STRUCTURE-PROPERTY RELATIONSHIPS AND MOISTURE SENSITIVITY OF PDMS/PTMO MIXED SOFT SEGMENT URETHANE ELASTOMERS

被引：33

作者：

PHILLIPS, RA ^{[1
]}

STEVENSON, JC ^{[1
]}

NAGARAJAN, MR ^{[1
]}

COOPER, SL ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT CHEM ENGN,MADISON,WI 53706

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1988年 / B27卷 / 2-3期

关键词：

Block Copolymers--Structure - Polyurethanes--Structure - Water--Absorption;

D O I：

10.1080/00222348808245765

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The structure-property relationships of polyurethane elastomers based on 4,4′-diphenylmethane diisocyanate (MDI) and 4,4′-dicyclohexylmethane diisocyanate (HMDI) with PTMO, PDMS, and mixed PTMO/PDMS soft segments were investigated using DSC, dynamic mechanical spectroscopy, tensile testing, and SAXS. Changes in water absorption and moisture sensitivity with compositional changes were investigated through water absorption and physical property measurements. Differences in tensile properties and moisture sensitivity with varying hard and soft segment composition are interpreted in terms of the phase mixing characteristics of the various polymers studied.

引用

页码：245 / 274

页数：30

共 46 条

[1]

AITKENS RR, 1977, POLYMER, V18, P198

[2]

[Anonymous], 1975, POLYM HDB

[3] PHASE SEPARATION IN URETHANE ELASTOMERS AS JUDGED BY LOW-ANGLE X-RAY-SCATTERING .1. FUNDAMENTALS [J].