On the Evolution of the Rate of Polymerization, Number and Size Distribution of Particles in Styrene Emulsion Polymerization Above CMC
On the Evolution of the Rate of Polymerization, Number and Size Distribution of Particles in Styrene Emulsion Polymerization Above CMC
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DOI：
10.1002/pola.24098
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发表时间：
2010-07-15
影响因子：
--
通讯作者：
Castillo-Tejas, Jorge
中科院分区：
文献类型：
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作者：
Carro, Shirley;Herrera-Ordonez, Jorge;Castillo-Tejas, Jorge
这项工作是对两位作者[Carro和Herrera-Ordonez， Macromol Rapid comm2006, 27,274]所报道的交流的延伸，其中通过不对称流场流动分选（AFFF， AF(4)）获得的双峰粒径分布（PSD）被视为初级颗粒具有一定程度稳定性的证据。现在，苯乙烯的乳液聚合是在其他研究人员之前使用的条件下进行的，目的是检验所观察到的行为是否具有普遍性。采用动态光散射和AF4对颗粒数(N)和PSD进行了研究。到后来，在所有病例中都检测到双峰psd，其中种群对应于初级颗粒（直径）
This work is an extension of a communication reported by two of the authors [Carro and Herrera-Ordonez, Macromol Rapid Commun 2006, 27, 274], where bimodal particle size distributions (PSD), obtained by asymmetric flow-field flow fractionation (AFFF, AF(4)), were taken as evidence of certain degree of stability of primary particles. Now, emulsion polymerizations of styrene were performed under conditions employed before by other researchers, intending to examine if the behavior observed is general. The number of particles (N) and PSD were studied by means of dynamic light scattering and AF4. By the later, bimodal PSDs were detected in all cases, where the population corresponding to primary particles (diameter