Synthesis of poly(methyl methacrylate-g-glycidyl azide) graft copolymers using N, N-dithiocarbamate-mediated iniferters
Date
2009
Authors
Al-Kaabi K.
Van Reenen A.J.
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Abstract
A glycidyl azide polymer with pendent N, N-diethyl dithiocarbamate groups (GAP-DDC) was prepared by the reaction of poly(epichlorohydrin) (PECH) with pendent N, N-diethyl dithiocarbamate groups (PECH-DDC) and sodium azide (NaN3) in dimethylformamide (DMF). It was then used as a macro-photoinitiator for the graft polymerization of methyl methacrylate (MMA). Photopolymerization was carried out in a photochemical reactor at a wavelength greater than 300 nm. Conversion was determined gravimetrically and first-order time conversion plot for the polymerization system showed linear increase with the polymerization time indicating that polymerization proceed in controlled fashion. The molecular weight distribution (Mw/Mn) was in the range of 1.4-1.6 during polymerization. The formation of poly(methyl methacrylate- g-glycidyl azide) (PMMA-g-GAP) graft copolymer was characterized by gel permeation chromatography, FT-IR spectroscopy, Thermogravimetric analysis, and differential scanning calorimetry. © 2009 Wiley Periodicals, Inc.
Description
Keywords
Azide polymers, Dithiocarbamates, First-order, FTIR spectroscopy, Glycidyl azide polymer, Graft polymerization, Iniferters, Macrophotoinitiator, Macrophotoinitiators, Methyl methacrylates, Photo-initiator, Photochemical reactor, Polyepichlorohydrin, Polymerization systems, Polymerization time, Sodium azide, Chromatographic analysis, Copolymerization, Differential scanning calorimetry, Dimethylformamide, Esters, Gels, Graft copolymers, Grafting (chemical), Infrared spectroscopy, Molecular weight distribution, Organic solvents, Photopolymerization, Polyacrylates, Sodium, Synthesis (chemical), Thermogravimetric analysis, Acrylic monomers, chemical reaction, chromatography, graft copolymer, polymer blend, polymerization, synthesis
Citation
Journal of Applied Polymer Science
114
1
114
1