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Macroradical initiated polymerisation of acrylic and methacrylic monomers

✍ Scribed by Irene Mijangos; António Guerreiro; Elena Piletska; Michael J. Whitcombe; Kal Karim; Iva Chianella; Sergey Piletsky

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
788 KB
Volume
32
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

An approach has been developed for the grafting of monomers onto poly(trimethylolpropane trimethacrylate) (polyTRIM) particles using 2,2‐diethyl dithiocarbamic acid benzyl ester (DDCABE) as an initiator. A set of polymers was prepared with this technique over different lengths of time and the kinetics of the reaction studied experimentally. It was found that the grafting of initiator to the polymeric support followed a second order reaction, while the subsequent addition of monomers from solution into the polyTRIM macroradicals followed a first order reaction. The living nature of the iniferter modified macroradicals permits easy consecutive grafting of multiple polymeric layers, allowing straightforward functionalisation of particles. However, the effectiveness of the grafted initiator decreased with each cycle of polymerisation. This technique can be used for a wide range of applications in analytical and biochemistry.

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