Synthesis of poly(methyl methacrylate-g-glycidyl azide) graft copolymers using N, N-dithiocarbamate-mediated iniferters

✍ Scribed by Khalifa Al-Kaabi; Albert J. Van Reenen

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 244 KB
• Volume: 114
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.30522

✦ Synopsis

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 (NaN~3~) 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 (M~w~/M~n~) 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. J Appl Polym Sci, 2009