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Studies on polycarbonate/polystyrene/polycarbonate-g-polystyrene blends. III. Optical properties of PC/PS/PC-g-PS blends

✍ Scribed by Pu, Hongting; Yanhui, Chen; Tang, Xiaozhen; Xu, Xiangming

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
349 KB
Volume
44
Category
Article
ISSN
0959-8103

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✦ Synopsis

Polycarbonate (PC)/polystyrene (PS) blend is a typical immiscible system. It is, however, still transparent. In this paper, this irregular phenomenon is clariÐed experimentally and theoretically. A new method of obtaining birefringence-free polymers without sacriÐcing orientation in materials is proposed. This involves combining suitable amounts of PC and PS in the form of a blend. The observed drastic reduction in birefringence is the result of the compensation of positive and negative contributions to the overall birefringence.

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