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

F. W. Harris, Lien-Chung Hsu, C. J. Lee, B. S. Lee, F. Arnold, S. Z.D. Cheng

Research output: Contribution to conferencePaper

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 languageEnglish
Publication statusPublished - 1991 Oct 1
EventAbstracts of the 4th International Conference on Polyimides - Ellenville, NY, USA
Duration: 1991 Oct 301991 Nov 1

Other

OtherAbstracts of the 4th International Conference on Polyimides
CityEllenville, NY, USA
Period91-10-3091-11-01

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Polyimides
Polymers
Organic solvents
Thermal expansion
Permittivity
Tensile strength
Viscosity
Thin films
Fibers

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

Cite this

Harris, F. W., Hsu, L-C., Lee, C. J., Lee, B. S., Arnold, F., & Cheng, S. Z. D. (1991). Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties. Paper presented at Abstracts of the 4th International Conference on Polyimides, Ellenville, NY, USA, .
Harris, F. W. ; Hsu, Lien-Chung ; Lee, C. J. ; Lee, B. S. ; Arnold, F. ; Cheng, S. Z.D. / Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties. Paper presented at Abstracts of the 4th International Conference on Polyimides, Ellenville, NY, USA, .
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author = "Harris, {F. W.} and Lien-Chung Hsu and Lee, {C. J.} and Lee, {B. S.} and F. Arnold and Cheng, {S. Z.D.}",
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note = "Abstracts of the 4th International Conference on Polyimides ; Conference date: 30-10-1991 Through 01-11-1991",

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Harris, FW, Hsu, L-C, Lee, CJ, Lee, BS, Arnold, F & Cheng, SZD 1991, 'Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties' Paper presented at Abstracts of the 4th International Conference on Polyimides, Ellenville, NY, USA, 91-10-30 - 91-11-01, .

Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties. / Harris, F. W.; Hsu, Lien-Chung; Lee, C. J.; Lee, B. S.; Arnold, F.; Cheng, S. Z.D.

1991. Paper presented at Abstracts of the 4th International Conference on Polyimides, Ellenville, NY, USA, .

Research output: Contribution to conferencePaper

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

AU - Harris, F. W.

AU - Hsu, Lien-Chung

AU - Lee, C. J.

AU - Lee, B. S.

AU - Arnold, F.

AU - Cheng, S. Z.D.

PY - 1991/10/1

Y1 - 1991/10/1

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.

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Harris FW, Hsu L-C, Lee CJ, Lee BS, Arnold F, Cheng SZD. Organo-soluble, segmented rigid-rod polyimides. Synthesis and properties. 1991. Paper presented at Abstracts of the 4th International Conference on Polyimides, Ellenville, NY, USA, .