Health & Environmental Research Online (HERO)


Print Feedback Export to File
1966734 
Journal Article 
Modification of Silica Nanoparticles by Grafting of Copolymers Containing Organosilane and Fluorine Moities 
Pardal, F; Lapinte, V; Robin, JJ 
2009 
Yes 
Journal of Polymer Science. Part A, Polymer Chemistry
ISSN: 0887-624X
EISSN: 1099-0518 
WILEY 
HOBOKEN 
47 
18 
4617-4628 
WOS:000269632500013 
The free-radical cotelomerization of 3-(trimethoxysilyl)propyl methacrylate (TMSPMA) with 1,1,2,2-tetrahydroperfluorodecyl acrylate (PFDA) in the presence of 2-mercaptoethanol was performed at 80 degrees C in acetonitrile. Hydroxy endgroups of the cotelomers were reacted with 2-isocyanatoethyl methacrylate to give macromonomers. The P(TMSPMA-stat-PFDA) cotelomers, containing fluoro and silane groups, were then grafted onto silica nanoparticles. Optimal grafting conditions were found with TMSPMA monomer alone in toluene at 110 degrees C. The structure of the modified silica was analyzed by FTIR and (29)Si solid-state NMR. The amount of grafted TMSPMA or P(TMSPMA-stat-PFDA) was calculated by thermogravimetric and elemental analyzes. The grafting yield increased with the copolymer/silica weight ratio until a maximum value of 2.26 mu mol/m(2). (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 4617-4628, 2009 
cotelomerization; fluoropolymers; grafting onto; hybrid nanoparticle; silica nanocomposite; 1,1,2,2-tetrahydroperfluorodecyl acrylate