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Chin J Mater Res  2009, Vol. 23 Issue (5): 472-477    DOI:
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Study on morphology of polyimide/talc composite films prepared by in-situ polymerization
WU Min; ZHU Rongqi; SHENG; Zhaobi; GU Yi
TB324
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WU Min ZHU Rongqi SHENG Zhaobi GU Yi. Study on morphology of polyimide/talc composite films prepared by in-situ polymerization. Chin J Mater Res, 2009, 23(5): 472-477.

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Abstract  

A series of polyimide/talc (PI/talc) composite films with different contents of talc were prepared via thermal imidization of in-situ  polymerized poly(amic acid)/talc (PAA/talc) solutions based on pyromellitic anhydride (PMDA), 4,4 -oxydianiline (ODA) and talc. The results confirmed that PAA macromolecular chains were induced to form silk-like ordered structure, and as a result of either the elevated
imidization temperature or the increasing contents of talc, the texture become more and more obviously, yielding staggered network texture. The hydrogen bonding formed between the edges of talc and the active hydrogen of carboxyl groups and secondary amines in PAA macromolecular chains. The macromolecular chains could align orderly around the edge surfaces of talc and form the ordered structure due to the hydrogen bonding and the effect of internal stress.

Received:  08 January 2009     
ZTFLH: 

TB324

 
Fund: 

Supported by National Natural Science Foundation of China No.50433010.

URL: 

https://www.cjmr.org/EN/     OR     https://www.cjmr.org/EN/Y2009/V23/I5/472

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