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首页> 外文期刊>Journal of Applied Polymer Science >Kinetic study of emulsion copolymerization methacrylate/lauryl methacrylate in propylene glycol, stabilized with poly(ethylene oxide)-block-polystyrene-block-poly (ethylene oxide) triblock copolymer
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Kinetic study of emulsion copolymerization methacrylate/lauryl methacrylate in propylene glycol, stabilized with poly(ethylene oxide)-block-polystyrene-block-poly (ethylene oxide) triblock copolymer

机译：聚（环氧乙烷）-嵌段-聚苯乙烯-嵌段-聚（环氧乙烷）三嵌段共聚物稳定化丙二醇中甲基丙烯酸酯/甲基丙烯酸月桂酯乳液共聚的动力学研究

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The kinetics of emulsion copolymerization of ethyl methacrylate (EMA)/lauryl methacrylate (LMA) in propylene glycol is very similar to the emulsion copolymerizations of water-soluble monomers in water because of the high solubility of EMA/LMA in propylene glycol. The initial rate of polymerization depends only on initiator concentration and is not affected by either monomer concentration or stabilizer concentration. The overall rate of polymerization is only slightly dependent on monomer concentration and stabilizer concentration and is independent of initiator concentration. The final particle number density increases with increasing amount of stabilizer and decreases with increasing monomer concentration. The total surface area increases with stabilizer concentration and is not governed by either initiator concentration or monomer concentration. Homogeneous nucleation is the dominant mechanism of particle nucleation, as shown by the kinetic data on seeded polymerization and monomer partition behavior. (C) 2001 John Wiley & Sons, Inc. [References: 46]
机译：甲基丙烯酸乙酯（EMA）/甲基丙烯酸月桂酯（LMA）在丙二醇中的乳液共聚动力学与水溶性单体在水中的乳液共聚非常相似，因为EMA / LMA在丙二醇中的溶解度很高。聚合的初始速率仅取决于引发剂的浓度，不受单体浓度或稳定剂浓度的影响。聚合的总速率仅略微取决于单体浓度和稳定剂浓度，并且与引发剂浓度无关。最终颗粒数密度随稳定剂含量的增加而增加，而随单体浓度的增加而减小。总表面积随稳定剂浓度的增加而增加，不受引发剂浓度或单体浓度的控制。均相成核是颗粒成核的主要机理，如种子聚合和单体分配行为的动力学数据所示。 （C）2001 John Wiley＆Sons，Inc. [参考：46]

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