AZOBISISOBUTYRONITRILE-INITIATED GRAFT-COPOLYMERIZATION OF METHYL-METHACRYLATE ONTO POLY(ETHYLENE-TEREPHTHALATE) FIBERS

被引:45
|
作者
SACAK, M [1 ]
BASTUG, N [1 ]
TALU, M [1 ]
机构
[1] GAZI UNIV,FAC SCI & ARTS,DEPT CHEM,ANKARA 06500,TURKEY
关键词
D O I
10.1002/app.1993.070500702
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In this study, the grafting of methyl methacrylate onto poly(ethylene terephthalate) fibers using azobisisobutyronitrile is reported. An increase in temperature and monomer concentration were found to increase the graft yield. The graft yield increased up to an initiator concentration of 0.90 X 10(-2) mol/L and decreased at higher initiator concentrations. The fiber densities decreased, and fiber diameters and intrinsic viscosities increased with increasing graft yield. Moisture regain values showed a slight increase with the grafting. Fiber orientation decreased the graft yield to an important extent. The overall activation energy for grafting was calculated to be 11.9 kcal/mol. (C) 1993 John Wiley & Sons, Inc.
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页码:1123 / 1129
页数:7
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