SYNTHESIS OF STYRENIC TONER PARTICLES BY SPG EMULSIFICATION TECHNIQUE

This research studied the initiator efficiency for producing polymeric particles of poly(styrene-co-methylmethacrylate) copolymers by a Shirasu porous glass membrane (SPG) emulsification technique followed by suspensioncopolymerization. BPO, ADVN, and AIBN were used as initiators and we found that BPO is the most suitable initiator.Copolymers for various feed ratios of styrene/methyl methacrylate were thus synthesized by benzoyl peroxide, and theircopolymer particle size, molecular weight distribution and particle size distribution were characterized. Then n-BMA or 2-EHMA was added as the third monomer to decrease the terpolymer glass transition temperature. This article describes thepreparation technique, recipes and polymerization conditions for producing both copolymer and terpolymer panicles, particlesize changes, the corresponding particle morphologies and glass transition temperatures.

Thermal Emulsion Polymerization without any Conventional Initiators and Emulsifiers

稳定 poly (styrene-co-sodium 苯乙烯 sulfonate )( 没有任何常规开始者，有更宽广的大小分布的 P (St-NaSS ) nanoparticles 被热乳液聚合综合， emulsifiers.The 获得了聚合物 nanoparticles 更高的希腊语的第六个字母潜力，和粒子大小有宽广分发。聚合物粒子的稳定性从离子的共聚用单体的小数量的增加发源， NaSS，它能充当两性乳化剂在有点。单体变换能在 48 h 到达直到大约 28 wt% ，并且当更高的聚合温度(120 deg 6 号元素碳的化学符号) 是 employed.Thispolymerization 时，没由进一步的聚合增加系统可以是进一步给一些为乳液聚合的机制理解。