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Phase morphology coarsening and quantitative morphological characterization of a 60/40 blend of polycarbonate of bisphenol a (pc) and poly(styrene-bco-acrylonitrile) (san)

✍ Scribed by D. Quintens; G. Groeninckx; M. Guest; L. Aerts

Publisher
Society for Plastic Engineers
Year
1990
Tongue
English
Weight
857 KB
Volume
30
Category
Article
ISSN
0032-3888

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✦ Synopsis

Abstract

A 60/40 polymer blend of polycarbonate of bisphenol A (PC) with a styrene‐co‐acrylonitrile (SAN) copolymer was prepared by melt compounding. Injection molded sheets of this, blend were annealed at 200°C as a function of time. The phase morphology of these sheets, studied using transmission and scanning electron microscopy, was found to coarsen as a function of the annealing time. Using the Chalkey procedure, the microstructure of the annealed blends was quantified. Initial tensile stress‐strain data highlight the influence of microstructure on ductility for these co‐continuous blends.

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