Living characteristics of the free-radical ring-closing polymerization of diallyldimethylammonium chloride

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Blinco, James P. ; Greiner, Andreas ; Barner-Kowollik, Christopher ; Agarwal, Seema:
Living characteristics of the free-radical ring-closing polymerization of diallyldimethylammonium chloride.
In: European Polymer Journal. Bd. 47 (2011) Heft 1 . - S. 111-114.
ISSN 1873-1945
DOI: https://doi.org/10.1016/j.eurpolymj.2010.10.025

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Abstract

In this communication we provide the most recent results on RAFT-mediated ring-closing polymerization of diallyldimethylammonium chloride (DADMAC) The polymerization was carried out in aqueous solution employing 2 2`-azobis(2-methylpropionamidine)-dihydrochloride as the free radical initiator and trithiocarbonate RAFI' agent (2-{[(dodecylsulfanyl)carbonothioyl sulfanyl]}propanoic acid DoPAT) as the controlling RAFT agent The results show that - while the system is not as completely controlled as previously described - it is nevertheless possible to mediate the polymerization of DADMAC and impart some living characteristics onto the system The initial study on the RAFT-mediated polymerization of DADMAC may have overestimated the degree of livingness within this reaction However it is possible - at low conversions - for some living characteristics to be observed as the evolution of molecular weight with conversion is linear In addition polymers with a reasonably narrow polydispersity can be Isolated (c) 2010 Elsevier Ltd All rights reserved