Title

Synthesis Of Polyurethanes And Polyimides For Photorefractive Applications

Keywords

Photorefractive; Polyimide; Polyurethane

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)diphtalic 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 Date

3-24-2000

Publication Title

Polymer

Volume

41

Issue

13

Number of Pages

5011-5020

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/S0032-3861(99)00563-7

Socpus ID

0343570493 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0343570493

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