Allylalkylpolysiloxane type silicone fluids and methods of making them
The present invention relates to novel cyclic or linear allylpolysiloxane type silicone fluids having allylalkylsiloxy and diorganosiloxy groups as represented by the formula I and their preparation methods by hydrolyzing mixtures of allyldichlorosilane and diorganodichlorosilane as represented by t...
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Zusammenfassung: | The present invention relates to novel cyclic or linear allylpolysiloxane type silicone fluids having allylalkylsiloxy and diorganosiloxy groups as represented by the formula I and their preparation methods by hydrolyzing mixtures of allyldichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. formula I formula II' formula III wherein R is selected from the group consisting of hydrogen alkyl(C3-C20), chloroalkyl, cyanoalkyl, fluoroalkyl, and phenylalkyl group; Rx and R2 represent independentlhydrogen, methyl or phenyl group; M represents H or SiMe3 group wherein Me is methyl group and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration and cyclize to form the cyclic silicone fluids as represented by the following formula I'; the mixing ratio (x/y) of the compounds as represented in formula I and formula HI respectively can be 1:0.01-1:100; CH2CH2R3 of formula II equals to R of formula I or I'. formula I' |
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