Controlled radical polymerization of poly(methyl methacrylate-g- epichlorohydrin) using N,N-dithiocarbamate-mediated iniferters
Date
2008
Authors
Al-Kaabi K.
Van Reenen A.J.
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Abstract
Poly(epichlorohydrin) (PECH) with pendent N,N-diethyl dithiocarbamate groups (PECH-DDC) was prepared by reaction of PECH with sodium N,N-diethyl dithiocarbamate (DDC) in anhydrous ethanol, before being used as a macrophotoinitiator for the graft polymerization of methyl methacrylate. Photopolymerization was carried out in a photochemical reactor at a wavelength greater than 300 nm. Controlled radical polymerization was confirmed by the linear increase of the molecular weight of polymers with conversion. The polydispersity remained at 1.4-1.6 during polymerization. The formation of PMMA-g-PECH copolymer was characterized by GPC, 1H-NMR, FTIR spectroscopy, and DSC. © 2008 Wiley Periodicals, Inc.
Description
Keywords
Cationic polymerization, Ethanol, Molecular weight, Photopolymerization, Polymethyl methacrylates, Dithiocarbamate, Iniferters, Macrophotoinitiators, Graft copolymers, copolymerization, graft copolymer, molecular weight, polymethyl methacrylate, reactor
Citation
Journal of Applied Polymer Science
108
4
108
4