Amphiphilic diblock and ABC triblock methacrylate copolymers: synthesis and aqueous solution characterization

被引：46

作者：

Triftaridou, AI ^{[1
]}

Vamvakaki, M ^{[1
]}

Patrickios, CS ^{[1
]}

机构：

[1] Univ Cyprus, Dept Chem, CY-1678 Nicosia, Cyprus

来源：

POLYMER | 2002年 / 43卷 / 10期

基金：

英国惠康基金;

关键词：

ABC triblock copolymers; block sequence; amphiphilic polymers;

D O I：

10.1016/S0032-3861(02)00115-5

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Three isomeric, linear, equimolar, amphiphilic ABC triblock copolymers comprising methyl methacrylate (MMA, nonionic hydrophobic), 2-(dimethylamino)ethyl methacrylate, (DMAEMA, ionizable hydrophilic) and hexa(ethylene glycol) methacrylate (HEGMA, nonionic hydrophilic) units (10 units in each block) were synthesized by group transfer polymerization (GTP). These were the three block sequence isomers, ABC, ACB and BAC. The corresponding random terpolymer was also prepared. The molecular weights and compositions of all the polymers were characterized by GPC and H-1 NMR. Measurements of the hydrodynamic diameters and cloud points of the copolymers in aqueous solution suggest that the various distributions of monomer units in the four terpolymers (the three triblocks and the random) result in different supramolecular structures with different colloidal stabilities. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：2921 / 2926

页数：6

共 23 条

[1] POLY(ETHYLENE OXIDE)-POLY(PROPYLENE OXIDE)-POLY(ETHYLENE OXIDE) BLOCK-COPOLYMER SURFACTANTS IN AQUEOUS-SOLUTIONS AND AT INTERFACES - THERMODYNAMICS, STRUCTURE, DYNAMICS, AND MODELING [J].