Polymerization and characterization of N-vinyl-2-pyrrolidone

Altınsoy, Şule
N-vinyl-2-pyrrolidone, NVP, was polymerized by {u10004A}-radiation in the presence of atmospheric oxygen and under vacuum at different periods. Polymerization also conducted by using chemical initiator, {u100092}-Azoisobutyronitrile, AIBN, in bulk at different temperatures and times. The activation energy for polymerization was found from Arrhenius plot as 31,8 kJ/mol. By using the Fox-Flory equation T{u10004A} and k values calculated for each polymerization methods. The polymer obtained was white gel type. The different types of polymer obtained were investigated by FT-IR, 1H-NMR and 13C-NMR, DSC, TGA and viscosity measurement methods. According to the FT-IR and NMR results, the polymerizations proceeded via vinyl group. As expected, solution viscosity measurements and DSC results showed that the glass transition temperature of polymer increases with increasing molecular weight.
Citation Formats
Ş. Altınsoy, “Polymerization and characterization of N-vinyl-2-pyrrolidone,” M.S. - Master of Science, Middle East Technical University, 2009.