Polymerization And Characterization Of N-vinyl-2-pyrrolidone

Description

N-vinyl-2-pyrrolidone, NVP, was polymerized by &amp / #56256 / &amp / #56394 / -radiation in the presence of atmospheric oxygen and under vacuum at different periods. Polymerization also conducted by using chemical initiator, &amp / #56256 / &amp / #56466 / -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&amp / #56256 / &amp / #56394 / 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.

Links & Downloads

1. http://etd.lib.metu.edu.tr/upload/12611238/index.pdf

Tags

QD Polymers, Macromolecules 380-388

Additional Fields

Identifer	oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12611238/index.pdf
Date	01 November 2009
Creators	Altinsoy, Sule
Contributors	Usanmaz, Ali
Publisher	METU
Source Sets	Middle East Technical Univ.
Language	English
Detected Language	English
Type	M.S. Thesis
Format	text/pdf
Rights	To liberate the content for public access