Butynediol ethoxylate modified bola type organosiloxane and preparation method thereof

A technology of ethoxylates and organosiloxanes, applied in the direction of organic chemistry, silicon organic compounds, chemical instruments and methods, etc., can solve the problems of unfavorable industrial production, increased production costs, long reaction time, etc., and achieve good wetting The effect of spreading ability, low cost and easy operation

Pending Publication Date: 2017-09-19
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under catalyst conditions, hydrogen-containing polysiloxane, allyl polyether compounds and allyl epoxy compounds react to obtain intermediates; under platinum catalyst conditions, secondary amines and intermediates are balanced to copolymerize to obtain amino-modified polysilicon Oxane copolymers improve the hydrophilicity of polysiloxane and give it some amino properties; although these methods solve some of the water solubility problems, in the industrial production process, such as solvent reaction, high reaction temperature and long reaction time , low conversion rate, etc. will increase production costs, which is not conducive to industrial production

Method used

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  • Butynediol ethoxylate modified bola type organosiloxane and preparation method thereof
  • Butynediol ethoxylate modified bola type organosiloxane and preparation method thereof
  • Butynediol ethoxylate modified bola type organosiloxane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Raw materials and dosage

[0040] A butynediol diethoxylate (EO=1) 26.86g, octamethylcyclotetrasiloxane 22.86g, tetramethyldihydrodisiloxane 10.36g, concentrated sulfuric acid 1.0g, chloroplatinic acid Take 60ppm and 0.06ppm respectively with tributylamine catalyst.

[0041] (2) specific preparation method

[0042] Weigh the sample according to the above ratio, mechanically stir butynediol diethoxylate, tetramethyldihydrodisiloxane and chloroplatinic acid at 70°C to fully complex, then add tributylamine catalyst , at 70°C, N 2 Under protective conditions, mechanically stirred for 4 hours to obtain butynediol diethoxylate-modified tetramethyldisiloxane. Then, butynediol diethoxylate modified tetramethyldisiloxane and octamethylcyclotetrasiloxane were catalyzed by concentrated sulfuric acid, 40°C, N 2 Under protective conditions, mechanically stirred for 8 hours and then suction filtered to remove low boilers to obtain a light yellow product, namely butynediol die...

Embodiment 2

[0045] (1) Raw materials and dosage

[0046]A butynediol diethoxylate (EO=15) 55.37g, decamethylcyclopentasiloxane 20.57g, tetramethyldihydrodisiloxane 9.32g, concentrated sulfuric acid 2.28g, castor With tributylamine catalyst 60ppm, 0.18ppm.

[0047] (2) specific preparation method

[0048] Weigh the sample according to the above ratio, mechanically stir butynediol diethoxylate, tetramethyldihydrodisiloxane and Castel catalyst at 75°C to fully complex, then add tributylamine Catalyst, at 90°C, N 2 Under protective conditions, mechanically stirred for 4 hours to obtain butynediol diethoxylate-modified tetramethyldisiloxane. Then, butynediol diethoxylate modified tetramethyldisiloxane and decamethylcyclopentasiloxane were catalyzed by concentrated sulfuric acid, 60°C, N 2 Under protective conditions, mechanically stirred for 8 hours and then suction filtered to remove low boilers to obtain a light yellow product, which is butynediol diethoxylate-modified bola-type organosi...

Embodiment 3

[0051] (1) Raw materials and dosage

[0052] A butynediol diethoxylate (EO=30) 85.97g, hexamethylcyclotrisiloxane 18.51g, tetramethyldihydrodisiloxane 8.34g, concentrated hydrochloric acid 3.13g, chloroplatinic acid and benzotriazole catalyst are 60ppm and 0.3ppm respectively.

[0053] (2) specific preparation method

[0054] Weigh the sample according to the above ratio, mechanically stir the butynediol diethoxylate, tetramethyldihydrodisiloxane and chloroplatinic acid at 80°C to fully complex, then add the benzotriazole catalyst , at 110°C, N 2 Under protective conditions, mechanically stirred for 4 hours to obtain butynediol diethoxylate-modified tetramethyldisiloxane. Then, butynediol diethoxylate modified tetramethyldisiloxane and hexamethylcyclotrisiloxane were catalyzed by concentrated hydrochloric acid, 70°C, N 2 Under protective conditions, mechanically stirred for 8 hours and then suction filtered to remove low boilers to obtain a light yellow product, which is b...

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Abstract

The invention discloses butynediol ethoxylate modified bola type organosiloxane and a preparation method thereof. The preparation method includes: butynediol ethoxylate and tetramethyl dihydro disiloxane have reaction under the effects of a platinum catalyst and an amine composite catalyst to obtain butynediol ethoxylate modified tetramethyl disiloxane; balanced copolymerization is performed under the effect of a catalyst to obtain the butynediol ethoxylate modified bola type organosiloxane. The preparation method has the advantages that the method is large in grafted hydrophilic group proportion, high in grafting rate, free of solvent adding and suitable for large-scale industrial production; the prepared hydrophilic group butynediol ethoxylate modified bola type organosiloxane is good in water solubility, good in wetting and spreading ability, high in surface activity and high in defoaming/foam inhibiting performance.

Description

technical field [0001] The invention specifically relates to an acetylene glycol ethoxylate modified bola type organosiloxane and a preparation method thereof. Background technique [0002] In the 1950s, organosilicon surfactants gradually attracted people's attention. They have the advantages of excellent wetting and spreading properties, high surface activity, and stable biological inertness. Therefore, organosilicon surfactants have gradually been widely used in various fields, such as printing , pesticides, daily chemicals, ink and other industries. [0003] Siloxane is one of the main chains of organosilicon surfactants. Because of its low price and easy availability of raw materials, it is widely used; its hydrophobicity is strong, and its water solubility is poorer than that of the equivalent carbon chain surfactants. The water solubility of silicone surfactants has become a hot topic. [0004] Nowadays, some groups with strong hydrophilicity are generally grafted b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/20C08G77/46C08G65/336C07F7/08
CPCC07F7/0838C08G65/336C08G77/045C08G77/20C08G77/46
Inventor 王国永方鹏霄王万绪杜志平马晓原
Owner CHINA RES INST OF DAILY CHEM IND
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