title: Rapid synthesis of a versatile organic/inorganic hybrid material based on pyrogenic silica.
abstract: An efficient approach has been developed to synthesize a new versatile organo-silica material by non-conventional method (microwave irradiation and ultrasonic vibration) from amorphous pyrogenic silica and has been compared with thermic procedure. The samples were fully characterized by FTIR, solid-state (29)Si and (13)C CP/MAS NMR, thermogravimetric analysis (TGA), elemental analysis, scanning electron microscopy (SEM) and by N(2)-sorption isotherms measurements. The functionalization of silicon dioxide by 4-(chloromethylphenyl) trichlorosilane has been easily achieved by ultrasound irradiation in a very short time with high loading of organic fragments. Significant different sizes of pores were observed according to conventional or non-conventional synthesis procedure. In addition, new structural properties have been created with the emergence of a mesoporosity.
authors.affiliation: Univ. Lille Nord de France, F-59000 Lille, France.
authors.forename: M
authors.initials: M
authors.lastname: Becuwe
authors.forename: F
authors.initials: F
authors.lastname: Cazier
authors.forename: P
authors.initials: P
authors.lastname: Woisel
authors.forename: D
authors.initials: D
authors.lastname: Landy
authors.forename: F
authors.initials: F
authors.lastname: Delattre