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Ceric salt initiated polymerization of 4-vinylpyridine

โœ Scribed by M.L. Leza; G.M. Guzman

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
271 KB
Volume
27
Category
Article
ISSN
0014-3057

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โœฆ Synopsis

The polymerization of 4-vinylpyridine directly intiated by ceric ammonium nitrate has been investigated. Conversion and ceric ion consumption were studied as a function of reaction variables. Increasing the concentrations of monomer, initiator and ntiric acid each favoured the conversion; it increased with rising temperature up to a certain point but then decreased. Ceric consumption during polymerization was increased as each of the factors was increased.

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## Abstract 2,2,6,6โ€Tetramethylpiperidineโ€__N__โ€oxyl (TEMPO)โ€mediated free radical polymerization of 4โ€vinylpyridine is found to proceed in a โ€œcontrolledโ€ manner. A linear increase of molecular weight along with an increase in conversion occurs at varying temperatures. Polymerization of styrene wit