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Hydrophobic association typed thickening agent containing fluorocarbon radicals its synthesizing method and usage

A technology of hydrophobic association and synthesis method, which is applied in the field of hydrophobic association type thickeners containing fluorocarbon groups, and can solve the problems of high price of fluorocarbon monomers and the like

Inactive Publication Date: 2005-01-05
SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, fluorocarbon monomers are more expensive, and the use of hydrocarbon hydrophobic monomers is more cost-effective

Method used

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  • Hydrophobic association typed thickening agent containing fluorocarbon radicals its synthesizing method and usage
  • Hydrophobic association typed thickening agent containing fluorocarbon radicals its synthesizing method and usage
  • Hydrophobic association typed thickening agent containing fluorocarbon radicals its synthesizing method and usage

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Experimental program
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Embodiment 1

[0039] Raw materials: acrylic acid (AA), redistilled. The hydrocarbon hydrophobic monomer n-octadecacrylate (abbreviated as SA, BASF company), has not been processed. Fluorocarbon hydrophobic monomer FX14 and initiator AIBN were recrystallized from methanol. Diethylene glycol diacrylate (abbreviated as DGDA, Aldrich Company), redistilled. Diethylene glycol dimethacrylate (abbreviated as DGDMA, Aldrich Company), was not processed. N, N-methylenebisacrylamide (China Reagent Corporation), untreated. The used hydrophilic monomer of thickener synthesis, the structural formula of hydrophobic monomer and cross-linking agent are as follows:

[0040]

[0041]

[0042] R = H, CH 3

[0043] Diethylene glycol di(meth)acrylate N,N-methylene-bisacrylamide.

[0044] Synthesis of polymers: in a machine equipped with condenser, stirrer, N 2 In the three-necked bottle with the interface, add AA, a mixed solvent of ethyl acetate and cyclohexane, a hydrophobic monomer, a crosslinking...

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Abstract

A hydrophobic association-type fluorocarbon group contained thickening agent is prepared from acrylic acid or methyl acrylic acid, acrylate or methyl acrylate, and dual-function-group cross-linking agent through polymerizing. Its structural formula is also disclosed.

Description

technical field [0001] The invention relates to a fluorine-containing carbon group hydrophobic association thickener, a synthesis method and application. The hydrophobic associative thickener is a polymer compound, which is acrylic acid or methacrylic acid, fluorine-containing acrylate or fluorine-containing methacrylate, and a bifunctional crosslinking agent polymer. It is a hydrophobic association polyelectrolyte. Background technique [0002] Water-soluble polymers (WSPs) have been widely used in industrial fields, including pharmaceutical preparation, cosmetics, coatings, papermaking, secondary oil recovery, water treatment, etc. As a thickening agent or rheology modifier, it is nothing more than two types of natural product modification and artificial synthesis. As for the modified products of natural polymers, they are mainly hydrophobically modified hydroxyethyl celluloid (HMEHEC) and other polysaccharides. Today, chemically synthesized thickeners account for a maj...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24C08L33/00
Inventor 章云祥
Owner SHANGHAI INST OF ORGANIC CHEM CHINESE ACAD OF SCI
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