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首页> 外文期刊>Journal of Applied Polymer Science >Kinetic Behavior of Photo-Polymerization of UV-Curable Resins with Carboxylic Acid and Amino Groups
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Kinetic Behavior of Photo-Polymerization of UV-Curable Resins with Carboxylic Acid and Amino Groups

机译：紫外线固化树脂与羧酸和氨基的光聚合动力学行为

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摘要

Photo-polymerization behaviors of bisphenol-A epoxy diacrylate (EPA) and six kinds of EPAderived resins containing different amounts of carboxylic acid, urethane, amide, and imide groups were studied by a photo differential scanning calorimetry. The dark polymerization was performed and pseudo-steady state assumption of growing radicals was made to obtain the kinetic constants for propagation, bimolecular termination, monomolecular termination, and the concentration of growing radicals of different resins as a function of extent of reaction. Compared with EPA, it was found that the rate of polymerization and kinetic constants of the six resins were relatively small because the mobility of reacting species in resins was restricted by carboxylic acid, urethane, amide, and imide groups. Finally, three different photo-initiators were used to initiate the polymerization, and their kinetic behaviors were compared. The effect of tertiary amine group of photo-initiator on the rate of polymerization of resins having carboxylic acid group and the initiator efficiency were discussed.
机译：通过光差示扫描量热法研究了双酚A环氧二丙烯酸酯（EPA）和六种包含不同数量的羧酸，尿烷，酰胺和酰亚胺基团的EPA衍生树脂的光聚合行为。进行暗聚合，并假设增长的自由基为拟稳态，以获得传播，双分子终止，单分子终止的动力学常数，以及不同树脂的增长自由基的浓度作为反应程度的函数。与EPA相比，发现六种树脂的聚合速率和动力学常数相对较小，这是因为树脂中反应物种的迁移率受到羧酸，氨基甲酸酯，酰胺和酰亚胺基团的限制。最后，使用三种不同的光引发剂引发聚合反应，并比较了它们的动力学行为。讨论了光引发剂的叔胺基对具有羧酸基的树脂的聚合速率和引发剂效率的影响。

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