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Influence of molecular weight distribution and long chain branching on the glass transition temperature of polycarbonate

✍ Scribed by Z. Dobkowski

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
304 KB
Volume
18
Category
Article
ISSN
0014-3057

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✦ Synopsis

Molecular weight distribution and long chain branching were taken into account for the glass transition temperature (Tg)-molecular weight (M) relationships for bisphenol-A polycarbonate. A new form of the four-variable equation for Tg is proposed for polydisperse branched polymers. The extended equations were compared with the experimental results on TO and M averages; they were also applied for characterization of branched polymer by the combined GPC/V and DSC methods.

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