The use of glass transition data for characterizing polycarbonate-based blends

Partitioning of low melecular weight species, such as oligomers, during melt blending is shown to contribute to relative shifts in recorded glass transition temperatures for immiscible blends of bisphenol-A polycarbonate and styrene/acrylonitrile copolymers. These observations indicate the problems...

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Bibliographic Details
Published in:European polymer journal 1989, Vol.25 (9), p.985-988
Main Authors: GUEST, M. J, DALY, J. H
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Thermal and thermodynamic properties
Online Access:Get full text
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Summary:Partitioning of low melecular weight species, such as oligomers, during melt blending is shown to contribute to relative shifts in recorded glass transition temperatures for immiscible blends of bisphenol-A polycarbonate and styrene/acrylonitrile copolymers. These observations indicate the problems in drawing conclusions about miscibility between two polymers solely from shifts of "one-number" Tg values. 20 ref.--AA
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(89)90124-9