Polyurethane-polymethacrylic acid multiblock copolymer dispersions through polyurethane macroiniferters

被引：25

作者：

Kim, BK ^{[1
]}

Tharanikkarasu, K ^{[1
]}

Lee, JS ^{[1
]}

机构：

[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea

来源：

COLLOID AND POLYMER SCIENCE | 1999年 / 277卷 / 2-3期

关键词：

polyurethane dispersions; macroiniferters; iniferters; living radical polymerization; multiblock copolymers;

D O I：

10.1007/PL00013758

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polyurethane-polymethacrylic acid multiblock copolymers have been prepared from tetraphenylethane-based polyurethane macroiniferters. Aqueous dispersions of these block copolymers and their anionomers have been prepared. Anionomeric dispersions have smaller particle size and higher viscosity when compared to their corresponding block copolymeric dispersions. Particle size decreases whereas viscosity increases when the degree of neutralization is increased. Tensile strength and initial modulus are higher for films derived from anionomeric dispersions than for the corresponding block copolymeric films.

引用

页码：285 / 290

页数：6

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