Paper Title:
Two Step Synthesis of Hydroxyl Group Polyimide Based on 2,2-Bis(Amino-4-Hydroxyphenyl)hexafluoropropane
  Abstract

The feasibility of using two step procedures with thermal imidization of polyamic acid (PAA) for synthesizing hydroxyl group polyimide (PI), based on 2,2-Bis(3-amino-4-hydroxyphenyl)hexafluoropropane (Bis-AP-AF), was studied. It was found that a high molecular weight PAA could be successfully synthesized from Bis-AP-AF with 3,3',4,4'-Benzophenone tetracarboxylic dianhydride (BTDA). The optimum polycondensation reaction time on synthesizing molecular weight of the PAA was 4 hours. The PI films could be successfully prepared by thermal imidization of the PAA. The higher the inherent viscosity of the PAA is, the more beneficial for the tensile properties of the PI films. All the results indicate that two step procedures with thermal imidization of the PAA under appropriate conditions represented a promising way for preparation PI films, with a reasonable level of mechanical properties.

  Info
Periodical
Advanced Materials Research (Volumes 284-286)
Chapter
Biomaterials
Edited by
Xiaoming Sang, Pengcheng Wang, Liqun Ai, Yungang Li and Jinglong Bu
Pages
1736-1741
DOI
10.4028/www.scientific.net/AMR.284-286.1736
Citation
Y. H. Zheng, L. C. Wang, Y. Zhai, B. H. Guo, X. M. Zeng, "Two Step Synthesis of Hydroxyl Group Polyimide Based on 2,2-Bis(Amino-4-Hydroxyphenyl)hexafluoropropane", Advanced Materials Research, Vols. 284-286, pp. 1736-1741, 2011
Online since
July 2011
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Price
$32.00
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