Pendant vinyl group reactivity during the free-radical copolymerization of methyl methacrylate and ethylene glycol dimethacrylate

1994 ◽  
Vol 33 (6) ◽  
pp. 665-672 ◽  
Author(s):  
Oguz Okay ◽  
Hamid J. Naghash
Keyword(s):  
Free Radical ◽  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Radical Copolymerization ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate ◽  
Free Radical Copolymerization ◽  
Vinyl Group

Free-radical cross-linking copolymerization of methyl methacrylate and ethylene glycol dimethacrylate in the presence of trimethoxyvinylsilane

2008 ◽  
Vol 69 (4) ◽  
pp. 992-999 ◽  
Author(s):  
Hamid Javaherian Naghash ◽  
Sanaz Abbasi Dineh Kabudi ◽  
Ahmad Reza Momeni ◽  
Ahmad Reza Massah ◽  
Hamid Aliyan
Keyword(s):  
Free Radical ◽  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Ethylene Glycol Dimethacrylate ◽  
Cross Linking ◽  
Glycol Dimethacrylate

Cyclohexyl Methacrylate with Tetra (Ethylene Glycol) Dimethacrylate in Tertahydrofuran Radical Copolymerization

2009 ◽  
Vol 609 ◽  
pp. 63-67 ◽  
Author(s):  
Asmahane Fasla ◽  
Seghier Ould Kada ◽  
Zoubida Seghier ◽  
Alain Périchaud
Keyword(s):  
Ethylene Glycol ◽  
Specific Activity ◽  
13C Nmr Spectroscopy ◽  
Radical Copolymerization ◽  
Ethylene Glycol Dimethacrylate ◽  
Random Copolymers ◽  
Glycol Dimethacrylate ◽  
Free Radical Copolymerization ◽  
Tetrahydrofuran Solution ◽  
Cyclohexyl Methacrylate

Free-radical copolymerization of cyclohexyl methacrylate (CHMA) and tetra (ethylene glycol) dimethacrylate (TtEGDMA) were carried out at 60 °C in tetrahydrofuran solution in presence of 2,2-azobisisobutyronitrile. The random copolymers were prepared with nominal crosslinking ratios, X of 1, 5 and 10% mol TtEGDMA / mol CHMA. The copolymers were characterized by 13C NMR spectroscopy. The copolymers was characterized by 13C RMN analysis and determined the copolymers composition. The monomer reactivity ratios r1 (TtEGDMA) and r2 (CHMA) were determined with the linearized copolymerization equations of the Fineman–Ross methods (r1 = 1.77 and r2 = 0.48) and Kelen–Tüdös (r1 = 1.81 and r2 = 0.46). Parameters of Alfrey-Price Q1 = - 1.10 (specific activity) and e1= - 0.64 (polarity) for TtEGDMA.

Sign in / Sign up

Export Citation Format

Share Document