Synthesis and characterization of linear diblock and triblock copolymers of 2-vinyl pyridine and ethylene oxide

被引：22

作者：

Fragouli, PG ^{[1
]}

Iatrou, H ^{[1
]}

Hadjichristidis, N ^{[1
]}

机构：

[1] Univ Athens, Dept Chem, Athens 15771, Greece

来源：

POLYMER | 2002年 / 43卷 / 25期

关键词：

benzylpotassium; sequential anionic polymerization; P2VP-b-PEO-b-P2VP;

D O I：

10.1016/S0032-3861(02)00455-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

This work describes a synthesis of linear diblock and triblock copolymers of 2-vinyl pyridine (2VP) and ethylene oxide (EO). The overall synthetic approach involved polymerization of 2VP, followed by polymerization with EO. Neutralization of the reactive end-groups of the living diblock P2VP-b-PEO(-)K(+) produced the diblock copolymer P2VP-b-PEO. Reaction with dibromoxylene in the presence of CsI led to the triblock copolymer, P2VP-b-PEO-b-P2VP. The triblock copolymers were separated by fractionation at 40 degreesC. Copolymers were characterized by size exclusion chromatography, light scattering and nuclear magnetic resonance spectroscopy. Characterization showed that the materials have high molecular and compositional homogeneity. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：7141 / 7144

页数：4

共 20 条

[1]

SELF-AGGREGATION AND PHASE-BEHAVIOR OF POLY(ETHYLENE OXIDE) POLY(PROPYLENE OXIDE) POLY(ETHYLENE OXIDE) BLOCK-COPOLYMERS IN AQUEOUS-SOLUTION [J].