AN INFRARED DICHROISM INVESTIGATION OF SEGMENTAL ORIENTATION IN DRY AND SWOLLEN POLY(DIMETHYLSILOXANE) NETWORKS

被引：13
|
作者：
BESBES, S
BOKOBZA, L
MONNERIE, L
BAHAR, I
ERMAN, B
机构：
[1] ESPCI,PHYSICOCHIM STRUCT & MACROMOLEC LAB,10 RUE VAUQUELIN,F-75231 PARIS 05,FRANCE
[2] BOGAZICI UNIV,POLYMER RES CTR,BEBEK 80815,TURKEY
[3] BOGAZICI UNIV,SCH ENGN,BEBEK 80815,TURKEY
来源：
POLYMER | 1993年 / 34卷 / 06期
关键词：
POLY(DIMETHYLSILOXANE); NETWORKS; SEGMENTAL ORIENTATION; FOURIER TRANSFORM INFRARED MEASUREMENTS; SWOLLEN NETWORKS;
D O I：
10.1016/0032-3861(93)90769-7
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 effects of polymer concentration during network formation and deformation are investigated by infra-red dichroism measurements of segmental orientation in uniaxially strained samples. Experiments are performed on end-linked poly(dimethylsiloxane) networks. The results, consistent with the predictions of the theory of segmental orientation, show that the orientation results predominantly from intramolecular effects in response to network deformation. The contributions to orientation from trapped entanglements and from local intermolecular effects are found to be negligibly small.
引用
收藏
页码：1179 / 1182
页数：4
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