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Vinyl polymerization initiated by reducing compounds of transition metals—5. Graft copolymerization of chlorine containing polymers by vanadium(III) chloride

✍ Scribed by N. Moszner; M. Hartmann

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
342 KB
Volume
20
Category
Article
ISSN
0014-3057

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✦ Synopsis

Graft copolymerization of methyl methacrylate (MMA) on chlorine containing polymers [e.g. trichloroacetates of poly(vinyl alcohol), microerystalline cellulose or starch and chlorinated atactic polypropylene] in the presence of vanadium(IlI) chloride (VC13) was carried out in dimethylformamide at 70 °. The grafting n-butyl methacrylate or ethyl acrylate on poly(vinyl trichloroacetate) displayed high efficiency; in the first system, however, crosslinked polymer fractions were formed. The number-average molecular weight of grafted branches was determined. Chromium(II) acetate and titanium(III) chloride are less efficient initiators for polymerization of methacrylates in the presence of trichloroacetates.

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Vinyl polymerization initiated by reducing compounds of transition metals—9. Graft copolymerization of polymeric sulphoxides by molybdenum(III) chloride
✍ N. Moszner; M. Hartmann 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 247 KB

Graft copolymerizations of methyl methacrylate (MMA) on polymeric sulphoxides, e.g. poly(methyl-4-vinylbenzylsulphoxide) and poly(methyl-4-vinylphenylsulphoxide), in the presence of molybdenum(III) chloride (MoCI3), have been carried out in ethylene chloride at 60. The influences of temperature, MoC