Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties

F. W. Harris; H. L.C. Hsu; C. J. Lee; B. S. Lee; F. Arnold; S. Z.D. Cheng

doi:10.1557/proc-227-3

Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties

F. W. Harris, H. L.C. Hsu, C. J. Lee, B. S. Lee, F. Arnold, S. Z.D. Cheng

Research output: Contribution to conference › Paper › peer-review

Abstract

Several segmented, rigid-rod polyimides have been prepared that are soluble in organic solvents in their fully imidized form. The polymers were prepared from commercial dianhydrides and 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl (TFMB). Their intrinsic viscosities ranged from 1.0 to 4.9 dL/g. Tough, colorless films could be cast from m-cresol solutions at 100°C. The polymers had glass transition temperatures (Tgs) above 275°C and displayed outstanding thermal and thermo-oxidative stability. Fibers were prepared from the 3,3′,4,4′-tetracarboxybiphenyl dianhydride (BPDA) based polymers that had moduli of 130 GPa and tensile strengths of 3.2 GPa. The thermal expansion coefficients and dielectric constants of thin films (20-25 μm) of the polymers were as low as -2.40 × 10^-6 and 2.5, respectively.

Original language	English
DOIs	https://doi.org/10.1557/proc-227-3
Publication status	Published - 1991
Event	Abstracts of the 4th International Conference on Polyimides - Ellenville, NY, USA Duration: 1991 Oct 30 → 1991 Nov 1

Conference

Conference	Abstracts of the 4th International Conference on Polyimides
City	Ellenville, NY, USA
Period	91-10-30 → 91-11-01

All Science Journal Classification (ASJC) codes

Polymers and Plastics
Chemical Engineering (miscellaneous)

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10.1557/proc-227-3

Cite this

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title = "Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties",

abstract = "Several segmented, rigid-rod polyimides have been prepared that are soluble in organic solvents in their fully imidized form. The polymers were prepared from commercial dianhydrides and 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl (TFMB). Their intrinsic viscosities ranged from 1.0 to 4.9 dL/g. Tough, colorless films could be cast from m-cresol solutions at 100°C. The polymers had glass transition temperatures (Tgs) above 275°C and displayed outstanding thermal and thermo-oxidative stability. Fibers were prepared from the 3,3′,4,4′-tetracarboxybiphenyl dianhydride (BPDA) based polymers that had moduli of 130 GPa and tensile strengths of 3.2 GPa. The thermal expansion coefficients and dielectric constants of thin films (20-25 μm) of the polymers were as low as -2.40 × 10-6 and 2.5, respectively.",

author = "Harris, {F. W.} and Hsu, {H. L.C.} and Lee, {C. J.} and Lee, {B. S.} and F. Arnold and Cheng, {S. Z.D.}",

year = "1991",

doi = "10.1557/proc-227-3",

language = "English",

note = "Abstracts of the 4th International Conference on Polyimides ; Conference date: 30-10-1991 Through 01-11-1991",

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T1 - Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties

AU - Harris, F. W.

AU - Hsu, H. L.C.

AU - Lee, C. J.

AU - Lee, B. S.

AU - Arnold, F.

AU - Cheng, S. Z.D.

PY - 1991

Y1 - 1991

N2 - Several segmented, rigid-rod polyimides have been prepared that are soluble in organic solvents in their fully imidized form. The polymers were prepared from commercial dianhydrides and 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl (TFMB). Their intrinsic viscosities ranged from 1.0 to 4.9 dL/g. Tough, colorless films could be cast from m-cresol solutions at 100°C. The polymers had glass transition temperatures (Tgs) above 275°C and displayed outstanding thermal and thermo-oxidative stability. Fibers were prepared from the 3,3′,4,4′-tetracarboxybiphenyl dianhydride (BPDA) based polymers that had moduli of 130 GPa and tensile strengths of 3.2 GPa. The thermal expansion coefficients and dielectric constants of thin films (20-25 μm) of the polymers were as low as -2.40 × 10-6 and 2.5, respectively.

AB - Several segmented, rigid-rod polyimides have been prepared that are soluble in organic solvents in their fully imidized form. The polymers were prepared from commercial dianhydrides and 2,2′-bis(trifluoromethyl)-4,4′-diaminobiphenyl (TFMB). Their intrinsic viscosities ranged from 1.0 to 4.9 dL/g. Tough, colorless films could be cast from m-cresol solutions at 100°C. The polymers had glass transition temperatures (Tgs) above 275°C and displayed outstanding thermal and thermo-oxidative stability. Fibers were prepared from the 3,3′,4,4′-tetracarboxybiphenyl dianhydride (BPDA) based polymers that had moduli of 130 GPa and tensile strengths of 3.2 GPa. The thermal expansion coefficients and dielectric constants of thin films (20-25 μm) of the polymers were as low as -2.40 × 10-6 and 2.5, respectively.

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DO - 10.1557/proc-227-3

M3 - Paper

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T2 - Abstracts of the 4th International Conference on Polyimides

Y2 - 30 October 1991 through 1 November 1991

ER -

Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties

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