Graft copolymerization of methyl acrylate onto polyvinyl alcohol using Ce(IV) initiator

被引:43
作者
Chowdhury, P [1 ]
Pal, CM
机构
[1] Reg Engn Coll, Dept Chem, Durgapur 713209, India
[2] Ramakrishna Mission Vidyamandir Belur Math, Dept Phys, Howrah 711202, India
关键词
D O I
10.1016/S0014-3057(99)00017-8
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effect of different reaction conditions on the grafting of methyl acrylate (MA) onto polyvinyl alcohol (PVA) using eerie ammonium sulfate (CAS) initiator has been studied. The grafting efficiency (GE) was found to be optimum at revels: MA, 0.55 mol/l; CAS, 6.32 x 10(-3) mol l; PVA, 1.0 g/l; H2SO4, 0.19 mol/l; temperature, 45 degrees C; and time, 240 min. Acid hydrolysis and infrared spectroscopy were used for the confirmation of graft copolymer formation. The X-ray diffraction pattern and thermogravimetric analysis of PVA and a representative graft copolymer were studied. A plausible mechanism of grafting has been suggested. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2207 / 2213
页数:7
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