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Synthesis of High Aspect Ratio Bisphenols and Polycarbonates Incorporating Bisaryl Units

Theoretical arguments linking monomer geometries to polymer fracture strengths and melt flow properties provide the rationale for design of a series of isomeric, high-aspect ratio bisphenols and new polycarbonates. An efficient synthesis of these monomers in addition to an optimal triphosgenation-ba...

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Published in:Macromolecules 2005-05, Vol.38 (9), p.3622-3629
Main Authors: Boyles, David A, Filipova, Tsvetanka S, Bendler, John T, Longbrake, Guy, Reams, Josiah
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Language:English
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description Theoretical arguments linking monomer geometries to polymer fracture strengths and melt flow properties provide the rationale for design of a series of isomeric, high-aspect ratio bisphenols and new polycarbonates. An efficient synthesis of these monomers in addition to an optimal triphosgenation-based method for the synthesis of high molecular weight polycarbonates is presented. Preparation and polymerization of o-, meta-, and p-tetraaryl bisphenol A are reported, in addition to glass transition temperatures of the new polycarbonates. In accordance with expectations, the p- and m- isomers form ductile, amorphous high-heat films, while the o-isomer produces a relatively low-T g brittle glass.
doi_str_mv 10.1021/ma048616m
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source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polycondensation
Preparation, kinetics, thermodynamics, mechanism and catalysts
title Synthesis of High Aspect Ratio Bisphenols and Polycarbonates Incorporating Bisaryl Units
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