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Polymer complexes—X. Polymerization of methyl methacrylate in the presence of some transition metal chlorides

✍ Scribed by M.A. Diab; A.Z. El-Sonbati; A.S. Hilali; H.M. Killa; M.M. Ghoneim

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
182 KB
Volume
26
Category
Article
ISSN
0014-3057

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✦ Synopsis

Al~traet--Polymer complexes of methyl methacrylate with some transition metal chlorides were prepared and characterized by elemental analysis, i.r. and electronic spectroscopy. The rates of polymerization of methyl methacrylate in the absence and in the presence of metal chlorides were studied. The activation energies of the polymerizations were calculated.

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The aqueous polymerization of methyl methacrylate was carried out at 40 and 50 ° in the absence and in the presence of some iron salts and complexes. It was found that the polymerization is catalysed by the iron salts but inhibited by the iron complexes as the iron is chelated in the latter cases. T