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High temperature initiator-free RAFT polymerization of methyl methacrylate in a microwave reactor
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Paulus, Renzo M., Becer, C. Remzi, Hoogenboom, Richard and Schubert , Ulrich S. (2009) High temperature initiator-free RAFT polymerization of methyl methacrylate in a microwave reactor. Australian Journal of Chemistry, Vol.62 . pp. 254-259. doi:10.1071/CH09064 ISSN 0004-9425.
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Abstract
The reversible addition–fragmentation 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 (120
◦
C, 150
◦
C, and
180
◦
C, 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 120
◦
C and 150
◦
C, 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
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||
Library of Congress Subject Headings (LCSH): | Polymerization, Methyl methacrylate, High temperature chemistry | ||||
Journal or Publication Title: | Australian Journal of Chemistry | ||||
Publisher: | CSIRO Publishing | ||||
ISSN: | 0004-9425 | ||||
Official Date: | 2009 | ||||
Dates: |
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Volume: | Vol.62 | ||||
Page Range: | pp. 254-259 | ||||
DOI: | 10.1071/CH09064 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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