Diphenylsiloxane oligomers functionalized at both terminal and m

Details Diphenylsiloxane oligomers functionalized at both terminal and m Diphenylsiloxane oligomers functionalized at both terminal and m

1995-03-14

1996-03-26

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556451, C07F 708

Patent

active

055022294

ABSTRACT:
There is disclosed a diphenylsiloxane oligomer functionalized at both terminals, and methods for the preparation thereof, said oligomer having the following general formula G-(OSi(Ph).sub.2).sub.m O--G wherein Ph denotes a phenyl radical, m is 3 to 50 and G is has a formula independently selected from the group consisting of ##STR1## in which R.sup.1 is independently selected from the group consisting of hydrogen and a monovalent hydrocarbon group having 2 to 8 carbon atoms, said monovalent hydrocarbon group excluding phenyl, tolyl, xylyl, and ethylphenyl radicals, R is independently selected from the group consisting of R.sup.1, methyl radical and phenyl radical, Q is a divalent hydrocarbon group and n is an integer having a value of 1 to 3.

REFERENCES:
patent: 3655713 (1972-04-01), LeGrow
patent: 3719696 (1973-03-01), Jonas et al.
patent: 4831169 (1989-05-01), Grape et al.
patent: 5319121 (1994-06-01), Blum
Journal of the Chemical Society of Japan, Industrial Chemistry, Section, vol. 62, p. 1421 (1959).

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