Miscibility of poly(methoxymethyl methacrylate) and poly(methylthiomethyl methacrylate) with poly(styrene-co-acrylonitrile) and poly(p-methylstyrene-co-acrylonitrile)
β Scribed by S. H. Goh; S. Y. Lee; C. L. Leong
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 427 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0021-8995
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Copolymerization of acrylonitrile (AN) with p-trimethylsilylstyrene (TMSS) was carried out at 60Β°C in bulk and in solution in the presence of 2,2Πazobisisobutyronitrile (AIBN). The reactivity ratios of AN (M 1 ) and TMSS (M 2 ) were determined to be r 1 Ο 0.068 and r 2 Ο 0.309. The effects of the AI
Isotactic, atactic, and syndiotactic poly(methyl methacrylates) (PMMAs) (designated as iPMMA, aPMMA, and sPMMA) with approximately the same molecular weight were mixed separately with poly(styrene-co-acrylonitrile) (abbreviated as PSAN) containing 25 wt % of acrylonitrile in tetrahydrofuran to make