Kinetic Modeling of ICAR ATRP

被引：85

作者：

D'hooge, Dagmar R. ^{[1
,2
]}

Konkolewicz, Dominik ^{[1
]}

Reyniers, Marie-Francoise ^{[2
]}

Marin, Guy B. ^{[2
]}

Matyjaszewski, Krzysztof ^{[1
]}

机构：

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

[2] Univ Ghent, Chem Technol Lab, Ghent, Belgium

来源：

MACROMOLECULAR THEORY AND SIMULATIONS | 2012年 / 21卷 / 01期

基金：

美国国家科学基金会;

关键词：

atom-transfer radical polymerization (ATRP); control; kinetics (polym; livingness; modeling; TRANSFER RADICAL POLYMERIZATION; EVALUATED RATE COEFFICIENTS; METHYL-METHACRYLATE; ELECTRON-TRANSFER; COPOLYMERIZATION; SIMULATIONS; TERMINATION; INITIATION; CONSTANTS; DIFFUSION;

D O I：

10.1002/mats.201100076

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Kinetic modeling is used to better understand and optimize initiators for continuous activator regeneration atom-transfer radical polymerization (ICAR ATRP). The polymerization conditions are adjusted as a function of the ATRP catalyst reactivity for two monomers, methyl methacrylate and styrene. In order to prepare a well-controlled ICAR ATRP process with a low catalyst amount (ppm level), a sufficiently low initial concentration of conventional radical initiator relative to the initial ATRP initiator is required. In some cases, stepwise addition of a conventional radical initiator is needed to reach high conversion. Under such conditions, the equilibrium of the activation/deactivation process for macromolecular species can be established already at low conversion.

引用

收藏

页码：52 / 69

页数：18

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