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本文研究了在苯乙烯不外加乳化剂的乳液聚合体系中,加入王冠醚18-冠-6对聚合反应及其产物的影响。发现18-冠-6能起到相转移催化作用,并提出两相粒子成核机理,对实验结果作出了合理的解释。
In this paper, we studied the effect of crown ether 18-crown-6 on the polymerization and its products in the emulsion polymerization of styrene without emulsifier. It was found that 18-crown-6 can act as phase-transfer catalysis, and the nucleation mechanism of two-phase particles was proposed. The experimental results are explained reasonably.