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A kind of comb structure polymer, preparation method and application

A structural polymer, polymer technology, applied in the application, cosmetic preparations, dyeing methods, etc., can solve the problems of no water-based chains, reduce system viscosity, etc., to achieve good compatibility, maintain stability, production low cost effect

Active Publication Date: 2022-08-05
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN105111813A discloses a method for preparing a polyurethane-modified acrylate polymer dispersant for coatings. The prepared polyurethane-modified acrylate can effectively reduce the viscosity of the system, but the polymer structure of the dispersant does not contain water-based chemical chains. Can be used in solvent-based systems

Method used

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  • A kind of comb structure polymer, preparation method and application
  • A kind of comb structure polymer, preparation method and application
  • A kind of comb structure polymer, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 250 g of acetone was added to the 1# reactor and heated to 70°C. 75 g of acrylic acid, 100 g of APEG-200, 30 g of heptene, and 6.5 g of azobisisoheptanenitrile were mixed and added dropwise to the reactor for 5 h. After the dropwise addition, the reaction was completed by holding the temperature for 1 h, and the main chain polymer 1 was prepared. The weight-average molecular weight of the GPC test was 7896 g / mol.

[0073] Add 60 g of 4,4'-diphenylmethane diisocyanate, 120 g of PEG1000, and 5 g of zinc isooctanoate to the 2# reactor, raise the temperature to 70 °C, and react for 5 h. After the reaction, the side chain polymer 2 was obtained, and its weight-average molecular weight was 9865 g / mol by GPC test.

[0074] All the prepared main chain polymer 1 was added to the 2# reactor, then 10 g of zinc isooctoate was added, the temperature was raised to 90 ° C, the reaction was terminated after 5 h of reaction, the solvent was removed by distillation under reduced pressur...

Embodiment 2

[0076] 260 g of butanone was added to the 1# reactor and heated to 80°C. 60 g of methacrylic acid, 80 g of APEG-3000, 35 g of hexene and 10 g of azobisisovaleronitrile were mixed and added dropwise to the reactor for 3 h. After the dropwise addition was completed, the reaction was maintained for 1 h to complete the reaction, and the main chain polymer 1 was prepared. The weight-average molecular weight of the GPC test was 4135 g / mol.

[0077] 90g of hexamethylene diisocyanate, 95g of PEG400, and 6g of zinc neodecanoate were added to the 2# reactor, heated to 90°C, and reacted for 6h. After the reaction, the side chain polymer 2 was obtained, and its weight-average molecular weight was 5978 g / mol by GPC test.

[0078] The main chain polymer 1 was added to the 2# reactor, 15 g of zinc neodecanoate was added, the temperature was raised to 100 ° C, the reaction was terminated after 6 hours of reaction, the solvent was removed by distillation under reduced pressure, and water and ...

Embodiment 3

[0080] 150 g of butyl acetate was added to the 1# reactor and heated to 100°C. 50 g of crotonic acid, 40 g of mPEG-13000, 20 g of decene and 8 g of dilauroyl peroxide were mixed and added dropwise to the reactor for 4 h. After the dropwise addition was completed, the reaction was maintained for 1 h to complete the reaction, and the main chain polymer 1 was prepared. The weight-average molecular weight of the GPC test was 2644 g / mol.

[0081] Add 60 g of isophorone diisocyanate, 90 g of PEG800, and 5 g of bismuth isooctanoate to the 2# reactor, heat up to 100 °C, and react for 4 h. After the reaction, side chain polymer 2 was obtained, and its weight-average molecular weight was 7631 g / mol by GPC test.

[0082] The main chain polymer 1 was added to the 2# reactor, 10 g of bismuth isooctanoate was added, the temperature was raised to 120 ° C, the reaction was terminated after 7 hours of reaction, the solvent was removed by distillation under reduced pressure, and water and sodi...

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Abstract

The invention discloses a comb-shaped structure polymer, a preparation method and an application. The comb-shaped structure polymer has a structural expression shown in the following formula I. The polymer uses the segment containing carboxyl and ether groups as the hydrophilic main chain, the reaction segment of isocyanate and polyol as the hydrophobic side chain, and the molecular weight of the comb-shaped structure is controllable, which can be applied to both oily systems and The dispersion of water-based systems has good slurry stability and can improve the appearance and resistance of dispersion products.

Description

technical field [0001] The invention relates to a comb-shaped structure polymer, in particular to a comb-shaped structure polymer, a preparation method and an application, and belongs to the technical field of polymer synthesis and application. Background technique [0002] In the fields of coatings, inks, colorants, etc., the dispersion of pigments and fillers is an important technical link. Dispersant is an auxiliary agent used to disperse and stabilize pigments and fillers. Its mechanism of action is to adsorb on the surface of pigments and fillers through anchoring groups, and The particles are stabilized by electrostatic repulsion and / or steric hindrance, so that the pigment and filler particles are uniformly distributed in the system. [0003] With the increasingly stringent environmental protection requirements, the demand for aqueous dispersant products is increasing. Traditional aqueous dispersants are mainly polycarboxylate homopolymers, which have poor anchoring ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/02C08F283/06C08F220/06C08F210/14C08F220/04C08F222/02C08F210/10C08G18/48C08G18/42C09D7/65C09D11/03C09D17/00D06P1/52C14C11/00C04B35/634A61K8/86A61Q19/00
CPCC08G81/024C08F283/065C08G18/4833C08G18/42C09D7/65C09D11/03C09D17/00D06P1/5264C14C11/00C04B35/63488A61K8/86A61Q19/00A61K2800/10C08F220/06C08F210/14C08F220/04C08F222/02C08F210/10
Inventor 张抒秦佃斌纪学顺孙家宽
Owner WANHUA CHEM GRP CO LTD
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