Synthesis of core-shell polystyrene nanoparticles by surfactant free emulsion polymerization using macro-RAFT agent

被引：59
|
作者：
Yeole, Niranjan [1 ,2 ]
Hundiwale, Dilip [1 ]
Jana, Tushar [2 ]
机构：
[1] N Maharashtra Univ, Sch Chem Sci, Jalgaon, India
[2] Univ Hyderabad, Sch Chem, Hyderabad 500134, Andhra Pradesh, India
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2011年 / 354卷 / 02期
关键词：
Core-shell particles; Surfactant free emulsion polymerization; Macro-RAFT agent; RAFT polymerization; Polystyrene; DIBLOCK COPOLYMER; STYRENE; STABILIZER;
D O I：
10.1016/j.jcis.2010.11.021
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel approach for the synthesis of core-shell polystyrene nanoparticles by living hydrophilic polymer consisting of thiocarbonyl thio end group is reported. The surfactant free emulsion polymerization of styrene in the presence of macro-RAFT (reversible addition fragmentation chain transfer) agent is carried out to synthesize stable latex particles with smaller particle size. A macro-RAFT agent is prepared by homo-polymerization of sodium styrene sulfonate (NaSS) in aqueous phase by using dithioester as chain transfer agent. This synthesized polystyrene sulfonate-sodium (PSS-Na) based macro-RAFT agent, which is essentially water soluble macromolecular chain transfer agent used for the surfactant-free batch emulsion polymerization of styrene. Transmission electron microscopy (TEM) study of the synthesized colloids shows the narrow particle size distribution with core-shell morphology. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码：506 / 510
页数：5
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