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Synthesis and Functionalization of a New Kind of Silica Particle
Author(s) -
Giesenberg Thomas,
Hein Sebastian,
Binnewies Michael,
Kickelbick Guido
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200454089
Subject(s) - surface modification , amorphous silica , particle (ecology) , chlorine , amorphous solid , chlorine atom , ball (mathematics) , gas phase , materials science , surface (topology) , chemical engineering , nanotechnology , chemistry , organic chemistry , engineering , metallurgy , geology , mathematics , geometry , oceanography , medicinal chemistry
Like a chlorinated golf ball aptly describes a new kind of chlorosiloxane particle (Si x O y Cl z , CSN; see picture). Under suitable conditions they are formed by the reaction between SiCl 4 and O 2 in the gas phase. The surface of these spherical, amorphous particles is densely covered by chlorine atoms. These can be substituted by nearly any group. Thus, the surface of the particles can be customized for the particular purpose.