文献类型：期刊文献

英文题名：Heterocoagulation behavior of carbon black with surface encapsulation through emulsion polymerization

作者：Jiang, Lili[1];Wang, Wenqi[1];Guan, Aiguo[1];Wu, Guozhang[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China

年份：2016

卷号：133

期号：23

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20160902044832);WOS:【SCI-EXPANDED(收录号:WOS:000372501900021)】；

基金：This work was supported by grant from the National Natural Science Foundation of China (Grant 51373053).

语种：英文

外文关键词：emulsion polymerization; nanostructured polymers; surfactants

摘要：Nanocomposite microspheres containing styrene-acrylate resin, wax, and carbon black (CB) with desired CB dispersion were prepared through heterocoagulation. The CB surface was modified using conventional anionic emulsifier and anionic dispersants with different lengths of nonionic chains and reactivities or through polymer encapsulation via emulsion polymerization to regulate the dispersion and concentration of CB in the microspheres. Experimental results showed that anionic dispersants with long nonionic chains effectively dispersed and stabilized CB particles. Polystyrene (PS) was then encapsulated on the CB surface by using a reactive dispersant and a water-soluble initiator of polymerization. The CB particles exhibited comparable pH stability with other heterocoagulation components. Overall, encapsulation through emulsion polymerization can be used to obtain not only high CB content but also improved CB distribution in the resulting microspheres. High coagulation efficiency can also be achieved using polystyrene-encapsulated dispersed CB because of its high affinity to emulsifiers and reactive dispersants during dispersion. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43516.