ORIENTATION OF FREE POLYMER-CHAINS DISSOLVED IN A STRAINED ELASTOMER - A DEUTERIUM MAGNETIC-RESONANCE STUDY

被引：49

作者：

DELOCHE, B ^{[1
]}

DUBAULT, A ^{[1
]}

HERZ, J ^{[1
]}

LAPP, A ^{[1
]}

机构：

[1] CENS,LAB LEON BRILLOUIN,F-91191 GIF SUR YVETTE,FRANCE

来源：

EUROPHYSICS LETTERS | 1986年 / 1卷 / 12期

关键词：

DEUTERIUM - ELASTOMERS - Strain - NUCLEAR MAGNETIC RESONANCE - RUBBER - STRESSES;

D O I：

10.1209/0295-5075/1/12/004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The H**2-NMR technique is used to monitor the orientational behaviour of short, deuterated polydimethylsiloxane (PDMS) chains dissolved in an unlabelled silicone rubber matrix. When the host matrix is uniaxially stretched, an orientational order is induced at the segmental level of the PDMS probe chain (M//n equals 10. 500). This stress-induced orientation of the probe chain demonstrates that short-range orientational correlations take place in the deformed network. A comparison with previous results obtained on cross-linked chains suggests that these interchain effects may be the dominant contribution to the segmental orientation of the effectively elastic chains.

引用

页码：629 / 635

页数：7

共 23 条

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