Synthesis and Properties of Non-reactive End-capped 6F-BDAF Polyimides

Autor:	D. A. Scola, J. P. Pinto, R. A. Pike, C. M. Brunette, J. H. Vontell
Rok vydání:	1989
Předmět:	Phthalic anhydride Materials science Polymers and Plastics Organic Chemistry Inherent viscosity chemistry.chemical_compound Aniline chemistry Polymer chemistry Ultimate tensile strength Materials Chemistry Amine gas treating Thermal stability Composite material Glass transition Polyimide
Zdroj:	High Performance Polymers. 1:17-30
ISSN:	1361-6412 0954-0083
DOI:	10.1177/095400838900100102
Popis:	The concept of stabilizing the reactive end-groups in conventional polyimides has been investigated in a novel system. The polyimide investigated was synthesized from 4, 4′-hexafluoroisopropylidenebis (phthalic anhydride) (6F) and 2, 2′-bis[4-(4-aminophenoxyphenyl)] hexafluoro-propane (4-BDAF). The reactive anhydride end-capped and amine end-capped polyimides were imidized and further reacted with several end-capping agents consisting of n-hexylamine, aniline, m-anisidine, phthalic anhydride and p-phenoxyphthalic anhydride to yield non-reactive end-capped polyimides. A comparison of the properties such as inherent viscosity, molecular weight, glass transition temperature, thermal stability, tensile, fracture toughness and complex viscosity of these non-reactive end-capped polyimides with the reactive end-capped polyimides will be presented.
Databáze:	OpenAIRE
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