New supported-catalytic systems for atom transfer radical polymerization

- ATRP was studied using new well-defined functional copolymers (poly(S-co-VBC) - modified by DIPA as macroligands.
- New macroligands were successfully synthesized and used for the homogeneous ATRP of methyl methacrylate and styrene.
- We also investigated the use of silica-supported macroligand in heterogeneous ATRP.

The atom transfer radical polymerization (ATRP) was studied using new well-defined functional copolymers (poly(styrene-co-vinylbenzyl chloride) - Poly(S-co-VBC)- modified by di(2-picolyl)amine) as macroligands. Poly(S-co-VBC) copolymers with various proportions of VBC monomer were prepared either by free radical polymerization or by nitroxide-mediated polymerization using a commercially available alkoxyamine (BlocBuilder®). Macroligands were further obtained by post-modification of poly(S-co-VBC) by di(2-picolyl)amine (DIPA) and were then successfully used for the homogeneous ATRP of methyl methacrylate and styrene. We also investigated the ATRP in heterogeneous conditions with the macroligand being supported onto silica Stöber nanoparticles.

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