Silicon-nitrogen compound as well as preparation method and application thereof

A technology of silicon-nitrogen compounds and compounds, applied in a class of silicon-nitrogen compounds and its preparation and application fields, can solve the problems of acetic acid with irritating odor and metal corrosion, and achieve high reactivity, fast vulcanization speed and high reaction active effect

Active Publication Date: 2013-07-10
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acetic acid has a pungent smell and is somewhat corrosive to metals

Method used

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  • Silicon-nitrogen compound as well as preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, Cl 2 Si(Me)CH 2 CH 2 Si(Me 2 )OSi(Me 2 )CH 2 CH 2 Si(Me)Cl 2 Synthesis

[0038]Under nitrogen protection, add 30g of 1,3-divinyl-1,1,3,3-tetramethyldisiloxane and 37g of methylhydrogendichlorosilane to a 150ml three-necked flask with a syringe, then add 50ml of tetrahydrofuran and 0.3g of Pt coordinated with 1,3-divinyl-1,1,3,3-tetramethyldisiloxane was used as a catalyst, and the temperature was raised to 50°C, stirred and refluxed for 12 hours, and excess methyl hydrogen was removed after the reaction Dichlorosilane and THF, distill the product under reduced pressure, collect the distillate at 110°C / 65Pa, and the yield is over 90%.

Embodiment 2

[0039] Embodiment 2, (Et 2 N) 2 Si(Me)CH 2 CH 2 Si(Me 2 )OSi(Me 2 )CH 2 CH 2 Si(Me)(NEt 2 ) 2 Synthesis

[0040] Add 4g of magnesium chips and 30g of Cl to a 250ml three-necked bottle with a syringe under nitrogen protection 2 Si(Me)CH 2 CH 2 Si(Me 2 )OSi(Me 2 )CH 2 CH 2 Si(Me)Cl 2 , then add 80ml of n-hexane as solvent, stir and heat up to 50°C, slowly inject 30g of diethylamine into the flask with a syringe, keep the solution turbid, the whole process lasts about 1h, after adding diethylamine, heat up to 75°C React overnight (about 12h). After the reaction was completed, the product was obtained by filtering, removing the solvent and unreacted diethylamine, and the yield was 85%.

Embodiment 3

[0041] Embodiment 3, (M 2 N) 2 Si(Me)CH 2 CH 2 Si(Me 2 )OSi(Me 2 )CH 2 CH 2 Si(Me)(NMe 2 ) 2

[0042] Add 4g of magnesium chips and 30g of Cl to a 250ml three-necked bottle with a syringe under nitrogen protection 2 Si(Me)CH 2 CH 2 Si(Me 2 )OSi(Me 2 )CH 2 CH 2 Si(Me)Cl 2 , and then add 80ml of chloroform as a solvent, stir and heat up to 50°C, then slowly pass dimethylamine into the three-necked bottle, keep the solution turbid, and continue to pass dimethylamine for 15h. After the reaction was completed, the product was obtained by filtering to remove the solvent and unreacted dimethylamine, and the yield was 87%.

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Abstract

The invention discloses a silicon-nitrogen compound as well as a preparation method and application thereof. The structural formula of the silicon-nitrogen compound is as shown in a formula I, wherein X radical is one radical or a combination of radicals selected from pyrazolyl, substituted pyrazolyl, imidazolyl, substituted imidazolyl or amino. The silicon-nitrogen compound disclosed by the invention has a higher vulcanization rate for RTV (Room Temperature Vulcanization) silicon rubber under the room temperature and can be used for providing better heat resistance to the silicon rubber, better bonding strength to the steel and bigger application value.

Description

technical field [0001] The present invention relates to a new class of silicon-nitride compounds and their preparation and application. Background technique [0002] Silicone rubber has good properties, such as high temperature resistance, low temperature resistance, weather resistance, insulation, hydrophobicity, physiological inertia, etc., so it has been widely used in aerospace, optics, electronics, transportation, medical and other fields. According to the crosslinking mechanism, silicone rubber can be divided into condensation type silicone rubber and addition type silicone rubber. According to the temperature of vulcanization, it can be divided into room temperature vulcanization (RTV) silicone rubber and high temperature vulcanization (HTV) silicone rubber. The usual condensation-type silicone rubber is based on hydroxyl-terminated polydiorganosiloxane [such as HO (R 2 SiO) n H] is a three-dimensional network elastomer formed by condensation reaction with a cross-l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/10C08K5/5465C08K5/5445
Inventor 张志杰郝开强谭永霞谢择民戴丽娜谢江
Owner INST OF CHEM CHINESE ACAD OF SCI
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