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Characterization of melt-polymerized polycarbonate: preparative fractionation, branching distribution and simulation

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Hagenaars, AC Pesce, JJ Bailly, Christian [UCL] Wolf, BA

Melt-polymerized bisphenol-A polycarbonate materials characterized by a low degree of branching were fractionated according to molecular weight by the continuous polymer fractionation (CPF) method. The distribution of two types of end-groups and in-chain salicylate moieties arising from thermal rearrangement reactions were assessed across the molecular weight distribution by analysis of the fractions. Experimentally determined branching densities of the fractions agreed well with a molecular simulation based on a random sampling polycondensation model. Both simulation and experiments showed that the branching density increases with molecular weight in the experimentally accessible range. (C) 2001 Elsevier Science Ltd. All rights reserved.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2001
Language Anglais
Journal information "Polymer" - Vol. 42, no. 18, p. 7653-7661 (2001)
Peer reviewed yes
Publisher Elsevier Sci Ltd (Oxford)
issn 0032-3861
e-issn 1873-2291
Publication status Publié
Affiliation UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
Keywords polycarbonate ; bisphenol-A ; melt polymerization
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Bibliographic reference Hagenaars, AC ; Pesce, JJ ; Bailly, Christian ; Wolf, BA. Characterization of melt-polymerized polycarbonate: preparative fractionation, branching distribution and simulation. In: Polymer, Vol. 42, no. 18, p. 7653-7661 (2001)
Permanent URL http://hdl.handle.net/2078.1/42701