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A kind of acrylate-containing silicone polyether copolymer and preparation method thereof

A polyether copolymer and alkenoate-containing technology, applied in the coating and other directions, can solve the problems of high production process and equipment requirements, no universality, safety hazards, etc., and achieve large production safety hazards and good application. Prospects, effects of high production process and equipment requirements

Active Publication Date: 2016-03-02
JIANGSU MAYSTA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Allyl polyether capping methods disclosed in the above patents have certain technical problems: the capping methods of patents CN101628976A and CN101982481A are limited by the polyether structure and are not universal; the capping methods of patents 101735444A, CN101543747A and CN101885839B use a large number of organic Solvents, such as toluene, etc., produce a large amount of waste liquid, which is easy to pollute the environment
In patent CN103193973A, active metal sodium is used as a raw material. In patent 101735444A, a large amount of acid is used as a raw material. In patent 101982481A, the raw material halopropene will react with other substances containing hydroxyl groups to form highly toxic allyl alcohol. The above method is very harmful to raw material storage and production. The process and equipment requirements are high, and it brings huge safety hazards

Method used

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  • A kind of acrylate-containing silicone polyether copolymer and preparation method thereof
  • A kind of acrylate-containing silicone polyether copolymer and preparation method thereof
  • A kind of acrylate-containing silicone polyether copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Add 4.86g of ethanol, 102.25g of ethylene oxide and 42.89g of propylene oxide into the reactor, and react for 5h under the conditions of 0.73gKOH catalyst, pressure ≤ 0.4MPa, and reaction temperature of 120°C to obtain terminal hydroxyl groups Polyether;

[0037] (2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and hexamethyldisiloxane at 80°C for 5 hours under the action of sulfuric acid to obtain hydrogen-containing polymethylsiloxane, wherein The molar ratio between octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and hexamethyldisiloxane was 5.50:0.75:1.

[0038] (3) Add 44.04g of hydrogen-containing polymethyl siloxane and 24.85g of methyl oleate into the reactor, heat up to 110~ React at 130°C for 4 hours to obtain methyl oleate grafted polymethylsiloxane copolymer.

[0039] (4) 68.89g of methyl oleate grafted polymethylsiloxane copolymer, 131.11g of hydroxyl-terminated polyether and 0.2g of dibutyltin oxide were added to the ...

Embodiment 2

[0043] (1) Add 5.40g of n-butanol, 51.41g of ethylene oxide and 93.18g of propylene oxide into the reactor, and react for 5h under the conditions of 0.72gKOH catalyst, pressure≤0.4MPa, and reaction temperature at 120°C to obtain Hydroxyl-terminated polyether;

[0044] (2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, and hexamethyldisiloxane at 80°C for 5 hours under the action of sulfuric acid to obtain hydrogen-containing polymethylsiloxane, wherein The molar ratio of octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and hexamethyldisiloxane was 7.75:0.63:1.

[0045] (3) Add 50.73g of hydrogen-containing polymethylsiloxane and 11.95g of methyl undecylenate into the reactor, heat up to 110-130°C under normal pressure with 12ppm chloroplatinic acid catalyst and 30ppm triethylamine co-catalyst After reacting for 4 hours, the undecylenic acid methyl ester grafted polymethylsiloxane copolymer was obtained.

[0046] (4) 62.68g of methyl undecylenat...

Embodiment 3

[0050] (1) Add 2.79g of methanol, 46.05g of ethylene oxide and 101.16g of propylene oxide into the reactor, and react for 5 hours in the presence of 0.74g of KOH catalyst, pressure ≤ 0.4MPa, and reaction temperature of 120°C to obtain terminal hydroxyl groups Polyether;

[0051] (2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, and hexamethyldisiloxane at 80°C for 5 hours under the action of sulfuric acid to obtain hydrogen-containing polymethylsiloxane, wherein The molar ratio of octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and hexamethyldisiloxane is 10.63:1:1.

[0052] (3) Add 49.34 g of hydrogen-containing polymethylhydrogen siloxane and 20.09 g of methyl linoleate into the reactor, heat up to 110-130 °C under normal pressure with 16 ppm chloroplatinic acid catalyst and 35 ppm isooctyl alcohol co-catalyst After reacting for 4 hours, a methyl linoleate grafted polymethylsiloxane copolymer was obtained.

[0053] (4) 69.43g of methyl olea...

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Abstract

The invention discloses an olefine acid ester contained organic silicon polyether copolymer and a preparing method thereof. In the copolymer, the polysiloxane main chain is connected with a polyether side chain through an olefine acid ester compound. The olefine acid ester contained organic silicon polyether copolymer provided by the invention adopts a structure shown in the structural formula I (refer to the Specification), wherein in the structural formula I, R1 refers to an alkyl group with 1-15 hydrogen atom(s) or carbon atom(s); R2 refers to an alkyl group with 1-4 carbon atom(s); m represents 10-80, n represents 1-10, q represents 1-20, a represents 4-30, b represents 0-10, m plus n equals to 11-90, and a plus b equals to 4-40; R is hydrogen atoms or a structure shown in the structural formula II (refer to the Specification), wherein in the structural formula II, R1 refers to an alkyl group with 1-15 hydrogen atom(s) or carbon atom(s); R2 refers to an alkyl group with 1-4 carbon atom(s); q represents 1-20, a represents 4-30, b represents 0-10, and a plus b equals to 4-40.

Description

technical field [0001] The invention relates to an alkenoate-containing silicone polyether copolymer, more specifically to an alkenoate-containing silicone polyether copolymer and a preparation method thereof. Background technique [0002] As a silicone surfactant, the blocked polyether modified silicone copolymer is mainly used as a polyurethane foam stabilizer or coating leveling agent. In the foaming process of polyurethane foam, silicone foam stabilizer has the functions of emulsification, nucleation, foam stabilization, opening and punching of foam, and is one of the essential components in its production. Silicone leveling agent is mainly to reduce the surface tension of the coating, so that the surface tension of the coating is lower than that of the substrate, and the substrate is easy to be lubricated by the coating, so as to prevent shrinkage and improve leveling. [0003] Generally, the synthesis process of capped polyether modified silicone copolymer is as follo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C08G77/38C08G77/12C08G65/28C09D7/12C09D7/06C09D7/47
Inventor 唐雄峰孙宇罗振扬沈杰陈天鹏
Owner JIANGSU MAYSTA CHEM
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