Synthesis and spectroscopic characterization of superparamagnetic beads of copolymers of methacrylic acid, methyl methacrylate and ethylene glycol dimethacrylate and their application to protein separation

2007 ◽  
Author(s):  
Gülay Bayramo??lu ◽  
M Yakup Arıca
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Methacrylic Acid ◽  
Protein Separation ◽  
Spectroscopic Characterization ◽  
Ethylene Glycol Dimethacrylate ◽  
Glycol Dimethacrylate ◽  
Superparamagnetic Beads ◽  
Acid Methyl

Characterization of Pyrazoline Organic Nanoparticles Encapsulated with Poly(Methyl Methacrylate-co-Ethylene Glycol Dimethacrylate) for Color Electronic Paper

2006 ◽  
Vol 965 ◽  
Author(s):  
Hyo Sim Kang ◽  
Sun Wha Oh ◽  
Young Soo Kang
Keyword(s):  
Ethylene Glycol ◽  
Methyl Methacrylate ◽  
Electrophoretic Mobility ◽  
Ethylene Glycol Dimethacrylate ◽  
Aqueous Alcohol ◽  
Glycol Dimethacrylate ◽  
Organic Nanoparticles ◽  
Poly Methyl Methacrylate ◽  
Electronic Paper ◽  
Electronic Ink

ABSTRACT1-Phenyl-3-naphthyl-5-((dimethylamino)phenyl)-2-pyrazoline with different diameters of 40 - 190 nm were prepared by the reprecipitation method and polymerized with poly(methyl methacrylate-co-ethylene glycol dimethacrylate) using cationic surfactants for full color electronic paper, which is expected to substitute for the future display. The electronic ink particles of pyrazoline organic nanoparticles polymerized by poly(methylmethacrylate-co-ethylene glycol dimethacrylate) were prepared and monodispersed successfully in aqueous alcohol medium. The size of mono-dispersed electronic ink particles is from 160 to 550 nm. The ink particle size was found to decrease with increasing concentration of the surfactant. The effect of surfactant was significant. The appropriate additions of surfactants result in an increase in electrophoretic mobility. The electrophoretic mobility of the resulting electronic inks was −7.5 to −3.6 × 10−5 cm2/ V·s in the presence of surfactants.

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