Macromolecular adhesive containing dopamine phosphate ester structure as well as preparation method and application of macromolecular adhesive

A molecular weight, amino-containing technology, applied in the direction of bonding methods, adhesive types, grafted polymer adhesives, etc., can solve problems such as environmental sanitation and environmental protection that are difficult to meet, and achieve process parameters that are easy to control and easy to purchase , The effect of simple preparation method

Active Publication Date: 2015-07-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These polymer adhesives are industrially produced, and organic solvents are usually used to help dissolve them during use. It is difficult to meet the increasingly

Method used

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  • Macromolecular adhesive containing dopamine phosphate ester structure as well as preparation method and application of macromolecular adhesive
  • Macromolecular adhesive containing dopamine phosphate ester structure as well as preparation method and application of macromolecular adhesive
  • Macromolecular adhesive containing dopamine phosphate ester structure as well as preparation method and application of macromolecular adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1, preparation of a polymer adhesive containing a dopamine-based phosphate-like structure:

[0051] The monomers N-(3-aminopropyl)methacrylamide hydrochloride, 3,4-dihydroxybenzaldehyde, diethyl phosphite and polyethylene glycol monomethyl ether methacrylate were synthesized in one pot (Copolymerization monomer) is added in the mixed solvent of ethanol and acetonitrile (wherein, the volume ratio of ethanol and acetonitrile is 1:1) according to molar ratio of feeding 1:1.2:1.4:0.5, and then add triethylamine thereinto, The molar ratio of triethylamine and monomer N-(3-aminopropyl) methacrylamide hydrochloride is 1.2:1, and the purpose of adding triethylamine is to neutralize the hydrochloride carried by the monomer, trigger agent azobisisoheptanonitrile (mass accounts for 0.4% of monomer N-(3-aminopropyl) methacrylamide hydrochloride mass) and chain transfer agent 4-cyano-4-(ethylthioform Acylthio)valeric acid (the mass accounts for 0.8% of the monomer N-(3-aminop...

Embodiment 2

[0052] Example 2. Using a polymer adhesive containing a dopamine-like phosphate structure to carry out an adhesion experiment between material substrates:

[0053] 1) Dissolve 1.0 g of the polymer binder powder obtained in Example 1 in water, and constant volume to obtain 1 mL of a polymer binder aqueous solution with a concentration of 1 g / mL;

[0054] 2) Take 10 μL of the aqueous polymer binder solution in step 1) and drop them on the surface of the two material substrates in a 1cm×1cm area, and let it stand for a while to evaporate;

[0055] 3) Compress the two material substrates dripped with the aqueous polymer adhesive solution in step 2), clamp them, place them in a 60°C oven and heat them for 20 hours, take them out and cool them to room temperature, and then bond the two material substrates together;

[0056] Tensile tests are performed on two material substrates bonded together:

[0057] The multi-functional digital testing machine controlled by a microcomputer tes...

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Abstract

The invention discloses a polymer represented by a formula I as well as a preparation method and application of the polymer. In the formula I, the molecular weight is 50000-120000; the ratio of x to y is 1:(0.25-0.75); n is 10-50; n1=2 or 3; R1 is any one selected from the group of C1-C4 alkyl and phenyl; and R2 is anyone selected from the group of groups represented by a formula II and a formula III. The preparation method comprises the step of reacting N-(3-amino alkyl) methacrylamide hydrochloride containing amino, dyhydroxyl substituted ortho aromatic aldehyde, phosphite ester and methylacrylic acid polyethylene glycol single methyl ether in an organic solvent in the presence of triethylamine, an initiator and a chain transfer agent. The macromolecular adhesive prepared by the invention is a water-based adhesive, which is mussel-mimetic and environmentally friendly; the macromolecular adhesive is applied to adhering among a plurality of substrates; adhesion can be realized under a variety of conditions; the macromolecular adhesive has good adhesive power; furthermore, the macromolecular adhesive is simple in preparation method, abundant in raw material source and low in cost; and therefore, the macromolecular adhesive is a potential excellent adhesive material.

Description

technical field [0001] The invention belongs to the field of adhesives, and in particular relates to a polymer adhesive containing a dopamine-based phosphate-like structure, a preparation method and an application thereof. Background technique [0002] Polymer adhesive is a polymer material with cohesive force. It is solidified by chemical reaction or physical interaction between the material itself and the interface. It can connect or bond the same or different material interfaces to achieve the bonding effect. The polymer adhesives currently on the market mainly include epoxy resins, cyanoacrylates, phenolic resins, and urea-formaldehyde resins. These polymer adhesives are industrially produced, and organic solvents are usually used to help dissolve them during use. It is difficult to meet the increasingly stringent environmental hygiene and environmental protection requirements, and there are relatively large limitations in the use of biological and medical fields. Cont...

Claims

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Application Information

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IPC IPC(8): C08F290/06C08F220/60C08F2/38C09J151/08C09J5/00
Inventor 陶磊危岩张亚玲
Owner TSINGHUA UNIV
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