Concentration dependence of solution viscosities of rigid rod polymers

T. K. Kwei; M. Nakazawa; S. Matsuoka; M. K. Cowman; Y. Okamoto

doi:10.1021/ma9912002

Concentration dependence of solution viscosities of rigid rod polymers

T. K. Kwei, M. Nakazawa, S. Matsuoka, M. K. Cowman, Y. Okamoto

Chemical and Biomolecular Engineering

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

Abstract

A series of poly(benzoyl-1,4-phenylene)s (PBP), with different molecular weights and microstructures that are soluble in organic solvents, was synthesized. By using different catalysts, PBP-II which contains both head-to-tail and head-to-head linkages, and PBP-I in which the repeating units are arranged predominantly in a head-to-tail fashion were synthesized. The intrinsic viscosity of PBP-I in dimethylacetamide is 0.57 dL/g, and the GPC (gel permeation chromatography) molecular weight is 2.65×10⁴. The ratio of M_w/M_n from GPC data is 1.7 for PBP-II and 2.5 for PBP-I.

Original language	English (US)
Pages (from-to)	235-236
Number of pages	2
Journal	Macromolecules
Volume	33
Issue number	2
DOIs	https://doi.org/10.1021/ma9912002
State	Published - 2000

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma9912002

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title = "Concentration dependence of solution viscosities of rigid rod polymers",

abstract = "A series of poly(benzoyl-1,4-phenylene)s (PBP), with different molecular weights and microstructures that are soluble in organic solvents, was synthesized. By using different catalysts, PBP-II which contains both head-to-tail and head-to-head linkages, and PBP-I in which the repeating units are arranged predominantly in a head-to-tail fashion were synthesized. The intrinsic viscosity of PBP-I in dimethylacetamide is 0.57 dL/g, and the GPC (gel permeation chromatography) molecular weight is 2.65×104. The ratio of Mw/Mn from GPC data is 1.7 for PBP-II and 2.5 for PBP-I.",

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doi = "10.1021/ma9912002",

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T1 - Concentration dependence of solution viscosities of rigid rod polymers

AU - Kwei, T. K.

AU - Nakazawa, M.

AU - Matsuoka, S.

AU - Cowman, M. K.

AU - Okamoto, Y.

PY - 2000

Y1 - 2000

N2 - A series of poly(benzoyl-1,4-phenylene)s (PBP), with different molecular weights and microstructures that are soluble in organic solvents, was synthesized. By using different catalysts, PBP-II which contains both head-to-tail and head-to-head linkages, and PBP-I in which the repeating units are arranged predominantly in a head-to-tail fashion were synthesized. The intrinsic viscosity of PBP-I in dimethylacetamide is 0.57 dL/g, and the GPC (gel permeation chromatography) molecular weight is 2.65×104. The ratio of Mw/Mn from GPC data is 1.7 for PBP-II and 2.5 for PBP-I.

AB - A series of poly(benzoyl-1,4-phenylene)s (PBP), with different molecular weights and microstructures that are soluble in organic solvents, was synthesized. By using different catalysts, PBP-II which contains both head-to-tail and head-to-head linkages, and PBP-I in which the repeating units are arranged predominantly in a head-to-tail fashion were synthesized. The intrinsic viscosity of PBP-I in dimethylacetamide is 0.57 dL/g, and the GPC (gel permeation chromatography) molecular weight is 2.65×104. The ratio of Mw/Mn from GPC data is 1.7 for PBP-II and 2.5 for PBP-I.

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DO - 10.1021/ma9912002

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JO - Macromolecules

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Concentration dependence of solution viscosities of rigid rod polymers

Abstract

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