%0 Journal Article
%T IR SPECTRA OF LIQUID CRYSTALLINE POLYSILOXANES WITH CHOLESTERIC GROUP IN SIDE CHAIN<br>硅氧烷胆甾接枝聚合物液晶 PHECS 和 PHPCS 的红外光谱研究~*
%A YAN Shouke ZHOU Enle
%A <br>阎寿科
%A 周恩乐
%J 材料研究学报
%D 1989
%I 
%X Liquid crystalline(LC)polysiloxane with cholesteric group inside chain has been prepared by a polyhydrosilylation reaction of poly(hydro-genmethylsiloxane)with a terminal alkenic cholesteric group.IR spectra incrystalline,liquid-crystalline and fluid isotropic phases were studied.By ana-lyzing the temperature dependence of the spectra intensity,the effect of thecholesteric side chain on the crystalline and liquid-crystalline statcs were exam-ined.The results show that the cholesteric group plays an important role in therealization of the crystallinc and liquid-crystalline phase,and the differencebetween the crystal and the liquid-crystal is determined by the different orien-tational arrangement of the cholesteric group.
%K polymer liquid crystal
%K change of temperature
%K IR analysis<br>聚合物液晶
%K 变温
%K 红外光谱分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=251194E7827EDBA0&yid=1833A6AA51F779C1&vid=38B194292C032A66&iid=B31275AF3241DB2D&sid=C7A2B92569DF5458&eid=12AD09BCF4A6E651&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=1&reference_num=1