Accession Number : AD0615819

Title :   A NEW SERIES OF ORGANOBORANES. VII. THE PREPARATION OF POLY-M-CARBORANYLENESILOXANES,

Corporate Author : OLIN MATHIESON CHEMICAL CORP NEW HAVEN CONN

Personal Author(s) : Papetti,S. ; Schaeffer,B. B. ; Gray,A. P. ; Heying,T. L.

Report Date : JUN 1965

Pagination or Media Count : 24

Abstract : The following meta-carboranylene backboned polysiloxanes were obtained by ferric chloride catalyzed polymerizations: (-Si(CH3)2CB10H10CSi(CH3)2O-) from 1,7-bis(chlorodimethylsilyl)m-carborane plus bis (methoxydimethylsilyl)m-carborane; (I); (-Si(CH3)2CB10H10CSi(CH3)2OSi(CH3)2O-) from dichlorodimethylsilane (II) plus I; (-Si(CH3)2CB10H10CSi(CH3)2OSi(CH3)2OSi(CH3)2O-) from a dimer of II plus I; (Si(CH3)2CB10H10Si(CH3)2OSi(CH3)2OSi(CH3)2O-) from dilitho-m-carborane plus dichlorotetramethyldisiloxane. These compounds, and a number of substitution products thereof, were examined by X-ray diffraction and their thermal and oxidative behavior were studied by differential calorimetry.

Descriptors :   (*ORGANOBORANES, POLYMERIZATION), (*SILOXANES, POLYMERIZATION), (*HEAT RESISTANT MATERIALS, SILOXANES), POLYMERS, PREPARATION, CATALYSTS, IRON COMPOUNDS, CHLORIDES, X RAY DIFFRACTION, THERMAL PROPERTIES, STABILITY, OXIDATION, INFRARED SPECTRA

Distribution Statement : APPROVED FOR PUBLIC RELEASE