期刊
MATERIALS LETTERS
卷 64, 期 24, 页码 2710-2713出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.08.067
关键词
Polyimide; Ladder like; Polyphenylsilsesquioxane; Thermal properties; Mechanical properties
资金
- National High Technology Research and Development of China (863 Program) [2007AA03Z537]
- National Natural Science Foundation of China (NSFC) [51073230]
- Innovative Research Team in the University (PCSIRT) [IRT0706]
Novel polyimide (PI)/ladder like polyphenylsilsesquioxane (PPSQ) hybrid films was prepared. PI was made from poly(amide acid) of 4, 4 ''- diaminodiphenylether and pyromellitic dianhydride. PPSQ was prepared from phenyltrimethoxysilane through sol-gel process. The chemical structure of PPSQ was characterized by Fourier transform infrared and nuclear magnetic resonance. The coefficients of thermal expansion for the hybrid films decrease with the increasing content of PPSQ. The thermal and mechanical properties of the hybrid films were essentially similar to the neat PI. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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