Method for preparing alpha, omega-dihydroxyperfluoroalkylethylme

Details Method for preparing alpha, omega-dihydroxyperfluoroalkylethylme Method for preparing alpha, omega-dihydroxyperfluoroalkylethylme

1992-08-31

1993-08-03

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 23, 528 42, 556488, C08G 7706

Patent

active

052330052

ABSTRACT:
Alpha, omega-dihydroxyperfluoroalkylethylmethylpolysiloxanes are prepared by reacting zinc oxide with a perfluoroalkylethylmethyldichlorosilane in an organic solvent, followed by the addition of water and protic acid with stirring to the resulting reaction mixture to generate the silanol group at the molecular chain terminals of the resultant polysiloxane. The advantage of the present method is the negligible yield of the corresponding cyclic polyorganosiloxanes.

REFERENCES:
patent: 2629725 (1953-02-01), Hyde
Journal of Organic Chemistry, (1960) vol 25, No. 2 pp. 310-311.

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