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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 |
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cites | cdi_FETCH-LOGICAL-a289t-1f499866415d8d94c6c448b6879b5791dce153d9e076d50b33841d6e5f4a480b3 |
container_end_page | 3629 |
container_issue | 9 |
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container_title | Macromolecules |
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creator | Boyles, David A Filipova, Tsvetanka S Bendler, John T Longbrake, Guy Reams, Josiah |
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 |
format | article |
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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. 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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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