POLYURETHANE ELASTOMERS WITH HYDROLYTIC AND THERMOOXIDATIVE STABILITY .1. POLYURETHANES WITH N-ALKYLATED POLYAMIDE SOFT BLOCKS

被引:15
作者
CHAPMAN, TM
RAKIEWICZNEMETH, DM
SWESTOCK, J
BENRASHID, R
机构
[1] Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
关键词
D O I
10.1002/pola.1990.080280614
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Segmented polyurethanes with N‐alkylated amides as soft blocks as prepared. Comparisons are made with both a poly(ester urethane) and a poly(ether urethane) with the same hard block; the poly(amide urethane) is more hydrolytically stable than the polyester containing material and demonstrates greater thermooxidative stability than that with the polyether moiety. The aliphatic poly(amide urethane)s remain transparent upon exposure to uv light. Copyright © 1990 John Wiley & Sons, Inc.
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页码:1473 / 1482
页数:10
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