Synthesis Of Polyurethanes And Polyimides For Photorefractive Applications

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    Abbreviated Journal Title

    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.

    Journal 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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