Self-Assembly of Poly(γ-benzyl L-glutamate)-block-poly(ethylene glycol) and Poly(γ-benzyl L-glutamate)-graft-poly(ethylene glycol) Blend in Ethanol

被引:0
作者
Zhu, Guo-Quan [1 ]
Wang, Fa-Gang [1 ]
Li, Guo-Chang [1 ]
Gao, Qiao-Chun [1 ]
Liu, Yu-Ying [1 ]
机构
[1] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China
关键词
Polypeptide copolymer blend; Self-assembly; Critical micelle concentration; Morphology; POLY(ETHYLENE OXIDE); POLYMERIC MICELLES; GRAFT COPOLYMER; L-GLUTAMATE); MICELLIZATION; MIXTURES;
D O I
10.14233/ajchem.2013.13517
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Poly(gamma-benzyl L-glutamate)-block-poly(ethylene glycol) (PBLG-block-PEG) and poly(gamma-benzyl L-glutamate)-graft-poly(ethylene glycol) (PBLG-graft-PEG) were synthesized by a standard N-carboxyl-gamma-benzyl-L-glutamate anhydride method and by an ester exchange reaction, respectively. The self-association behaviours of PBLG-block-PEG/PBLG-graft-PEG blend in ethanol were investigated by transmission electron-microscopy viscometry. It was showed that the polypeptide copolymer blend could self-assemble to form polymeric micelles with a core-shell structure in the shape of tree-like. Effects of the testing temperature and the weight ratio of PBLG-block-PEG to PBLG-graft-PEG on the critical micelle concentration of polypeptide copolymer blend in ethanol were studied.
引用
收藏
页码:3060 / 3062
页数:3
相关论文
共 15 条
[2]   Conformational transition of nanoparticles composed of poly(γ-benzyl L-glutamate) as the core and poly(ethylene oxide) as the shell [J].
Cho, CS ;
Nah, JW ;
Jeong, YI ;
Cheon, JB ;
Asayama, S ;
Ise, H ;
Akaike, T .
POLYMER, 1999, 40 (24) :6769-6775
[3]   SOLUBILIZATION EQUILIBRIA OF WATER IN NONAQUEOUS SOLUTIONS OF BLOCK IONOMER REVERSE MICELLES - AN NMR-STUDY [J].
GAO, ZS ;
DESJARDINS, A ;
EISENBERG, A .
MACROMOLECULES, 1992, 25 (04) :1300-1303
[4]   MICELLES BASED ON AB BLOCK COPOLYMERS OF POLY(ETHYLENE OXIDE) AND POLY(BETA-BENZYL L-ASPARTATE) [J].
KWON, G ;
NAITO, M ;
YOKOYAMA, M ;
OKANO, T ;
SAKURAI, Y ;
KATAOKA, K .
LANGMUIR, 1993, 9 (04) :945-949
[5]   Polymeric micelles formed by polypeptide graft copolymer and its mixtures with polypeptide block copolymer [J].
Li, Tao ;
Lin, Jiaping ;
Chen, Tao ;
Zhang, Suning .
POLYMER, 2006, 47 (13) :4485-4489
[6]   Scaling relations and size control of block ionomer microreactors containing different metal ions [J].
Moffitt, M ;
Eisenberg, A .
MACROMOLECULES, 1997, 30 (15) :4363-4373
[7]  
PRICE C, 1983, POLYM COMMUN, V24, P326
[8]   Self-assembly of poly(γ-benzyl L-glutamate)-graft-poly(ethylene glycol) and its mixtures with poly(γ-benzyl L-glutamate) homopolymer [J].
Tang, DM ;
Lin, JP ;
Lin, SL ;
Zhang, SN ;
Chen, T ;
Tian, XH .
MACROMOLECULAR RAPID COMMUNICATIONS, 2004, 25 (13) :1241-1246
[9]  
Xu ZS, 1998, EUR POLYM J, V34, P1499
[10]   Adsorption of poly(4-vinyl pyridine) unimers into polystyrene-block-poly(acrylic acid) micelles in ethanol due to hydrogen bonding [J].
Zhang, WQ ;
Shi, LQ ;
An, YL ;
Wu, K ;
Gao, LC ;
Liu, Z ;
Ma, RJ ;
Meng, QB ;
Zhao, CJ ;
He, BL .
MACROMOLECULES, 2004, 37 (08) :2924-2929