Cyclodextrins in Polymer Synthesis:  Free-Radical Polymerization of Methylated β-Cyclodextrin Complexes of Methyl Methacrylate and Styrene Controlled byN-Acetyl-l-cysteine as a Chain-Transfer Agent in Aqueous Medium

2000 ◽  
Vol 33 (11) ◽  
pp. 4288-4290 ◽  
Author(s):  
Patrick Glöckner ◽  
Nadine Metz ◽  
Helmut Ritter
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
Aqueous Medium ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Free Radical Polymerization ◽  
Polymer Synthesis ◽  
Chain Transfer Agent ◽  
Cyclodextrin Complexes ◽  
A Chain

Synthesis and degradation of branched, photo-labile poly(acrylic acid) and polystyrene

2019 ◽  
Vol 10 (5) ◽  
pp. 593-602 ◽  
Author(s):  
O. Eckardt ◽  
S. Seupel ◽  
G. Festag ◽  
M. Gottschaldt ◽  
F. H. Schacher
Keyword(s):  
Free Radical ◽  
Acrylic Acid ◽  
Radical Polymerization ◽  
Chain Transfer ◽  
Free Radical Polymerization ◽  
Chain Transfer Agent ◽  
A Chain ◽  
Synthesis And Degradation ◽  
Poly Acrylic Acid

We present the synthesis, characterization and photolytical degradation of branched photo-responsive poly(acrylic acid) and polystyrene using free radical polymerization of acrylic acid/styrene in the presence of a newly synthesized asymmetric o-nitrobenzyl-based crosslinker and different amounts of dodecanethiol (DDT) as a chain transfer agent.

Facile photo-flow synthesis of branched poly(butyl acrylate)s

2017 ◽  
Vol 2 (4) ◽  
pp. 479-486 ◽  
Author(s):  
O. Eckardt ◽  
B. Wenn ◽  
P. Biehl ◽  
T. Junkers ◽  
F. H. Schacher
Keyword(s):  
Free Radical ◽  
Propylene Glycol ◽  
Radical Polymerization ◽  
Butyl Acrylate ◽  
Chain Transfer ◽  
Free Radical Polymerization ◽  
Chain Transfer Agent ◽  
Flow Synthesis ◽  
Glycol Diacrylate ◽  
A Chain

We present the synthesis of branched poly(butyl acrylate)s using photo-induced free radical polymerization of (n/t)-butyl acrylate in the presence of tri(propylene glycol) diacrylate (TPGDA) as a crosslinker and varying amounts of dodecanethiol (DDT) as a chain transfer agent to prevent macroscopic gelation.

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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