Chen Yi, Lin Liang-Kai, Chiang Shu-Jen, Liu Ying-Ling
Department of Chemical Engineering, National Tsing Hua University, #101, Sec. 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan.
Chemical Systems Research Division, National Chung-San Institute of Science and Technology, Lungtan, Taoyuan, 32517, Taiwan.
Macromol Rapid Commun. 2017 Feb;38(4). doi: 10.1002/marc.201600616. Epub 2016 Dec 27.
In this work, a cocatalytic effect between Meldrum's acid (MA) and benzoxazine (Bz) compounds has been explored to build up a self-promoting curing system. Consequently, the MA/Bz reactive blend exhibits a relatively low reaction temperature compared to the required temperatures for the cross-linking reactions of the pure MA and Bz components. This feature is attractive for energy-saving processing issues. Moreover, the thermosetting resins based on the MA/Bz reactive blends have been prepared. The MA component can generate additional free volume in the resulting resins, so as to trap air in the resin matrix and consequently to bring low dielectric constants to the resins. The MA-containing agent is an effective modifier for benzoxazine resins to reduce their dielectric constants.
在本工作中，已探索了丙二酸（MA）与苯并恶嗪（Bz）化合物之间的助催化作用，以构建一个自促进固化体系。因此，与纯MA和Bz组分交联反应所需温度相比，MA/Bz反应性共混物表现出相对较低的反应温度。这一特性对于节能加工问题具有吸引力。此外，还制备了基于MA/Bz反应性共混物的热固性树脂。MA组分可在所得树脂中产生额外的自由体积，从而在树脂基体中捕获空气，进而使树脂具有低介电常数。含MA的试剂是降低苯并恶嗪树脂介电常数的有效改性剂。
