scholarly journals Efficient metal-free strategies for polymerization of a sterically hindered ionic monomer through the application of hard confinement and high pressure

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6396-6408 ◽  
Author(s):  
Paulina Maksym ◽  
Magdalena Tarnacka ◽  
Andrzej Dzienia ◽  
Kamila Wolnica ◽  
Mateusz Dulski ◽  
...  
Keyword(s):  
High Pressure ◽  
Free Radical ◽  
Chain Transfer ◽  
Metal Free ◽  
Reversible Addition ◽  
Ionic Monomer ◽  
Sterically Hindered

The effect of hard confinement and high pressure on the progress of free-radical and reversible addition-fragmentation chain transfer polymerizations of sterically hindered 1-octyl-3-vinylimidazolium bis(trifluoromethanesulfonyl)imide ([OVIM][NTf2]) has been investigated.

Living Free-Radical Polymerization by Reversible Addition−Fragmentation Chain Transfer:  The RAFT Process

1998 ◽  
Vol 31 (16) ◽  
pp. 5559-5562 ◽  
Author(s):  
John Chiefari ◽  
Y. K. (Bill) Chong ◽  
Frances Ercole ◽  
Julia Krstina ◽  
Justine Jeffery ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Free Radical Polymerization ◽  
Reversible Addition ◽  
Living Free Radical Polymerization

scholarly journals Methylenelactide: vinyl polymerization and spatial reactivity effects

2016 ◽  
Vol 12 ◽  
pp. 2378-2389 ◽  
Author(s):  
Judita Britner ◽  
Helmut Ritter
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Free Radical Polymerization ◽  
Controlled Radical Polymerization ◽  
Experimental Results ◽  
Cyclic Monomer ◽  
Vinyl Polymerization ◽  
Reversible Addition

The first detailed study on free-radical polymerization, copolymerization and controlled radical polymerization of the cyclic push–pull-type monomer methylenelactide in comparison to the non-cyclic monomer α-acetoxyacrylate is described. The experimental results revealed that methylenelactide undergoes a self-initiated polymerization. The copolymerization parameters of methylenelactide and styrene as well as methyl methacrylate were determined. To predict the copolymerization behavior with other classes of monomers, Q and e values were calculated. Further, reversible addition fragmentation chain transfer (RAFT)-controlled homopolymerization of methylenelactide and copolymerization with N,N-dimethylacrylamide was performed at 70 °C in 1,4-dioxane using AIBN as initiator and 2-(((ethylthio)carbonothioyl)thio)-2-methylpropanoic acid as a transfer agent.

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