A study of the thermal degradation of methyl methacrylate polymers and copolymers by thermal volatilization analysis
β Scribed by I.C. McNeill
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 547 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0014-3057
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β¦ Synopsis
Polymers of methyl methacrylate, of various molecular weights and prepared by radical and anionic mechanisms, have been examined. The thermal stability has been found to be highly dependent both on the method of preparation and on the molecular weight of the polymer. Comonomers in the methyl methacrylate chain in general have a profound effect on the stability. The effects of the presence of phenyl acetylene, methyl, ethyl, n-propyl and n-butyl acrylates, styrene, and ethyl methacrylate have been studied.
π SIMILAR VOLUMES
The rates of production of volatile material from PVA, PVC and vinyl acetate-~inyl chloride copolymers, covering the entire composition range, have been compared using thermal volatilization analysis. It is found that, at each extreme of the composition range, incorporation of the co-monomer unit re
The degradation behavior of mixtures of polystyrene and poly(methy1 methacrylate) in the form of thin films cast from a solution containing both polymers has been compared with that of the individual polymers and of copolymers of the same monomer pair by means of thermal volatilization analysis (TVA