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

作者：Hornung Christian H^*; Postma Almar; Saubern Simon; Chiefari John

来源：Macromolecular Reaction Engineering, 2012, 6(6-7): 246-251.

DOI：10.1002/mren.201200007

• continuous flow
• flow chemistry
• microreactors
• radical polymerization
• RAFT polymerization

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, methacrylate, and styrene are polymerized at 70-100 degrees C 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 degrees C 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?center dot?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 by post-treatment.

• 出版日期2012-7
• 单位CSIRO