Synthesis of polyurethanes and polyimides for photorefractive applications

K. D. Belfield; O. Najjar; S. R. Sriram

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

Synthesis of polyurethanes and polyimides for photorefractive applications

K. D. Belfield, O. Najjar, S. R. Sriram

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

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.

Original language	English (US)
Pages (from-to)	5011-5020
Number of pages	10
Journal	Polymer
Volume	41
Issue number	13
DOIs	https://doi.org/10.1016/S0032-3861(99)00563-7
State	Published - Jun 2000
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Materials Chemistry

Keywords

Photorefractive
Polyimide
Polyurethane

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10.1016/S0032-3861(99)00563-7

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title = "Synthesis of polyurethanes and polyimides for photorefractive applications",

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.",

keywords = "Photorefractive, Polyimide, Polyurethane",

author = "Belfield, {K. D.} and O. Najjar and Sriram, {S. R.}",

note = "Funding Information: GC/MS and FT-IR instrumentation were supported by grants from the the NSF (DUE-9550885 and DUE-9650923). The authors thank Dr Andrew Tyler of Harvard University for mass spectrometry assistance. The Harvard University Mass Spectrometry Facility is supported by grants from NSF (CHE-900043) and NIH (SIO-RR06716).",

year = "2000",

month = jun,

doi = "10.1016/S0032-3861(99)00563-7",

language = "English (US)",

volume = "41",

pages = "5011--5020",

journal = "Polymer",

issn = "0032-3861",

publisher = "Elsevier B.V.",

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}

TY - JOUR

T1 - Synthesis of polyurethanes and polyimides for photorefractive applications

AU - Belfield, K. D.

AU - Najjar, O.

AU - Sriram, S. R.

N1 - Funding Information: GC/MS and FT-IR instrumentation were supported by grants from the the NSF (DUE-9550885 and DUE-9650923). The authors thank Dr Andrew Tyler of Harvard University for mass spectrometry assistance. The Harvard University Mass Spectrometry Facility is supported by grants from NSF (CHE-900043) and NIH (SIO-RR06716).

PY - 2000/6

Y1 - 2000/6

N2 - 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.

AB - 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.

KW - Photorefractive

KW - Polyimide

KW - Polyurethane

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Synthesis of polyurethanes and polyimides for photorefractive applications

Abstract

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Keywords

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