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Thermal properties of tetraalkoxysilanes
Author(s) -
Alagar M.,
Krishnasamy V.
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280361206
Subject(s) - thermal conductivity , thermodynamics , atmospheric temperature range , thermal stability , thermal , thermal expansion , pyridine , materials science , specific heat , liquid phase , range (aeronautics) , chemistry , organic chemistry , physics , composite material
Abstract Tetraalkoxysilanes were prepared by reacting SiCl 4 with alcohols in the liquid phase in the presence of pyridine. Based on the experimental evidence and theoretical calculations, tentative structures have been proposed. Thermal conductivity measurements for these samples were done over a temperature range 303–463 K and the data are compared with the theoretical values derived from empirical equations. In addition, other properties such as specific heat ( C p ), thermal expansion (α) and oxidation stability were determined and the values are compared with the reported values for polymethy Isiloxanes.