High temperature initiator-free RAFT polymerization of methyl methacrylate in a microwave reactor

R.M. Paulus, C.R. Becer, R. Hoogenboom, U.S. Schubert

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

The reversible additionfragmentation chain transfer (RAFT) polymerization of methyl methacrylate (MMA) was investigated under microwave irradiation. At first, a comparison was made between microwave and thermal heating for the RAFT polymerization of MMA with azobis(isobutyronitrile) (AIBN) as initiator and 2-cyano-2-butyldithiobenzoate (CBDB) as RAFT agent, revealing comparable polymerization kinetics indicating the absence of non-thermal microwave effects. Second, the CBDB-mediated RAFT polymerization of MMA was investigated at high temperatures (120C, 150C, and 180C, respectively) in the absence of a radical initiator, showing a linear increase of the molar masses with conversion. The polydispersity indices remained below 1.5 up to 25% MMA conversion at 120C and 150C, indicating a controlled polymerization. This control over the polymerization was confirmed by the ability to control the molar masses by the concentration of RAFT agent. © 2009 CSIRO.
Original languageEnglish
Pages (from-to)254-259
JournalAustralian Journal of Chemistry
Volume62
Issue number3
DOIs
Publication statusPublished - 2009

Fingerprint

Dive into the research topics of 'High temperature initiator-free RAFT polymerization of methyl methacrylate in a microwave reactor'. Together they form a unique fingerprint.

Cite this