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Biomass mussel bionic polybenzoxazine containing catechol groups as well as synthesis method and application of biomass mussel bionic polybenzoxazine

A catechol group, polybenzoxazine technology, applied in aldehyde/ketone condensation polymer adhesives, adhesive types, organic chemistry, etc., can solve the problem of not preparing biomass mussel biomimetic adhesives And other issues

Active Publication Date: 2021-07-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there is no report on the preparation of biomass mussel biomimetic adhesive by the method of copolymerization of biomass polyphenols containing catechol groups-benzoxazine

Method used

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  • Biomass mussel bionic polybenzoxazine containing catechol groups as well as synthesis method and application of biomass mussel bionic polybenzoxazine
  • Biomass mussel bionic polybenzoxazine containing catechol groups as well as synthesis method and application of biomass mussel bionic polybenzoxazine
  • Biomass mussel bionic polybenzoxazine containing catechol groups as well as synthesis method and application of biomass mussel bionic polybenzoxazine

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preparation example Construction

[0021] According to the present invention, the preparation method of the biomass mussel biomimetic polybenzoxazine containing catechol group comprises the following steps:

[0022] (1) Mix phenolic compound, amine compound, formaldehyde and solvent, stir evenly, react at a temperature of 80-90°C, remove the solvent after the reaction is completed, and dry in vacuum to obtain benzoxazine monomer;

[0023] (2) Dissolve biomass polyphenols containing catechol groups in a solvent, add them to benzoxazine monomers, and mix uniformly; polymerize at 100-200°C to obtain catechol group-containing polyphenols Novel Biomimetic Polybenzoxazines of Mussel Biomass.

[0024] According to the present invention, preferably, the amine compound described in step (1) is aniline, dodecylamine, furylamine, methylamine, ethylamine, p-toluidine, allylamine, ethylenediamine, propylenediamine , butylenediamine, pentamethylenediamine, hexamethylenediamine, heptanediamine, octanediamine, 3-(2-aminoethyl...

Embodiment approach

[0034] According to the present invention, the preparation method of the biomass mussel biomimetic polybenzoxazine containing catechol group, a preferred embodiment, comprises the following steps:

[0035] (1) Add 20-80 parts by mass of amine compounds, 20-75 parts by mass of phenolic compounds, 15-50 parts by mass of formaldehyde and 30-100 parts by mass of solvents into the reaction vessel in sequence, at 60-120°C The reaction was stirred for 1-36 hours, the reaction was stopped, and the solvent was removed to obtain the benzoxazine monomer;

[0036] (2) Then 10-30 parts by mass of biomass polyphenols containing catechol groups are dissolved in 10-20 parts by mass of solvent, added to benzoxazine monomers of 40-120 parts by mass, and uniformly mixed ; Finally, the above-mentioned mixed system is polymerized at 100-200°C for 10-24 hours to obtain a new type of biomass mussel biomimetic polybenzoxazine containing catechol groups.

[0037] According to the present invention, t...

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Abstract

The invention relates to biomass mussel bionic polybenzoxazine containing catechol groups as well as a synthesis method and application of the biomass mussel bionic polybenzoxazine. The preparation method comprises the steps of firstly, taking an amine compound, a phenolic compound and formaldehyde as raw materials, and synthesizing monocyclic, bicyclic and polycyclic benzoxazine monomers through Mannich reaction; and then copolymerizing biomass polyphenol containing the catechol groups with the benzoxazine monomer so as to obtain the biomass mussel bionic polybenzoxazine copolymer containing the catechol groups. The introduction of the catechol groups enables the bonding strength of the polybenzoxazine to reach 6.03 + / -0.58 MPa to the maximum, and the bonding strength is improved by 113%. The method provided by the invention not only greatly improves the molecular design flexibility of the biomass mussel bionic polybenzoxazine containing catechol groups, but also provides a simpler and more efficient method for synthesis of the biomass mussel bionic polybenzoxazine. The bonding performance of polybenzoxazine synthesized by the method is remarkably improved, excellent bonding performance is shown, and the polybenzoxazine has potential application value in the field of adhesives.

Description

technical field [0001] The invention relates to the synthesis of a novel polybenzoxazine containing catechol groups and its application in the field of adhesives. It has the characteristics of renewable raw materials and significantly improved polymer bonding performance. It belongs to the field of functional polymer materials. Background technique [0002] Mussels are molluscs that live in the marine environment. Podoproteins secreted by mussels have been found to exhibit excellent bonding properties to various materials including metals, ceramics and polymers. In 1981, Waite et al. confirmed that the catechol group played a key role in the excellent adhesive properties of mussel foot protein. This important discovery has led many researchers to have great research interest in mussel biomimetic adhesives containing catechol groups. [0003] The types of mussel biomimetic adhesives reported so far mainly include: polystyrene, polyacrylamide, polyethylene glycol, polyamide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G14/073C09J161/34C07D413/06C07D413/14
CPCC08G14/06C09J161/34C07D413/14C07D413/06
Inventor 鲁在君何友军王小溪王凯
Owner SHANDONG UNIV
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