratio; ANISOTROPIC-ISOTROPIC TRANSITION; POLYPEPTIDE BLOCK-COPOLYMER; POLY(GAMMA-BENZYL L-GLUTAMATE); POLY(ETHYLENE OXIDE); SIDE-CHAINS; CONFORMATIONAL-CHANGE; GRAFT-COPOLYMERS; PHASE-BEHAVIOR; MICELLES; NANOPARTICLES;
D O I：
10.1007/s12221-009-0425-x
中图分类号：
TB3 [工程材料学]; TS1 [纺织工业、染整工业];
学科分类号：
0805 ; 080502 ; 0821 ;
摘要：
Poly(gamma-benzyl L-glutamate)-graft-poly(ethylene glycol) (PBLG-graft-PEG) copolymer was synthesized by the ester exchange reaction of PBLG homopolymer with PEG chain. Chemical structure of PBLG-graft-PEG was confirmed by nuclear magnetic resonance (NMR) spectroscopy, morphology of copolymer membrane was investigated using scanning electron microscopy (SEM), and thermal transition behavior was studied using differential scanning calorimeter (DSC). It was revealed that PBLG-graft-PEG copolymer holds different structure and performance compared with PBLG homopolymer. The introduction of PEG chains not only decreases the melting point of PBLG segments in PBLG-graft-PEG; but also changes the morphology of PBLG segments. Influence of grafting ratio on chemical and mechanical properties of PBLG-graft graft-PEG copolymer membrane was studied.
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收藏
页码：425 / 429
页数：5
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