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在少量双官能团水溶性共单体（磺化丁二酸－聚乙二醇－烯丙基缩水甘油醚酯）存在下进行ＭＭＡ／ＢＡ无皂乳液聚合，用ＣｏｕｌｔｅｒＬＳ２３０激光粒径分析仪研究了乳胶粒子的成核机理和单分散粒子的形成过程．乳胶粒子的成粒过程属多步成粒机理：先均相成核，形成不稳定的初始粒子，然后凝聚成稳定乳胶粒，其粒径分布经历了先变宽后变窄的过程，这是聚合过程中成核－凝聚－增长共同作用，相互竞争的结果．它还导致聚合初期出现周期成核的现象．
MMA / BA soap-free emulsion polymerization was carried out in the presence of a small amount of a bifunctional water-soluble co-monomer (sulfonated succinic acid-polyethylene glycol-allyl glycidyl ether ester) and latex was investigated using a Coulter LS230 laser particle size analyzer Particle nucleation mechanism and monodisperse particle formation. The granulation process of latex particles is a multi-step granulation mechanism: the first homogeneous nucleation, the formation of unstable primary particles, and then aggregated into a stable latex particles, the particle size distribution of the first broadened and narrowed after the process, which is The process of nucleation-aggregation-growth in the polymerization process is the result of mutual competition. It also leads to periodic nucleation at the beginning of polymerization.