In:
High Performance Polymers, SAGE Publications, Vol. 34, No. 2 ( 2022-03), p. 197-208
Abstract:
To prepare soluble polyimides with high temperature resistance, two new diamine monomers, namely, 2,2 ′ -(4,4 ′ -oxybisphenylene)-bis(1-phenyl-5-aminobenzimidazole) (5a), and 2,2 ′ -(4,4 ′ -hexafluoroisopropylidene)-bis(1-phenyl-5- aminobenzimidazole) (5b), were synthesized and exploited to prepare three series of poly(benzimidazole imides)s (PBIIs) by a conventional two-stage synthesis. The resulting PI films were flexible and tough, possessing high glass-transition temperatures (T g s = 311°C–390°C), improved optical transparency, and excellent solubility. Moreover, the effect of different configuration on performance was revealed, and these data provided a feasible method to enhance both T g and solubility of PIs by incorporating N-phenyl benzimidazole and corresponding functional moieties.
Type of Medium:
Online Resource
ISSN:
0954-0083
,
1361-6412
DOI:
10.1177/09540083211036326
Language:
English
Publisher:
SAGE Publications
Publication Date:
2022
detail.hit.zdb_id:
1014244-7
detail.hit.zdb_id:
1483713-4
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