MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES

ZHANG Xinsheng; SHI Lianghe; HUANG Chaoran

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MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES

Papers | Updated：2021-06-21

- MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES
- Vol. 5, Issue 4, Pages: 353-358(1987)
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- Published：20 December 1987
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ZHANG Xinsheng, SHI Lianghe, HUANG Chaoran. MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES[J]. 1987, 5(4): 353-358.
DOI：

ZHANG Xinsheng, SHI Lianghe, HUANG Chaoran. MORE ON THE STRUCTURES OF POLYPHENYLSILSESQUIOXANES[J]. 1987, 5(4): 353-358. DOI：

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.

Abstract

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

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