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Synthesis and photochemical properties of high-impact styrene copolymers containing keto groups

✍ Scribed by G. Nenkov; A. Stoyanov; T. Bogdantsaliev; V. Kabaivanov

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
403 KB
Volume
20
Category
Article
ISSN
0014-3057

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✦ Synopsis

A method lor the preparation by suspension polymerization of high-impact styrene copolymers containing built-in keto groups is described. Some of the features of the process are described. Photolysis of these copolymers on irradiation with polychromatic and monochromatic light (2 = 313 and 366 nm) has been investigated. The quantum yields of cleavage of the main chain (q~) in film or solution have been shown to be concentration dependent. It has been concluded that the photoprocesses in these two-phase polymeric systems proceed independently in the polymer matrix and in the dimethylformamide insoluble fraction.

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