Free radical copolymerization of N ,N -dimethylaminoethyl methacrylate with styrene and methyl methacrylate: monomer reactivity ratios and glass transition temperatures

2009 ◽  
Vol 58 (9) ◽  
pp. 1014-1022 ◽  
Author(s):  
Ivana Šoljić ◽  
Ante Jukić ◽  
Zvonimir Janović
Keyword(s):  
Glass Transition ◽  
Free Radical ◽  
Methyl Methacrylate ◽  
Radical Copolymerization ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios ◽  
Free Radical Copolymerization ◽  
Glass Transition Temperatures ◽  
Methacrylate Monomer ◽  
Methyl Methacrylate Monomer

scholarly journals Radical copolymerization of styrene and acrylonitrile in the presence of oligooxyethylene azoester

e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
Ewa Wiśniewska ◽  
Barbara Pabin–Szafko
Keyword(s):  
Differential Scanning Calorimetry ◽  
Glass Transition ◽  
Free Radical ◽  
Radical Copolymerization ◽  
Copolymer Composition ◽  
Hydroxyl Groups ◽  
Reactivity Ratios ◽  
Scanning Calorimetry ◽  
Free Radical Copolymerization ◽  
Glass Transition Temperatures

AbstractTelechelic vinyl oligomers terminated with hydroxyl groups were prepared by free radical copolymerization of styrene (S) and acrylonitrile (AN), initiated by azoester-2,2’-azobis[2-methyl-ω-hydroxy-oligo(oxyethylene) propionate] [AIB-OOE(400)], carried out in N,N-dimethylformamide. The reactivity ratios rS=0,225 and rAN=0,722 for styrene and acrylonitrile, respectively, were evaluated by Kelen-Tüdős method. The glass transition temperatures (Tg) of the copolymers were determined by differential scanning calorimetry. Tg values varied with the copolymer composition in the range of 60-82 °C and the maximum Tg value was obtained for copolymer with 60 mol% AN.

A Generalized Least Square Model for the Determination of Monomer Reactivity Ratios in Free Radical Copolymerization Systems

2003 ◽  
Vol 12 (23) ◽  
pp. 184-195 ◽  
Author(s):  
Ali Habibi ◽  
Ebrahim Vasheghani-Farahani ◽  
Mohamad A. Semsarzadeh ◽  
Kambiz Sadaghiani
Keyword(s):  
Free Radical ◽  
Radical Copolymerization ◽  
Least Square ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios ◽  
Free Radical Copolymerization

Monomer reactivity ratios for lauryl methacrylate-isobutyl methacrylate in bulk free radical copolymerization

2003 ◽  
Vol 52 (9) ◽  
pp. 1434-1443 ◽  
Author(s):  
A Habibi ◽  
E Vasheghani-Farahani ◽  
MA Semsarzadeh ◽  
K Sadaghiani
Keyword(s):  
Free Radical ◽  
Radical Copolymerization ◽  
Reactivity Ratios ◽  
Monomer Reactivity Ratios ◽  
Free Radical Copolymerization
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