Radical polymerization of styrene and methyl methacrylate in a microwave reactor

被引：0
|
作者：
Brzozowska, Tatiana [1 ]
Zielinski, Janusz [1 ]
Ciesinska, Wieslawa [1 ]
机构：
[1] Warsaw Univ Sci & Technol, Inst Chem Szkota Nauk Tech & Spotecznych, PL-09400 Plock, Poland
来源：
PRZEMYSL CHEMICZNY | 2006年 / 85卷 / 07期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A multimodule microwave reactor was used to radically polymerize styrene and Me methacrylate with benzoyl peroxide as initiator and poly(vinyl alcohol) as emulsifier at 200, 400, or 600 W for 10-90 min. Thermal polymn. was run for 60-240 min at 85-90 degrees C. Irradiation power 400 W and polymn. time 90 min gave the resp. polymers in 93% and 95% yields. Nonpolars (cyclohexane, 1,4-dioxane) vs. water as solvent ensured shorter (by resp. similar to 65 and 25%) polymn. time and tripled yield. The higher the power and the more the initiator (0.2-0.6 g), the higher the M of polystyrene (max. 198.4 kDa; max. diff. 20%) and the lower the M of PMMA).
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页码：507 / 509
页数：3
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