Title

Synthesis Of Polyurethanes And Polyimides For Photorefractive Applications

Title - Alternative

Polymer

Keywords

Photorefractive; Polyimide; Polyurethane; Polymers; Polymer Science

Abstract

Well-defined multifunctional polymers, bearing charge transporting (CT) and nonlinear optical (NLO) functionality covalently attached to each repeat unit, were synthesized and characterized. High glass transition temperature (T-g) polyurethanes, comprised of alternating CT and NLO units, were synthesized from NLO functionalized diols and N,N-bis(4-isocyanatophenyl)aniline. Polyimides, exhibiting high thermal stabilities, were obtained from a fluorinated dianhydride and a multifunctional (CT and NLO) diamine. The functionalized polyimides were obtained in two ways: by formation of a brominated polyimide derivative and subsequent Heck coupling with styrene derivatives; and direct polycondensation of a fully functionalized triarylamine diamine analog with 4,4'-(hexafluoroisopropylidene)diphthalic anhydride (6-FDA). Phosphonate ester and nitro electron-withdrawing groups were utilized in the NLO moieties. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.

Publication Title

Polymer

Volume

41

Issue/Number

13

Publication Date

1-1-2000

Document Type

Article

Language

English

First Page

5011

Last Page

5020

WOS Identifier

WOS:000086181800026

ISSN

0032-3861

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