6533b854fe1ef96bd12afc03
RESEARCH PRODUCT
Characterization of melt-polymerized polycarbonate: preparative fractionation, branching distribution and simulation
Jj PesceChristian BaillyBernhard A. WolfAc Hagenaarssubject
Bisphenol AChromatographyCondensation polymerPolymers and PlasticsChemistryOrganic ChemistryAnalytical chemistryFractionationBranching (polymer chemistry)chemistry.chemical_compoundPolymerizationvisual_artMaterials Chemistryvisual_art.visual_art_mediumMolar mass distributionPolycarbonatePolymer fractionationdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2001-08-01 | Polymer |