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Hyperbranched poly (ester-amine) containing functional groups on both surface and interior and preparation method of hyperbranched poly (ester-amine)

A technology of hyperbranched polymer and functional group, which is applied in the field of hyperbranched polymer and its preparation, can solve the problem that the internal cavity of hyperbranched polymer cannot be fully utilized, and achieve the effect of simple method

Active Publication Date: 2018-02-02
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Limited by the synthesis method and monomer type, using AB 2 、A 2 +B 3 、A 2 +CB 2 、A 2 +B'B 2 Most of the hyperbranched polymers prepared by such polymerization systems only have functional groups on the surface, which leads to the inability of the internal cavity of the hyperbranched polymer to be fully utilized.

Method used

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  • Hyperbranched poly (ester-amine) containing functional groups on both surface and interior and preparation method of hyperbranched poly (ester-amine)
  • Hyperbranched poly (ester-amine) containing functional groups on both surface and interior and preparation method of hyperbranched poly (ester-amine)
  • Hyperbranched poly (ester-amine) containing functional groups on both surface and interior and preparation method of hyperbranched poly (ester-amine)

Examples

Experimental program
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Effect test

Embodiment example 1

[0022] Into the 500 mL flask was added 208.36 g (3.467 mol) of ethylenediamine. Then 5.000g (0.0693mol) of butylene oxide was dissolved in 50mL of methanol, and was added dropwise to the reaction system under a nitrogen atmosphere, and reacted for 12 hours after the dropwise addition; after the reaction, the reaction solution was rotary evaporated to remove excess ethylene glycol amine to give the product 1-((2-aminoethyl)amino)-2-butanol (5.032 g, yield 54.88%) as a light yellow liquid.

[0023] The mass spectrogram of gained 1-((2-aminoethyl) amino)-2-butanol in embodiment case 1 is as attached figure 2 As shown, the theoretical molecular weight of 1-((2-aminoethyl)amino)-2-butanol is 132.2, and the LC-MS test result is m / z 133.1 ((M+H) + / 1), the test results are consistent with the theoretical calculation values.

Embodiment example 2

[0025] Into the 500 mL flask was added 208.36 g (3.467 mol) of ethylenediamine. Then 5.137g (0.0693mol) of glycidol was dissolved in 50mL of methanol, and was added dropwise to the flask under a nitrogen atmosphere, and stirred for 12 hours after the dropwise addition; after the reaction, the reaction solution was rotary evaporated to remove excess ethylenediamine to obtain The pale yellow liquid product 3-((2-aminoethyl))-1,2-propanediol (5.866 g, 63.08% yield).

Embodiment example 3

[0027] Into the 500 mL flask was added 208.36 g (3.467 mol) of ethylenediamine. Then 4.931g (0.0693mol) of 3,4-epoxy-1-butene was dissolved in 50mL of methanol, and was added dropwise to the flask under a nitrogen atmosphere, and stirred for 12 hours after the addition; after the reaction, the reaction solution was rotated Excess ethylenediamine was removed by evaporation to give the product 1-((2-aminoethyl)amino)-2-hydroxy-3-butene as a light yellow liquid (4.719 g, 52.31% yield).

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Abstract

The invention relates to hyperbranched poly (ester-amine) containing functional groups on both the surface and the interior and a preparation method of the hyperbranched poly (ester-amine). The preparation method is characterized in that an A<2+>RB'B2 type monomer (A represents acrylate, B represents primary amine, B' represents secondary amine and R represents hydroxyl or alkyl ene which is not involved in polymerization) is utilized; a poly (ester-amine) hyperbranched polymer of which the surface has an acrylate group and an internal branching unit has a reaction point R (hydroxyl or alkyl ene) is synthesized by adopting a Michael addition polymerization reaction. The preparation method of the hyperbranched poly (ester-amine), disclosed by the invention, has the advantages of simple steps, selectable reaction and no possibility of generating gel; in addition, the prepared hyperbranched poly (ester-amine) contains functional reactive groups on both the surface and the interior.

Description

technical field [0001] The invention relates to a hyperbranched poly(ester-amine) with functional groups on the surface and inside and a preparation method thereof, belonging to the field of polymer synthesis. Background technique [0002] At present, there are four main methods for the preparation of hyperbranched polymers, which are polycondensation reaction, addition polymerization reaction, self-condensation vinyl polymerization (SCVP) and ring-opening polymerization. Among them, the most mature method is through AB 2 The self-condensation reaction of type monomers to prepare hyperbranched polymers is universal and practical. But currently AB 2 Type monomers have not been commercialized in large quantities, and there are only several ABs on the market 2 Monomer is not enough to meet the demand, so utilize A 2 +B 3 The polymerization of type monomers to prepare hyperbranched polymers has attracted people's attention. but A 2 +B 3 As an active multifunctional react...

Claims

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Application Information

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IPC IPC(8): C08G83/00
CPCC08G83/005
Inventor 李小杰高翔罗静施冬健朱叶陈明清
Owner JIANGNAN UNIV
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