CHAIN CONFIGURATION OF POLY(3-HEXYLTHIOPHENE) AS REVEALED BY DETAILED X-RAY-DIFFRACTION STUDIES

被引:55
作者
MARDALEN, J
SAMUELSEN, EJ
GAUTUN, OR
CARLSEN, PH
机构
关键词
D O I
10.1016/0038-1098(91)90745-H
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Detailed diffractometer and Laue x-ray studies of stretched poly(3-hexylthiophene) films enabled us to identify several 00l reflections associated with the polymer chain direction. The chain repetition distance could then be determined for the first time, giving c = 2.7.4 angstrom = 14.8 angstrom. 7.4 angstrom is shorter than expected for a model involving "alternating up-down" monomers along the chain (7.8 angstrom), whereas the observed c value is in agreement with a new "up-up-down-down" model (14.9 angstrom). Intensity calculations assuming side chain disorder corroborate well with the new model.
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页码:337 / 339
页数:3
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