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Preparation and degradation of copolymers of methyl methacrylate with alkali metal methacrylates—III. Quantitative studies of products of degradation to 500°

✍ Scribed by A. Hamoudi; I.C. McNeill

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
367 KB
Volume
14
Category
Article
ISSN
0014-3057

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✦ Synopsis

Degradations have been carried out under programmed heating conditions to 500 i~1 vacuo for the three copolymer systems based upon methyl methacrylate with lithium, sodium and potassium methacrylate respectively. Products have been analyzed quantitatively and the mode of variation in the yields of the principal degradation products with copolymer composition has been established. As the salt content increases, methyl methacrylate monomer production declines and the amount of solid residue increases, in both cases non-linearly. Methanol and carbon dioxide productions however, pass through maxima in the intermediate composition range. The relationships between these product yields and copolymer structure and degradation mechanism are discussed.

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