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Issue 20, 2013
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High glass transition of organo-soluble copolyimides derived from a rigid diamine with tert-butyl-substituted triphenylpyridine moiety

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Abstract

A new diamine with a tert-buty-substituted triphenylpyridine unit was synthesized and used in the preparation of polyimides via a one-step polymerization. The polyimides are completely amorphous and exhibit good solubility in organic solvents. As a result of the presence of bulky substituents and rigid triphenylpyridine units, the final polyimide products have high glass transition temperatures (up to 365 °C) and good thermal stability with 10% weight loss temperatures in the range 538–563 °C. Triphenylpyridine units and tert-butyl groups might play a key role in improving the solubility of the polyimides while maintaining high glass transition temperatures and good thermal stability. The polyimide films had good mechanical properties.

Graphical abstract: High glass transition of organo-soluble copolyimides derived from a rigid diamine with tert-butyl-substituted triphenylpyridine moiety

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Article information


Submitted
10 Jan 2013
Accepted
25 Mar 2013
First published
27 Mar 2013

RSC Adv., 2013,3, 7271-7276
Article type
Communication

High glass transition of organo-soluble copolyimides derived from a rigid diamine with tert-butyl-substituted triphenylpyridine moiety

Z. Sun, M. Liu, L. Yi and Y. Wang, RSC Adv., 2013, 3, 7271
DOI: 10.1039/C3RA00147D

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