(Cryo)-TEM Assessment of Droplet Nucleation Efficiency in Hybrid Acrylic/CeO2 Semibatch Miniemulsion Polymerization

被引：6

作者：

Aguirre, M. ^{[1
]}

Barrado, M. ^{[2
]}

Paulis, M. ^{[1
]}

Leiza, J. R. ^{[1
]}

机构：

[1] Univ Basque Country UPV EHU, POLYMAT, Kimika Aplikatua Saila, Joxe Mari Korta Zentroa,Zientzien Fak, Donostia San Sebastian 20018, Spain

[2] Univ Basque Country UPV EHU, SGIker, Joxe Mari Korta Zentroa, Donostia San Sebastian 20018, Spain

来源：

MACROMOLECULES | 2014年 / 47卷 / 23期

关键词：

PARTICLE NUCLEATION; ALKYL METHACRYLATE; STYRENE; LATEXES;

D O I：

10.1021/ma5021193

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Monomer droplet nucleation has been successfully tracked in a seeded semibatch miniemulsion polymerization with miniemulsion feeding. Taking advantage of the marker capacity of CeO2 nanoparticles two polymerizations were designed. In the first one the seed contained nanoceria while a blank monomer miniemulsion was fed to the reactor and in the second reaction the opposite was done; namely, the seed did not contain any CeO2 and the miniemulsion fed did. In this way, the presence of the CeO2 in either seed or nucleated particles allowed tracking the fraction of droplets that efficiently nucleated during miniemulsion feeding. Conventional TEM and cryo-TEM were used to monitor the nucleation efficiency by analyzing separately the particles that did or did not contain CeO2 nanoparticles.

引用

页码：8404 / 8410

页数：7

共 19 条

[1] Particle nucleation and growth in seeded semibatch miniemulsion polymerization of hybrid CeO2/acrylic latexes [J].