- Reactions of Trichlorogermane and Trimethylgermane Etherates with 1,3-Divinyl-1,1,3,3-tetramethyldisiloxane
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Abstract: The effect of the reactant ratio in the reaction of tetramethyldisiloxane with germanium tetrachloride and diethyl ether on the structure and reactivity of the resulting trichlorogermane–diethyl ether complexes was studied, and the products were
- Blagushina, A. I.,Efimenko, D. A.,Gritskova, I. A.,Komalenkova, N. G.,Lakhtin, V. G.,Semyashkina, I. A.,Sokol?skaya, I. B.,Storozhenko, P. A.,Ushakov, N. V.
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p. 968 - 976
(2020/07/27)
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- Preparation method of 1, 5-divinyl-1, 1, 3, 3, 5, 5-hexamethyltrisiloxane
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The invention discloses a preparation method of 1, 5-divinyl-1, 1, 3, 3, 5, 5-hexamethyltrisiloxane. The method comprises the steps of carrying out a kettle type reaction at the temperature of 70-80 DEG C by taking divinyl tetramethyl disiloxane and dialk
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Paragraph 0027; 0028; 0029; 0030; 0031-0034; 0035-0042
(2018/09/13)
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- PREPARATION METHOD OF VINYL-TERMINATED SILOXANE
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The invention relates to a preparation method of vinyl-terminated siloxane. R2R3Si(OR4)2, R12(CH2═CH)SiOSi(CH═CH2)R12, an organic acid and a catalyst are added into a reaction bottle according to the molar ratio of 1:1-1.5:1-2.5:0.005-0.01, wherein R1 is alkyl, R2 and R3 are alkyl, aryl or substituted alkyl, substituted aryl identically and differently, and R4 is alkyl, heating is performed to 50-80° C. while stirring, the stirring reaction is performed at the temperature for 5-30 min, then a dehydrating agent is added, and the reaction is continuously performed for 2-5 h at the temperature of 50-80° C.; and the temperature is reduced to room temperature after the end of reaction, and then dilution, washing with water to neutral, collection of an organic phase, drying, filtering, concentration, reduced pressure distillation and collection of a fraction at corresponding pressure and temperature are sequentially performed so as to obtain a vinyl-terminated siloxane compound product.
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Paragraph 0022
(2015/11/03)
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