Copolymers of N-vinylcarbazole and ethyl iodide quarternized dimethylaminoethyl methacrylate

✍ Scribed by I. Sideridou-Karayannidou; G. Seretoudi

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 135 KB
• Volume: 68
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/(sici)1097-4628(19980531)68:9<1517::aid-app14>3.0.co;2-w

✦ Synopsis

Copolymers of N-vinylcarbazole (NVC) and the quarternary salt of N,Ndimethylaminoethyl methacrylate with ethyl iodide (DMAEMArEI) were prepared by free-radical copolymerization in dimethyl sulfoxide at 70ЊC using a,a-azobisisobutyronitrile (AIBN) as an initiator. The reactivity ratios of both monomers were determined according to the general copolymerization equation using the extended Kelen-Tu ¨do ¨s method and found to be r 1 Å 0.12 ( {0.04) and r 2 Å 0.84 ( {0.08). Copolymers were characterized by viscosity measurements and thermogravimetric analysis (TGA). Copolymers containing DMAEMArEI higher than 60 mol % were water-soluble. ᭧ 1998