Atom Transfer Radical Dispersion Polymerization of Styrene in the Presence of PEO-based Macromonomer

被引：17

作者：

Li, Wenwen ^{[1
]}

Matyjaszewski, Krzysztof ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA

来源：

MACROMOLECULAR CHEMISTRY AND PHYSICS | 2011年 / 212卷 / 15期

基金：

美国安德鲁·梅隆基金会; 美国国家科学基金会;

关键词：

atom transfer radical polymerization; dispersion polymerization; macromonomer; reactive stabilizer; N-BUTYL METHACRYLATE; BLOCK-COPOLYMERS; REACTION PARAMETERS; HETEROPHASE POLYMERIZATION; EMULSION POLYMERIZATION; REACTIVE SURFACTANTS; SIZE DISTRIBUTION; MOLECULAR-WEIGHT; ALCOHOLIC MEDIA; POLAR-SOLVENTS;

D O I：

10.1002/macp.201100172

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Commercially available poly(ethylene oxide) macromonomers are successfully used as reactive stabilizers for atom transfer radical dispersion/precipitation polymerization of styrene. Polystyrene particles with PEO chains covalently anchored on the surfaces are obtained. Control over both the particle size and polymer chain growth is achieved using a two-stage technique consisting of an initial free radical polymerization (FRP) for the nucleation followed by a reverse atom transfer radical polymerization (ATRP) for the controlled polymerization process. The limited monomer conversion at the FRP step ensures that the overall polymerization process is mainly controlled by the reverse ATRP step, resulting in the formation of particles containing well-defined polymer chains.

引用

页码：1582 / 1589

页数：8

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