Controlled Living Radical Polymerization: Progress in ATRP by Krzysztof Matyjaszewski

By Krzysztof Matyjaszewski

This ebook is concentrated on contemporary growth within the dynamically constructing box of controlled/living radical polymerization. it's a sequel to ACS Symposium sequence 685, 768, 854, and 944 and includes 26 chapters on mechanistic, artificial and fabrics points of ATRP.

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Extra info for Controlled Living Radical Polymerization: Progress in ATRP (Acs Symposium Series)

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The structures of obtained polymers, poly(o-xylylene)s, were identical with those formed by the C-C bond cleavage of cyclobutene ring, and therefore, the polymerization process can be regarded as R-ROP of benzocyclobutenes. Introduction of a substituent on the cyclobutene ring can lower the isomerization rate. In the presence of TEMPO, the formed polymer reinitiated the polymerization of styrene to afford the corresponding block copolymer (36). Figure 14. Radical ring-opening polymerization of benzocyclobutane derivatives.

Polym. J. 2006, 42, 1934-1938. 49. Whiney, R. ; Calvin, M. J. Chem. Phys. 1955, 23, 1750-1756. 50. ; Hay, A. S. Macromolecules 1997, 30, 2527-2531. 51. ; Hall, H. ; Padias, A. B. Macromolecules 1993, 26, 1199-1205. 52. Chen, X. ; Padias, A. ; Hall, H. , Jr. Macromolecules 2001, 34, 35143516. 53. Naka, K. Polym. J. 2008, 40, 1031-1041. jp Electron Spin Resonance (ESR) spectroscopic studies directed at clarifying the fundamentals of radical polymerizations have been conducted. A combination of ESR and atom transfer radical polymerization (ATRP) provided significant new information on the reactivity and dynamics of propagating radicals in radical polymerizations.

37 Figure 5. Radical ring-opening cyclization copolymerization of 1,1bis(ethoxycarbonyl)-2-vinylcyclopropane with methyl methacrylate. Emulsion polymerization possesses considerable processing advantages over bulk, suspension, and solution polymerization. We investigated the radical ring-opening emulsion polymerization behavior of ECVCP (3). ECVCP successfully underwent emulsion polymerization to give particle-shaped polymer with unimodal particle size distribution. This is the first example of radical ring-opening emulsion polymerization of vinylcyclopropane derivatives.

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