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Sheet and Tube Organosilicon Polymers

Published online by Cambridge University Press:  10 February 2011

D. E. Katsoulist ,
T. C.-S. Chaot ,
E. A. McQuistont ,
Chenggang Chen ,
Malcolm E. Kenney ,
B. Claflin ,
G. Lucovsky ,
B. Claflin  and
G. Lucovsky
D. E. Katsoulist
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
T. C.-S. Chaot
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
E. A. McQuistont
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
Chenggang Chen
Affiliation:
Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106
Malcolm E. Kenney
Affiliation:
Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106
B. Claflin
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
G. Lucovsky
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
B. Claflin
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
G. Lucovsky
Affiliation:
Dow Coming Corporation, Midland, Michigan 48686
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Abstract

Reaction of chlorosilanes with sheet silicates, such as the naturally occurring apophyllite, [Ca4Si8O2O(F, OH).8H2O] results in the formation of sheet organofunctional siloxane polymers. Similarly, reaction of chlorosilanes with the tube silicate K2CuSi4O10results in the formation of tube organofunctional siloxane polymers. Representative polymers have been characterized by XRD, KR, XPS and solid state 29Si NMR. The interlayer spacing of the sheet polymers varies with the type of the group pendent on the sheet. When the organofunctional pendent groups of the sheet polymers contain reactive sites, further reactivity can be demonstrated with heterogeneous reactions such as hydrosilation. The sheet polymers behave as very effective thickeners of siloxane fluids. Dispersions of them in siloxane fluids exhibit thixotropic properties. The organosilicon polymers have the potential to show useful chemical, thermal, rheological and mechanical properties

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 519: Symposium O – Organic/Inorganic Hybrid Materials , 1998 , 321
Copyright
Copyright © Materials Research Society 1998

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