DYNAMICS AND DEFORMATION-BEHAVIOR IN NON-HYDROGEN BONDED MODEL URETHANES UNDER HEAT AND STRESS AS STUDIED BY DIELECTRIC AND INFRARED-SPECTROSCOPY

被引：8

作者：

BOESE, D

EISENBACH, CD ^{[1
]}

FISCHER, EW

HAYEN, H

NEFZGER, H

PLANERKUHNE, G

REYNOLDS, N

SPIESS, HW

机构：

[1] UNIV BAYREUTH,POSTFACH 101251,W-8580 BAYREUTH,GERMANY

[2] MAX PLANCK INST POLYMER RES,W-6500 MAINZ,GERMANY

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1991年 / 50卷

关键词：

D O I：

10.1002/masy.19910500119

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A model polyether-urethane with monodisperse N-alkyl polyurethane hard segment has been investigated by differential scanning calorimetry, dielectric spectroscopy and infrared spectroscopy. The temperature dependent changes in the enthalpic and dielectric properties have been correlated with specific molecular motions and transition processes in the hard and soft phase. The orientation of the hard and soft segments under uniaxial stress changes with the strain and mechanisms for the orientation and deformation behaviour have been proposed. Effects of the thermal history of the sample on the properties have been discussed as well.

引用

页码：191 / 202

页数：12

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