THERMALLY STABLE SILICON-CONTAINING RESINS FOR DIELECTRIC APPLICATIONS. Quarterly Progress Report No. 1 for December 1, 1959-February 29, 1960

Technical Report · Tue Mar 01 04:00:00 EST 1960

OSTI ID:4172647

Breed, L W; Haggerty, Jr, W J

Dichelates formed from titanium esters and acetylacetone were found to undergo liquid-phase thermal decomposition at 130 to 170 deg C with the destruction of the chelate ring and the formation of an organic ester. Dichelates prepared frorri titanium esters and 8-quinolinol reacted with acetoxysilanes to yield near quantitative amounts of the expected organic ester. Hexamethyldisiloxane did not react with either bis(2-oxy-2-pentene-4-one) titanium oxide or isopropoxide. There is evidence that the isopropoxide and trimethylethoxysilane form a siloxytitaneThe procedure of ester elimination for the formation of siloxanes appeared to be analogous to the well-known alkyl halide method. Considerable redistribution occured and only the siloxanes derived from the monofunctional silicon compounds present were obtained in good yields. p-Phenylenebis (diethoxymethylsilane) and glacial acetic acid did riot give the siloxane polyol as previously reported. When other experimental monomers were hydrolyzed with aqueous hydrochloric acid, only p-phenylenebis (diethoxyp-dimethylaminophenyisilane) showed significant carbon-silicon cleavage. (See also NP-8018.) (auth)

• Research Organization: Midwest Research Inst., Kansas City, Mo.
• NSA Number: NSA-14-013715
• OSTI ID: 4172647
• Report Number(s): NP-8650
• Country of Publication: United States
• Language: English

Related Subjects

ACETIC ACID
ACETONE
ALCOHOLS
CHELATES
CHEMISTRY
DECOMPOSITION
DIELECTRICS
ESTERS
HEATING
HETEROCYCLICS
HYDROCHLORIC ACID
HYDROLYSIS
HYDROXIDES
ORGANIC NITROGEN COMPOUNDS
ORGANOMETALLICS
PENTANE
POLYMERS
PREPARATION
QUINOLINE
RESINS
SILANES
SILICON
SILICONES
STABILITY
TEMPERATURE
TITANIUM
TITANIUM COMPOUNDS
USES
WATER