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Abstract：
This article presents a study on the synthesis and catalytic properties of copper complex (TPhTz)2[CuBr4] (here TPhTz is 2,3,5-triphenyltetrazolium). The obtained complex was characterized by various spectroscopic methods. The catalytic properties of the complex were evaluated in the curing of an epoxy vinyl ester system and their effectiveness was compared with that of cobalt octoate (its synonyms are known as Co(Oct)2, cobalt(II) 2-ethylhexanoate, cobalt isocaprylate, etc.). The catalyst was added at an amount of 2 w.%. The results showed that a 8 w.% solution of the complex provides catalytic properties with an activation energy of 54.7 kJ/mol, which is 25.2 kJ/mol higher than a standard curing system with Co(Oct)2. Thus, the solution of (TPhTz)2[CuBr4] in THF/DMSO accelerates the initiator decay process at room temperature, but for a longer time. The authors suggest that the curing mechanism may be accelerated by the appearance of (TPhTz)2[CuIBr3] and free bromine in the system. A strength test of fiberglass-reinforced plastic revealed that the addition of this complex did not lead to a decrease in flexural strength and hardness. Thus, use of the complex allowed for the production of polymer composite products using vacuum-assisted resin transfer molding where an extended injection time was needed.
摘要：
本文介绍了铜配合物（TPhTz）2[CuBr4]（此处TPhTz是2,3,5-三苯基四唑）的合成和催化性能的研究。通过各种光谱方法表征所获得的络合物。在环氧乙烯基酯体系的固化中评估了络合物的催化性能，并将其有效性与辛酸钴（其同义词称为Co（Oct）2，2-乙基己酸钴（II），异辛酸钴，等。).催化剂以2w.%的量加入。结果表明，8w。％的配合物溶液提供了催化性能，活化能为54.7kJ/mol，比具有Co(Oct)2的标准固化体系高25.2kJ/mol。因此，（TPhTz）2[CuBr4]在THF/DMSO中的溶液在室温下加速了引发剂的衰变过程，但时间更长.作者认为，固化机理可以通过系统中（TPhTz）2[CuIBr3]和游离溴的出现来加速。玻璃纤维增强塑料的强度测试表明，添加该复合物不会导致弯曲强度和硬度降低。因此，复合物的使用允许使用真空辅助树脂传递模塑生产聚合物复合材料产品,其中需要延长的注射时间。
