文档介绍：Current Opinion in Solid State and Materials Science 4 (1999) 571–580
Synthesis, properties and applications of anic copolymers
(ORMOCER s)
Karl-Heinz Haas* , Herbert Wolter
Fraunhofer-Institut f ur¨¨ Silicatforschung, Neunerplatz 2, D-97082 Wurzburg, Germany
Abstract
Hybrid anic polymers based anically modified heteropolysiloxanes have found widespread attention and application
as materials with adjustable properties using tailor-made precursors. The chemical structures of monomers and their modified sol-gel
processing method are described. An overview is given for the control of various properties (mechanical, electrical, optical) of the
materials on a molecular scale. essful material developments and industrial applications are described. 2000 Elsevier Science
Ltd. All rights reserved.
1. Introduction materials [3] with strong covalent bonds between anic
anic moieties. During sol–gel processing of
Organic copolymers – defined as polymers derived from ORMOCER s the work is formed first and
more than one species of monomer – have found wide- anic crosslinking is the final curing step. The basic
spread applications as polymer materials. The basic idea structural elements of ORMOCER s are shown in Fig. 2.
behind the formation of copolymers is that properties The precursors used for these posites can
superior to homopolymers can be achieved. As sil