Synthesis of large-scale, monodisperse latex particles via one-step emulsion polymerization through in situ charge neutralization
Synthesis of large-scale, monodisperse latex particles via one-step emulsion polymerization through in situ charge neutralization
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通过原位电荷中和一步乳液聚合合成大规模单分散乳胶颗粒
DOI：
10.1016/j.colsurfa.2016.04.035
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发表时间：
2016-07
期刊：
影响因子：
--
通讯作者：
Zhang Huixuan
中科院分区：
文献类型：
--
作者：
Liu Baijun;Zhang Mingyao;Wu Guangfeng;Zhang Huixuan
采用十二烷基磺酸钠（SDS）和2, 2'-偶氮二（2-甲基丙酰胺）二盐酸盐（AIBA）分别作为表面活性剂和引发剂，通过简便的一步乳液聚合技术合成了单分散亚-200 nm聚苯乙烯纳米粒子。带负电的表面活性剂 SDS 和带正电的 AIBA 之间的原位中和用于控制初级颗粒（或溶胀胶束）体积和颗粒凝聚的程度。随着带有阳离子AIBA链端的低聚自由基被阴离子溶胀胶束捕获，溶胀胶束的静电稳定性逐渐降低，进一步促进初级颗粒的凝聚。结果，初始颗粒数随着 AIBA 的添加而减少。早期的初级粒子凝聚不仅增大了粒径，而且使最终乳胶粒子的粒径分布变窄。
Monodisperse sub −200 nm polystyrene nanoparticles were synthesized by a facile one-step emulsion polymerization technology using sodium dodecyl sulfonate (SDS) and 2, 2′- azobis (2-methylpropionamide) dihydrochloride (AIBA) as the surfactant and initiator, respectively. Thein situneutralization between negatively charged surfactant SDS and positively charged AIBA was used to control the primary particle (or swollen micelle) volume and the extent of the particle coagulation. As the oligomeric radicals with cationic AIBA chain ends were captured by anionic swollen micelles, the electrostatic stability of swollen micelles gradually reduced, further promoting the primary particle coagulation. As a result, the initial particle number decreased with the addition of AIBA. The earlier primary particle coagulation not only enlarged the particle size, but also narrowed the particle size distribution of final the latex particles.
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DOI：
10.1524/zpch.1974.92.1-3.155
发表时间：
1974-09
期刊：
--
影响因子：
--
作者：
R. Blokhra;Y. P. Sehgal
通讯作者：
R. Blokhra;Y. P. Sehgal
影响因子：
5.5
作者：
FEENEY, PJ;NAPPER, DH;GILBERT, RG
通讯作者：
GILBERT, RG
影响因子：
3.9
作者：
Chen, Yan;Jahanzad, Fatemeh;Sajjadi, Shahriar
通讯作者：
Sajjadi, Shahriar
影响因子：
9.9
作者：
Tetsuya Yamamoto;M. Nakayama;Y. Kanda;K. Higashitani
通讯作者：
Tetsuya Yamamoto;M. Nakayama;Y. Kanda;K. Higashitani
DOI：
10.1016/j.colsurfa.2014.03.100
发表时间：
2014-06
期刊：
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子：
--
作者：
Baijun Liu;Mingyao Zhang;Guixia Yu;Dan Chen;Huixuan Zhang
通讯作者：
Baijun Liu;Mingyao Zhang;Guixia Yu;Dan Chen;Huixuan Zhang