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.