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Graft copolymerization of 2-hydroxyethyl methacrylate and methyl methacrylate onto hide powder

✍ Scribed by S. Amudeswari; C. Rami Reddy; K. Thomas Joseph

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

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✦ Synopsis

Graft copolymerization of 2-hydroxyethyl methacrylate(HEMA) and mixtures of HEMA with methyl methacrylate (MMA) onto hide powder was attempted using ceric ammonium nitrate as initiator, with a view to optimize the conditions for graft copolymerization. Percent grafting and grafting efficiency were calculated for various variables such as monomer concentration, initator concentration and mole ratio of HEMA to MMA. R0, Rg and R h (rates of polymerization, grafting and homopolymerization respectively) were also evaluated. It was observed that Rp increased linearly with increasing concentration of MMA except at very low concentrations of the monomer. An explanation is given for the effect of variables on extent of grafting and grafting efficiency.

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