The nature of the propagation sites in the anionic polymerization of methoxypolyethyleneglycol methacrylates in the presence of Li counterion has been studied through i.r. spectra of the model compounds, Li derivatives of isobutyric acid esters, (CH3)2CLiCOO(CH2CH20),CH 3 with n from 1 to 4, and of
On the nature of the active centres in the initial stages of methacrylonitrile anionic polymerization—I: Spectral studies
✍ Scribed by C. Tsvetanov; I. Panayotov
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 391 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
The active centres in the initial stage of methacrylonitrile anionic polymerization have been studied by means of electronic and i.r.-spectra as well as by use of model compounds. The attachment (-) * The ratio E,'/..,= E.c ILin cm) ~as used since the solutions had diltL'rcnl concenlralion~, and Ihc spcclra t~cl c recorded in cells of different path length.
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