Dichlorodimethylsilane → HCID 131716978, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 300ml of ortho-dichlorobenzene, 24.2 grams (0.100 mole) of tetramethylbiphenol, 0.061 gram (0.0005 mole) of 2,6-xylenol and 21.8 grams (0.215 mole) of triethylamine was heated under a nitrogen atmosphere at 80° C. and 12.89 grams (0.100 mole) of dimethyldichlorosilane was added over a 10 minute period. The reaction mixture was then cooled and poured into 2,000 ml. of isopropanol to effect precipitation of product. There was obtained a white fibrous solid which was reslurried with 2,000 ml. of isopropanol. The product was then collected and pressed free of solvent with a dental dam. The product was then dried in a vacuum oven at 130° C. for 3 days. There was obtained 27.6 grams (92.6% yield) of a poly (dimethylsilyloxytetramethylbiphenyleneoxide) having a molecular weight of M(W)43,000. The polymer was molded in accordance with the method of Example 1. There was obtained a transparent tough film useful as a flame retardant dielectric material.

Provenance & Evidence