1H-NMR study of interactions in the systems methyl methacrylate-dimethylformamide and methyl methacrylate-poly(methyl methacrylate-dimethylformamide
✍ Scribed by J. Spěváček; B. Schneider; M. Mihailov; S. Dirlikov
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 438 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0014-3057
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Unusual assignments have been observed for the 1H-NMR of alkoxy groups in syndiotactic methyl methacrylate-methacrylic acid (MMA-MAA) copolymers and methyl methacrylate-diphenylmethyl methacrylate (MMA-DPMMA) copolymers. Thereby, the alkoxy groups --OCH3 and --OCH < show a degenerate pentad assignme
Copolymerizations of methyl methacrylate with the Li, Na and K salts of methacrylic acid have been studied in methanol solution at 60 ° . Reactivity ratios have been calculated by the methods due to Mayo and Lewis, Fineman and Ross and Peckham. The rate of copolymerization decreases as the size of t