C-13 CP-MAS NMR-STUDY OF COMPATIBILITY IN BLENDS OF POLY(3-OCTYL-THIOPHENE) AND POLY(PHENYLENE OXIDE)

被引：2
|
作者：
SCHANTZ, S
LJUNGQVIST, N
机构：
[1] Department of Polymer Technology, Chalmers University of Technology
来源：
SYNTHETIC METALS | 1993年 / 57卷 / 01期
关键词：
D O I：
10.1016/0379-6779(93)90463-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Blends of undoped poly(3-octyl thiophene) and poly(phenylene oxide) have been investigated using solid-state C-13 cross-polarization magic-angle spinning (CP-MAS) NMR. Proton spin-lattice relaxation times in the rotating frame (T1rho(H)) are unchanged in the blends as compared with the homopolymers. This shows that the blends are incompatible on a molecular level. The averaging of laboratory frame spin-lattice relaxation times (T1(H)) indicates that the maximum domain size is approximately 100 nm for POT-concentrations below 30%.
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页码：3483 / 3488
页数：6
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