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Branching in bisphenol a polycarbonate: Gel permeation chromatography, viscometry and light scattering

✍ Scribed by R.L. Bartosiewicz; C. Booth; A. Marshall

Publisher: Elsevier Science
Year: 1974
Tongue: English
Weight: 473 KB
Volume: 10
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(74)90129-3

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✦ Synopsis

Branching in bisphenol A polycarbonate has been investigated by fractionation, gel permeation chromatography, viscometry and light scattering. The samples studied (Makrolon 3000 and 3000L) are branched, Makrolon 3000 more so than Makrolon 3000L. The variation of the branching parameters with molecular weight is suggestive of random branching. Comparison of the molecular weight distribution with that expected for random trifunctional branching suggests an average of about half a branch point per weight-average molecule in Makrolon 3000.

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