SYNTHESIS AND STRUCTURE PROPERTY RELATIONSHIPS OF UV-CURABLE URETHANE PREPOLYMERS WITH HARD-SOFT HARD BLOCKS

被引：29

作者：

LAI, YC

BACCEI, LJ

机构：

[1] Bausch & Lomb Inc., Rochester, New York

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 1991年 / 42卷 / 07期

关键词：

D O I：

10.1002/app.1991.070420731

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

UV-curable urethane prepolymers derived from diisocyanates, rigid diols, and polypropylene glycols of different molecular weights and end-capped with 2-hydroxylethyll methacrylate were prepared by stepwise addition reactions. These prepolymers have the common structure, HEMA-hard segment-soft segment-hard segment-HEMA. As the weight ratio of soft segment to hard segment and thus the rigidity varied, the cured films from these prepolymers exhibited a wide range of mechanical and other key properties such as oxygen permeability.

引用

页码：2039 / 2044

页数：6