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Novel Carboxy Functionalized Sol-Gel Precursors
Published online by Cambridge University Press: 10 February 2011
Abstract
A novel family of inorganic-organic copolymers (ORMOCER*s) derived from urethaneand thioether(meth)acrylate alkoxysilanes has been successfully exploited for a variety of diverse applications. In order to widen the range of applications an additional functionality (carboxy group) has been incorporated in this silane type. Conventional sol-gel processing facilitates the formation of an inorganic “Si-O-Si”-network via hydrolysis and polycondensation reactions of alkoxysilyl moieties and in addition, the (meth)acrylate groups are available for radically induced polymerization to obtain a complementary organic polymeric structure. The presence of a carboxy group would appear to have great potential for a range of diverse areas of application, such as an internal catalyst for the sol-gel process, complexation of elements such as Zr and Ti, increasing the adhesion to various substrates and modification of solubility. A number of novel silanes and their syntheses will be described in this paper.
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- Copyright © Materials Research Society 1996
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