Photoinitiated cationic polymerization of epoxy alcohol monomers
Photoinitiated cationic polymerization of epoxy alcohol monomers
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DOI：
10.1002/(sici)1099-0518(20000201)38:3
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发表时间：
2000-02
期刊：
影响因子：
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通讯作者：
J. Crivello;Saoshi Liu
中科院分区：
文献类型：
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作者：
J. Crivello;Saoshi Liu
通过简单、直接的方法制备了一系列环氧醇。这些化合物是非常活泼的单体，在阳离子光引发剂存在下在紫外线照射下快速聚合。使用二芳基碘鎓盐光引发剂和实时红外光谱研究了这些单体的阳离子光聚合动力学。羟基的存在显着提高了环氧化物开环聚合的速率。使用模型化合物，单体通过活化的单体机制进行聚合。简单的环氧醇聚合得到具有超支化结构的聚合物。还观察到新型单体可以加速单官能和多官能环氧化物的光聚合速率。 © 2000 John Wiley & Sons, Inc. J Polym Sci A：Polym Chem 38：389–401，2000
A series of epoxy alcohols were prepared by simple, straightforward methods. These compounds were very reactive monomers that polymerized rapidly on UV irradiation in the presence of cationic photoinitiators. The kinetics of the cationic photopolymerization of these monomers were studied with diaryliodonium salt photoinitiators and real-time IR spectroscopy. The rate of epoxide ring-opening polymerization was enhanced markedly by the presence of the hydroxy group. Using model compounds, the monomers were shown to polymerize via an activated monomer mechanism. Simple epoxy alcohols polymerized to give polymers with a hyperbranched structure. The novel monomers also were observed to accelerate the rate of the photopolymerization of mono- and multifunctional epoxides. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 389–401, 2000