Accession Number : AD0752262

Title :   Solution Properties of Poly(trimethyl siloxanotitanoxanes) (Titanium Oxide Trimethylsilyloxides),

Corporate Author : UNIVERSITY OF WESTERN ONTARIO LONDON DEPT OF CHEMISTRY

Personal Author(s) : Jones,D. E. G. ; Lorimer,J. W.

Report Date : 29 SEP 1971

Pagination or Media Count : 12

Abstract : To obtain more information on the structure of the polymeric hydrolysis products of Ti(OSiMe3)4, (the titanium oxide trimethylsilyloxides), measurements were made of the degrees of polymerization and hydrolysis, sedimentation, viscosity, specific volume, refractive index, increment and turbidity of five hydrolysis products in cyclohexane solution. Refractive increments and turbidities were also measured for two products in carbon tetrachloride, benzene, chlorobenzene and bromobenzene. A self-consistent description of the properties of these polymers is based on repeating units containing a cube-shaped Ti8O12 structure. These units undergo condensation to give two types of chains having one and two bridging oxygens, respectively, between successive repeating units. Evidence for this model is obtained from the interdependence of degrees of polymerization and hydrolysis, from sedimentation, and from the dependence of turbidity on the refractive index of the solvent. (Author)

Descriptors :   (*INORGANIC POLYMERS, *TITANIUM COMPOUNDS), (*HYDROLYSIS, TITANIUM COMPOUNDS), SILICON COMPOUNDS, MOLECULAR STRUCTURE, POLYMERIZATION, REFRACTIVE INDEX, VISCOSITY, ORGANIC SOLVENTS, OXIDES, CANADA, SOLUTIONS(MIXTURES)

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE