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Studies on Polycarbonate/Polystyrene/Polycarbonate-g-Polystyrene Blends. I. Preparation, Characterization and Properties of Polycarbonate-g-Polystyrene

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

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
285 KB
Volume
43
Category
Article
ISSN
0959-8103

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✦ Synopsis

Polycarbonate (PC)/polystyrene (PS) blend is an immiscible system. The use of copolymers as compatibilizers in blends of immiscible polymers is one approach which is being developed within the larger Ðeld of polymer blends and alloys. The methods for preparing PCÈPS copolymers are difficult and complicated. In this paper, a new method for preparing PCÈPS graft copolymer, PC-g-PS, by radiation grafting is proposed. The structure of the graft copolymer was conÐrmed by IR spectroscopy. Various factors which can be used to control the reaction have been studied. The molecular weight of the PS graft chain was determined by gel permeation chromatography after degrading the copolymer in aqueous sodium hydroxide and dichloromethane. The thermal properties of the copolymer have also been measured.

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