TEMPERATURE EFFECTS ON THE KINETICS OF PHOTOINITIATED POLYMERIZATION OF DIMETHACRYLATES
TEMPERATURE EFFECTS ON THE KINETICS OF PHOTOINITIATED POLYMERIZATION OF DIMETHACRYLATES
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DOI：
10.1016/0032-3861(91)90482-x
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发表时间：
1991-01-01
期刊：
影响因子：
4.6
通讯作者：
CHALLA, G
中科院分区：
文献类型：
--
作者：
BROER, DJ;MOL, GN;CHALLA, G
研究了三种双酚A型二甲基丙烯酸酯的光引发聚合。 二甲基丙烯酸酯的聚合速率随温度升高至160 ℃而增加。 在此温度以上，解增长开始主导聚合，并且速率在210 ℃以上接近零。 在二丙烯酸酯的情况下，区分三个温度区域。 低于90 ℃时，聚合速率随温度而增加。 在90和145 ℃之间，链转移抑制了自加速，这导致聚合速率随温度升高而降低。 高于145 ℃的解扩导致额外的速率降低。
The photoinitiated polymerization of three bisphenol-A-based dimethacrylates is studied. The polymerization rate of the dimethacrylate increases with temperature up to 160-degrees-C. Above this temperature depropagation starts to dominate the polymerization and the rate approaches zero above 210-degrees-C. In the case of the diacrylates three temperature regions are distinguished. Below 90-degrees-C the polymerization rate increases with temperature. Between 90 and 145-degrees-C chain transfer suppresses the autoacceleration which results in a decreasing polymerization rate with increasing temperature. Above 145-degrees-C depropagation causes an additional rate decrease.