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MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES

MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES

作     者:张心胜 施良和 黄超然 ZHANG Xinsheng SHI Lianghe HUANG Chaoran (Institute of Chemistry, Academia Sinica, Beijing)

作者机构:Institute of Chemistry Academia Sinica Beijing Beijing To whom correspondence should be addressed 

出 版 物:《Chinese Journal of Polymer Science》 (高分子科学(英文版))

年 卷 期:1987年第5卷第4期

页      面:353-358页

核心收录:

学科分类:07[理学] 0703[理学-化学] 

主  题:Polyphenylsilsesquioxanes X-ray diffraction patterns Fluorescence emission spectroscopy Scanning electron microscopy 

摘      要:The steric tacticity of polyphenylsilsesquioxanes is discussed based on both structure transformation consideration and the results of calculations, X-ray diffraction patterns, fluorescence emission spectroscopy, and scanning electron microscopy. All of the results show that cis-isotactic conformation is the most probable one for ladderlike polymer polyphenylsilsesquioxane though other conformations such as cissyndiotactic may also be present in the macromolecules depending upon the preparation conditions.

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