Improvement of the thermal stability of cluster-crosslinked polystyrene and poly(methyl methacrylate) by optimization of the polymerization conditions

被引:32
作者
Gao, Y [1 ]
Kogler, FR [1 ]
Schubert, U [1 ]
机构
[1] Vienna Univ Technol, Inst Mat Chem, A-1060 Vienna, Austria
关键词
crosslinking; glass transition temperature; poly(methyl methacrylate); polystyrene; thermal stability;
D O I
10.1002/pola.21137
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 polymerization conditions for polystyrene and poly(methyl methacrylate) crosslinked by 0.5 mol % of the cluster Zr6O4(OH)(4)(methacrylate)(12) were optimized by applying a step polymerization procedure. The onset of thermal decomposition was thus increased up to about 50 degrees for polystyrene and about 110 degrees for poly (methyl methacrylate). The increase in thermal stability correlated with a higher char yield. The glass transition temperatures were also increased by about 15 degrees. (c) 2005 Wiley Periodicals, Inc.
引用
收藏
页码:6586 / 6591
页数:6
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