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Fluorine-containing carbon chain acrylate, preparation method and application for copolymer thereof

A carbon chain acrylate and copolymer technology, applied in textiles and papermaking, devices for coating liquids on surfaces, coatings, etc. Water repellent effect

Inactive Publication Date: 2007-03-14
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the fluorine-containing series of finishing agents at home and abroad are mainly long-chain perfluorocarbon chains. The US Environmental Protection Agency has paid attention to the impact of this long-chain perfluorocarbon chain on the environment. Long-chain perfluorocarbon chains have been found in animal excrement. fluorocarbon chains, which can not only bioaccumulate in the human body but also have a long biological half-life (Ji Guo et al., New non-biopersistent fluorinated alkyl methacrylate polymers), foreign countries have begun to restrict the use of long-chain perfluorocarbon chains
The water and oil repellency effect is the best when the number of carbon atoms in the fluorocarbon chain in the fluorine-containing finishing agent reaches 8 carbon atoms, but this long-chain perfluorocarbon chain is bioaccumulative, while the short-chain perfluorocarbon chain The water- and oil-repelling effect is not ideal, so it is imperative to find a degradable alternative with excellent water- and oil-repelling effect

Method used

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  • Fluorine-containing carbon chain acrylate, preparation method and application for copolymer thereof
  • Fluorine-containing carbon chain acrylate, preparation method and application for copolymer thereof
  • Fluorine-containing carbon chain acrylate, preparation method and application for copolymer thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Synthesis of Fluorinated Acrylate Copolymer Using Perfluoroiodohexane as Starting Material

[0048] In a 100ml autoclave, add 10 grams of perfluoroiodohexane, 0.1 grams of cuprous chloride, and 5.43 grams of vinylidene fluoride. Heated to 300°C and reacted for 48 hours. After the reaction was completed, the autoclave was cooled in an ice-water bath to release unreacted vinylidene fluoride gas. Purification gives 1-iodo-2H, 2H-perfluorooctane.

[0049] The relevant data are as follows: 1 H NMR (300MHz, CDCl 3 )δ3.42(m, J=15.6, 2H); 19 FNMR (282MHz, CDCl 3 ( s, 2F), -126.17(m, 2F).

[0050] In a 100ml autoclave, add 27.87 grams of 1-iodo-2H, 2H-perfluorooctane, 0.975 grams of sodium dithionite, 70 milliliters of diglyl dimethyl ether, and feed ethylene gas, react for 8 hours, and find the pressure in the kettle Decrease, stop the reaction, release excess ethylene gas, and distill to obtain 1-iodo-1H, 1H, 2H, 2H, 4H, 4H-perfluorodecane.

[0051] The relevant data ...

Embodiment 2

[0060] Synthesis of Fluorinated Acrylate Copolymer Using Perfluoroiodobutane as Starting Material

[0061] In a 0.1-liter autoclave, add 100 grams of perfluoroiodobutane and 32 grams of vinylidene fluoride. Heated to 300°C and reacted overnight. After the reaction was complete, the autoclave was cooled in an ice-water bath to release the remaining gas. Purification affords pure 1-iodo-2H,2H,4H,4H-perfluorooctane.

[0062] The relevant data are as follows: 1 H NMR (300MHz, CDCl 3 )δ3.41(m, 2H), 2.83(m, 2H); 19 F NMR (282MHz, CDCl 3 )δ -38.82 (m, 2F), -81.08 (m, 3F), -88.10 (m, 2F), -112.60 (m, 2F), -124.42 (s, 2F), -125.87 (m, 2F).

[0063] In a 250 ml three-necked flask, 5.57 g of Na 2 S 2 o 4 Added to 9.48 g of 1-iodo-2H,2H,4H,4H-perfluorooctane, 3.8 g of vinyl ether, and 150 ml of tetrahydrofuran. After 15 hours of reaction, C 4 f 9 CH 2 CF 2 CH 2 CF 2 CH 2 CHO without further purification.

[0064] The above product was dissolved in 40 ml of butanol, and a...

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Abstract

The present invention discloses the preparation process and application of fluorocarbon chain-containing acrylate and its copolymer. The preparation process of the fluorocarbon chain-containing acrylate includes the steps of: 1. synthesizing Rf(CH2CF2)mix; 2. synthesizing fluoric alcohol Rf-(CH2CF2)m(CH2)nOH; and 3. synthesizing fluorocarbon chain-containing acrylate. The present invention is used in surface water-repellent and oil-repellent treatment of fabric, metal, paper, glass, plastic, rubber, ceramic, etc. The present invention is one kind of high performance green water-repellent and oil-repellent agent with excellent water-repellent, oil-repellent and antifouling functions and degradability.

Description

technical field [0001] The patent of the present invention relates to a water and oil repellent finishing agent and its preparation method and application, in particular to a preparation method and application of a fluorine-containing carbon chain acrylate and its copolymer. Background technique [0002] At present, with the development of textiles at home and abroad and the improvement of people's living standards, people pay more and more attention to multifunctional textiles with high technical content. Finishing agents that can not only endow fabrics with excellent water-repellent, oil-repellent, and anti-fouling functions, but also are environmentally friendly and harmless to the human body, have increasingly attracted widespread attention. [0003] Perfluoroacrylate polymers are obtained by introducing perfluoro groups into acrylic polymers and changing the side chain structure of the original polymers. Due to the high electronegativity of fluorine, the C-F bond is ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/22C08F2/22C08F4/32D06M15/277C08J7/04C03C25/00C04B41/45D21H19/00B05D7/14
Inventor 卿凤翎黄继庆
Owner DONGHUA UNIV
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