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Fluorine contained organosilicon-polyether copolymer and preparation method thereof

A technology of polyether copolymer and silicone, which is applied in the field of silicone polyether copolymer and its preparation, can solve the problems of weakening effect, lower hydrophobic efficiency, and lower performance of fluorosilicon polymer, so as to reduce surface tension and reduce interference , the effect of good surface tension

Active Publication Date: 2013-04-17
JIANGSU MAYSTA CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the hydrophobic groups on the main chain, the hydrophobic groups in the side chains have a lower hydrophobic efficiency
At the same time, the hydrophobic groups and hydrophilic groups interact and interfere with each other, weakening their respective roles in the polymer and reducing the performance of fluorosilicone polymers

Method used

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  • Fluorine contained organosilicon-polyether copolymer and preparation method thereof
  • Fluorine contained organosilicon-polyether copolymer and preparation method thereof
  • Fluorine contained organosilicon-polyether copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 5.00g of allyl alcohol, 76.00g of ethylene oxide and 30.00g of propylene oxide into the reactor, and react for 5h in the presence of 0.55g of KOH catalyst, pressure ≤ 0.4MPa, and reaction temperature of 120°C , to obtain terminal allyl polyether (I);

[0027] (2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, tetramethyldihydrodisiloxane and hexamethyldisiloxane at 65°C for 5 hours under the action of sulfuric acid, Obtain single-end hydrogen-containing polymethylhydrogensiloxane (II), in which octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, tetramethyldihydrodisiloxane and hexamethyldisiloxane The molar ratio between oxanes is 8:1:0.5:0.5.

[0028] (3) 100.00g of single-end hydrogen-containing polymethylhydrogensiloxane (II) and 19.30g of heptadecanyl fluorodecyl methacrylate were added to the reactor, and 6ppm of chloroplatinic acid catalyst and 12ppm of N,N-dimethylaniline Co-catalyst, heated to 90-120°C under normal pressur...

Embodiment 2

[0033] (1) Add 5.00g of allyl alcohol, 76.00g of ethylene oxide and 30.00g of propylene oxide into the reactor, and react for 5h in the presence of 0.56g of KOH catalyst, pressure ≤ 0.4MPa, and reaction temperature of 120°C , to obtain terminal allyl polyether (I);

[0034](2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and tetramethyldihydrodisiloxane at 65°C for 5 hours under the action of sulfuric acid to obtain hydrogen-containing polymethyl Hydrogen siloxane (II), wherein the molar ratio between octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and tetramethyldihydrodisiloxane is 8:1:1.

[0035] (3) 100.00g of hydrogen-containing polymethylhydrogensiloxane (II) at both ends and 38.80g of heptadecanyl fluorodecyl methacrylate were added to the reactor, and 7ppm of chloroplatinic acid catalyst and 14ppm of N,N-dimethylaniline Co-catalyst, heated to 90-120°C under normal pressure and reacted for 4 hours to obtain polymethylhydrogensiloxane (I...

Embodiment 3

[0040] (1) Add 5.00g of allyl alcohol, 95.00g of ethylene oxide and 25.00g of propylene oxide into the reactor, and react for 5h in the presence of 0.63g of KOH catalyst, pressure ≤ 0.4MPa, and reaction temperature of 120°C , to obtain terminal allyl polyether (I);

[0041] (2) React octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, tetramethyldihydrodisiloxane and hexamethyldisiloxane at 60°C for 5 hours under the action of sulfuric acid, Obtain single-end hydrogen-containing polymethylhydrogensiloxane (II), in which octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane and tetramethyldihydrodisiloxane and hexamethyldisiloxane The molar ratio of oxane is 6:1:0.5:0.5.

[0042] (3) Add 100.00g of single-end hydrogen-containing polymethylhydrogensiloxane (II) and 25.23g of perfluorodecylethylene into the reactor, heat up under normal pressure with 6ppm chloroplatinic acid catalyst and 13ppm triethylamine cocatalyst React at 90-120°C for 4 hours to obtain singl...

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Abstract

The invention discloses a fluorine contained organosilicon-polyether copolymer with the fluorine-contained main chain end of the polysilicone, which can effectively adjust the hydrophilic and lipophilic performance. The copolymer has the structural formula shown in the specification, wherein the value of m is 10-80, the value of n is 1-10, the value of q is 0-10, the value of a is 4-30, the value of b is 0-10, the total value of m, n and q is 11-90, and the total value of a and b is 4-40; R adopts CHR1COORf1, CHR1RF1 or CHRf1Rf2, wherein R1 is hydrogen atom or methyl, Rf1 and Rf2 adopt perfluoroalkyl group with the number of carbon atoms of 1-20, and part of the fluorine atom can be replaced by hydrogen atoms; and R' adopts CHR2COORf3, CHR2Rf3, CHRf3Rf4 or H, wherein R2 is the hydrogen atom or the methyl group, the Rf3 and Rf4 adopt the perfluoroalkyl group with the number of the carbon atoms of 1-20, and part of the fluorine atom can be replaced by the hydrogen atoms.

Description

technical field [0001] The invention relates to a silicone polyether copolymer and a preparation method thereof, more specifically to a fluorine-containing silicone polyether copolymer and a preparation method thereof. technical background [0002] Organic fluoropolymers are usually high molecular compounds polymerized from fluorine-containing organic compounds. Due to the large carbon-fluorine bond energy and the tight arrangement on the outer layer of the carbon skeleton, organic fluoropolymers have extremely low surface tension and excellent chemical stability. Performance, corrosion resistance, weather resistance, oxidation resistance and other properties. However, its low temperature resistance is poor. Silicone polymers have excellent properties such as high and low temperature resistance, weather resistance, oxidative degradation resistance, radiation resistance, corrosion resistance, physiological inertness and biocompatibility. However, its wear resistance and che...

Claims

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Application Information

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IPC IPC(8): C08G81/00C08G77/385C08G77/12C08G65/28
Inventor 孙宇唐雄峰罗振扬
Owner JIANGSU MAYSTA CHEM
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