文献类型：期刊文献

中文题名：可聚合乳化剂制备纳米色料的形貌及其影响因素

英文题名：Morphology and Its Influencing Factors of Nanocolorants Prepared with Polymerizable Emulsifier

作者：杜起[1];李忠辉[1];吴秋芳[1];高玮[1];马新胜[1]

机构：[1]华东理工大学化工学院,超细粉末国家工程研究中心,上海200237

年份：2014

卷号：27

期号：3

起止页码：327

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

语种：中文

中文关键词：细乳液聚合;可聚合乳化剂;极性单体;纳米色料;粒径分布

外文关键词：miniemulsion polymerization;polymerizable emulsifier;polar monomer;nanocolorant;parti-cle size distribution

摘要：以α-烯烃磺酸钠(AOS)为可聚合乳化剂、苯乙烯(St)为非极性单体、甲基丙烯酸甲酯(MMA)为极性单体、二乙烯基苯(DVB)为交联剂、十六烷(HD)为助稳定剂,通过细乳液聚合法制备了聚合物包覆蒽醌类染料的纳米色料。利用透射电子显微镜(TEM)、激光粒度仪(DLS)等研究了可聚合乳化剂、极性单体和交联剂的用量对纳米色料形貌的影响。结果表明:该纳米色料具有明显的核壳结构,且乳液的稳定性好。随着乳化剂用量的增加,粒子粒径变小;少量极性单体的加入有助于得到粒径分布较窄的核壳结构纳米粒子,交联剂和单体彼此极性的差异会导致粒子表面粗糙。以St为聚合单体,当DVB的质量小于St质量的30%时,能够得到结构规整的纳米粒子,超过30%时,纳米粒子表面不再光滑。而以MMA为聚合单体,当DVB的质量为MMA的8%~30%时,粒子表面均凹凸不平。
Nanocolorants were prepared by miniemulsion polymerization with sodiumα-olefin sulfonate(AOS)as polymerizable emulsifier,styrene(St)as monomer,methyl methacrylate(MMA)as polar monomer,divinylbenzene(DVB)as crosslinking agent,hexadecane(HD)as co-stabilizer.Transmission Electron Microscopy(TEM)and Dynamic Laser Light Scattering(DLS)were used to study the effects of the amount of AOS,polar monomer and crosslinker on the morphology of nanocolorants.Results showed that the average particle size of nanocolorants decreased with the increasing of the amount of AOS.Appropriate amount of polar monomer was helpful to produce the core-shell particles with narrow particle size distribution.The difference of polarity between monomer and crosslinker led to the rough surface of nanocolorants.When St was used as monomer,the nanocolorants appeared crumpled surface as the mass of DVB relative to St was higher than 30%.However,for MMA,the nanocolorants appeared serious crumpled surface when the mass of DVB relative to MMA was in the range of 8%—30%.