A Continuous Flow Process for the Radical Induced End Group Removal of RAFT Polymers

Christian H. Hornung; Almar Postma; Simon Saubern; John Chiefari

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A Continuous Flow Process for the Radical Induced End Group Removal of RAFT Polymers

机译：RAFT聚合物自由基诱导端基去除的连续流动过程

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A continuous flow process for the radical-induced end-group removal of polymers made by a RAFT process is described. A series of different monomers, including acrylamides, methacryl- ate, and styrene are polymerized at 70-100 ℃ using various different RAFT agents, solvents, and radical initiators. The subsequent end group removal process is carried out in a steel tube flow reactor system at 100 ℃ in organic solvents or water. After reaction, the polymers exhibit low polydispersities between 1.03 and 1.19, and average molecular weights between 7500 and 22 800 g • mol~(-1). This continuous flow approach provides a facile alternative scale-up route to conventional batch operation and can be integrated into a sequential flow process consisting of RAFT polymerization followed

机译：描述了通过RAFT方法制备的用于自由基引发的端基去除聚合物的连续流动方法。使用各种不同的RAFT试剂，溶剂和自由基引发剂，在70-100℃下聚合一系列不同的单体，包括丙烯酰胺，甲基丙烯酸酯和苯乙烯。随后的端基去除过程是在钢管流动反应器系统中于100℃下于有机溶剂或水中进行的。反应后，聚合物的低分散度在1.03至1.19之间，平均分子量在7500至22800 g•mol〜（-1）之间。这种连续流动的方法为常规间歇操作提供了一种简便的替代放大途径，并且可以集成到由RAFT聚合和

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来源
《Macromolecular reaction engineering》 |2012年第7期|p.246-251|共6页
作者
Christian H. Hornung; Almar Postma; Simon Saubern; John Chiefari;
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作者单位

CSIRO Materials Science & Engineering, Bag 10, Clayton South Victoria 3169, Australia;

CSIRO Materials Science & Engineering, Bag 10, Clayton South Victoria 3169, Australia;

CSIRO Materials Science & Engineering, Bag 10, Clayton South Victoria 3169, Australia;

CSIRO Materials Science & Engineering, Bag 10, Clayton South Victoria 3169, Australia;

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原文格式 PDF
正文语种 eng
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关键词
continuous flow; flow chemistry; microreactors; radical polymerization; RAFT polymerization;

机译：连续流流动化学微反应器自由基聚合;RAFT聚合;

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1. Thiocarbonylthio End Group Removal from RAFT-Synthesized Polymers by a Radical-Induced Process [J] . Chen M, Moad G, Rizzardo E Journal of Polymer Science, Part A. Polymer Chemistry . 2009,第23期

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2. Integrated Continuous Processing and Flow Characterization of RAFT Polymerization in Tubular Flow Reactors [J] . Christian H. Hornung, Xuan Nguyen, Geoff Dumsday, Macromolecular reaction engineering . 2012,第11期

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3. Copper-mediated controlled radical polymerization in continuous flow processes: Synergy between polymer reaction engineering and innovative chemistry [J] . Chan N., Cunningham M.F., Hutchinson R.A. Journal of Polymer Science, Part A. Polymer Chemistry . 2013,第15期

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机译：“通过基于水和/或甘油的自由基或筏控制的自由基共聚合和加工助剂来熔融可加工的丙烯腈共聚物”
5. The application of controlled radical polymerization processes on the graft copolymerization of hydrophobic substituents onto guar gum and guar gum derivatives. [D] . Holmes, Veronica K. 2007

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机译：顺丁烯二酸酐全氟辛基和甲基丙烯酸丁酯或十二烷基酯的自由基共聚合合成均相组成的三元共聚物：连续流单体加成技术的应用
7. Copper-mediated controlled radical polymerization in continuous flow processes: Synergy between polymer reaction engineering and innovative chemistry [O] . Nicky Chan, Michael F. Cunningham, Robin A. Hutchinson 2013

机译：连续流动过程中铜介导的控制自由基聚合：聚合物反应工程与创新化学之间的协同作用

A Continuous Flow Process for the Radical Induced End Group Removal of RAFT Polymers

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