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Preparation of Acrylate Latex via RAFT Soap-Free Emulsion Polymerization

机译：通过RAFT无皂乳液聚合制备丙烯酸酯胶乳

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Without effects of residual surfactants, soap-free emulsion polymerization products could have better physical and chemical properties, mechanical properties and water resistance compared with those prepared via conventional emulsion polymerization. In this work, soap-free reversible addition-fragmentation chain transfer (RAFT) emulsion polymerization of methyl methacrylate and n-butyl acrylate was successfully accomplished in the presence of poly (acrylic acid-b-styrene)-b-trithiocarbonate as surfactant and RAFT agent. Effect of NaOH aqueous solution neutralizing agent on polymerization process and the properties of latex and film were studied. The results showed that the addition of NaOH aqueous solution affected the polymerization process and the particle size of polyacrylate latex. Moreover, the water contact angle and the water absorption ratio of the latex film could reach 90° and 3.9%, respectively, by controlling the dosage of NaOH.
机译：在无残留表面活性剂影响的情况下，无皂乳液聚合产品与常规乳液聚合制备的产品相比，具有更好的物理和化学性能，机械性能和耐水性。在这项工作中，在作为表面活性剂的聚（丙烯酸-b-苯乙烯）-b-三硫代碳酸酯和RAFT存在下，成功完成了甲基丙烯酸甲酯和丙烯酸正丁酯的无皂可逆加成-断裂链转移（RAFT）乳液聚合。代理商。研究了NaOH水溶液中和剂对聚合过程的影响以及胶乳和薄膜的性能。结果表明，NaOH水溶液的加入会影响聚合过程和聚丙烯酸酯胶乳的粒径。另外，通过控制NaOH的用量，乳胶膜的水接触角和吸水率分别可以达到90°和3.9％。

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