A kind of intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and preparation method thereof

A fabric finishing agent, intelligent technology, applied in the field of polymer synthesis and textile chemical additives, can solve the problems of low ground state energy level, poor thermal stability, etc.

Active Publication Date: 2019-08-13
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The trans configuration of azobenzene has a lower ground state energy level and better thermal stability, while the cis configuration has a higher ground state energy level than the trans configuration and poor thermal stability

Method used

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  • A kind of intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and preparation method thereof
  • A kind of intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and preparation method thereof
  • A kind of intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] (1) p -Nafluorobutylaniline

[0084] Add 3.44 g of p-bromoaniline, 5 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide (DMSO) into a 250 ml three-neck flask equipped with a magnetic stirrer, a thermometer and a condenser tube, stir and heat to 60 °C. Then 9 g of nonafluoroiodobutane was dissolved in 25 ml of DMSO and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the nonafluoroiodobutane solution was added dropwise, the reaction system was heated to 120 °C and refluxed for 24 h. The reaction system was cooled to room temperature, and the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash it with deionized water (30 ml x 3 times), dry over anhydrous magnesium sulfate for 8 h, filt...

Embodiment 2

[0099] (1) p -Synthesis of Tridecafluorohexylaniline

[0100] Add 3.44 g of p-bromoaniline, 5 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide (DMSO) into a 250 ml three-neck flask equipped with a magnetic stirrer, a thermometer and a condenser tube, stir and heat to 60 °C. Then 11.6 g trifluoroiodohexane was dissolved in 25 ml of DMSO and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the dropwise addition of tridecafluoroiodohexyl solution was completed, the reaction system was heated to 120 °C and refluxed for 24 h. The reaction system was cooled to room temperature, the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash it with deionized water (30 ml x 3 times), dry over anhydrous ...

Embodiment 3

[0113] (1) p -Heptadecafluorooctylaniline

[0114] Add 3.45 g of p-bromoaniline, 5.15 g of copper powder (catalyst) and 100 ml of dimethyl sulfoxide into a 250 ml three-neck flask equipped with a magnetic stirring bar, a thermometer and a condenser, and heat to 60 °C with stirring. Then 9.21 g of heptadecafluoroiodoctane was dissolved in 25 ml of dimethyl sulfoxide and added to a constant pressure dropping funnel, and slowly dropped into a three-necked flask. After the nonafluoroiodobutane solution was added dropwise, the temperature of the reaction system was raised to 115° C. and refluxed for 12 hours. The reaction system was cooled to room temperature, and the reaction was poured into a 500 ml beaker, 100 ml of deionized water and 200 ml of anhydrous ether were added at the same time, the layers were stirred, and the copper powder was filtered off. Pour the filtrate into a 500 ml separatory funnel to separate the organic layer and wash with deionized water (30 ml × 3 time...

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PUM

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Abstract

The invention discloses an intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and a preparation method thereof. The active ingredient of the finishing agent provided is a perfluoroalkyl azophenyl acrylate copolymer. Using perfluoroalkyl azophenol as the initial raw material, the acrylate monomer containing perfluoroalkyl azophenyl group is obtained by esterification reaction with acryloyl chloride, and then emulsion polymerized with hydroxyethyl methacrylate and butyl acrylate Acrylate copolymer emulsion containing perfluoroalkyl azophenyl group was prepared. By increasing the amount of initiator during emulsion polymerization, the obtained copolymer has a low degree of polymerization, a short main chain of the copolymer molecule, and a small degree of molecular chain entanglement. Therefore, the molecular isomerization ability of the side group azophenyl group is strong, which is beneficial to the surface affinity. convert. The intelligent water-repellent finishing agent provided by the invention has mild preparation reaction conditions, simple and convenient preparation process, and is suitable for industrial production.

Description

technical field [0001] The invention relates to a fabric surface finishing agent, in particular to an intelligent fabric finishing agent with switchable surface affinity and hydrophobicity and a preparation method thereof, belonging to the fields of polymer synthesis and textile chemical auxiliary agents. Background technique [0002] The azobenzene polymer mainly introduces the azobenzene structural unit into the polymer chain through chemical bond connection. So far, researchers have synthesized a large number of azobenzene polymers, which are mainly divided into the following four types: terminal azobenzene polymers, side chain azobenzene polymers, and main chain azobenzene polymers. Benzene polymers and doped azobenzene polymers. The azophenyl group has two isomer configurations: the rod-like trans configuration (trans) and the crooked cis configuration (cis), the trans configuration is planar, and the cis configuration is spherical structure. From the perspective of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/34C08F220/28C08F2/26C08F2/30D06M15/277C07C245/08D06M101/06D06M101/36
CPCC07C209/68C07C245/08C08F2/26C08F2/30C08F220/18C08F220/1804D06M15/277D06M2101/06D06M2101/36C07C211/45C08F220/34C08F220/281
Inventor 李战雄戴礼孙弋
Owner SUZHOU UNIV
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