A kind of comb polymer containing reversible hydrogen bond and preparation method thereof

A comb-shaped polymer and polymer technology, which are applied in the field of comb-shaped polymers containing reversible hydrogen bonds and their preparation, can solve the problem that self-healing polymers are not much researched, etc., and achieve high product purity and high conversion rate. , the effect of mild reaction conditions

Active Publication Date: 2016-08-10
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is not much research on comb-shaped self-healing polymers

Method used

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  • A kind of comb polymer containing reversible hydrogen bond and preparation method thereof
  • A kind of comb polymer containing reversible hydrogen bond and preparation method thereof
  • A kind of comb polymer containing reversible hydrogen bond and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Synthesis of the main chain PS-co-PVBC:

[0026] St, VBC and AIBN were dissolved in anhydrous toluene, and after three cycles of freezing-vacuumizing-argon filling to remove water and oxygen in the system, the reaction was stirred at 75°C for 36h. After the reaction, precipitate with methanol and purify to obtain PS-co-PVBC, which is a white powder. Wherein, the mass ratio of total monomer to AIBN is 100:0.5, and the mass ratio of VBC and St x:y=1:10 is shown in Table 1.

[0027] Table 1

[0028] Example

St.

VBC

AIBN

1

100

10

0.55

[0029] 2. Synthesis of the PS-co-PVBC-g-PAM:

[0030] Dissolve PS-co-PVBC, methacrylamide (AM) and bPy in THF, three cycles of freezing-vacuumizing-argon to remove water and oxygen in the system, then add CuBr, and pass through three freezing- After the vacuum-argon cycle, the reaction was stirred at 65° C. for 24 hours, and the product was purified by dialysis to obtain the final comb-shaped...

Embodiment 2～4

[0034] 1. Synthesis of the main chain PS-co-PVBC:

[0035] The experimental procedure is the same as in Example 1. Wherein, the mass ratio of the total monomer to AIBN is 100:0.5, and the mass ratio of VBC and St is shown in Table 3.

[0036] table 3

[0037] Example

St.

VBC

2

100

5

3

100

15

4

100

20

[0038] 2. Synthesis of the PS-co-PVBC-g-PAM:

[0039] The experimental procedure is the same as in Example 1.

Embodiment 5～8

[0041] 1. Synthesis of the main chain PS-co-PVBC:

[0042] The experimental procedure is the same as in Example 1.

[0043] 2. Synthesis of the PS-co-PVBC-g-PAM:

[0044] The experimental procedure is the same as in Example 1. The ratio of benzyl moles to PAM moles is shown in Table 4.

[0045] Table 4

[0046] Example

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PUM

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Abstract

A comb-shaped polymer containing reversible hydrogen bonds and a preparation method thereof relate to a self-repairing material. The comb-shaped polymer containing the reversible hydrogen bonds is recorded as PS-co-PVBC-g-H-Bonding, PS-co-PVBC (PS) is utilized as a main chain, the polymer with hydrogen bond units is utilized as the lateral chain, and the relative molecular weight is 10000-100000. St, VBC and AIBN are dissolved into a solvent, reaction is conducted after water and oxygen in a system are removed through circulation of freezing, vacuumizing and argon filling, sedimentation is conducted through methyl alcohol after the reaction is finished, purification is conducted to obtain PS-co-PVBC, and a product is white powder. The PS-co-PVBC, a single body containing the hydrogen bonds, CuBr and a complexing agent are dissolved into the solvent to react, and dialysis purification is conducted after the reaction is finished to obtain a final product of the comb-shaped polymer containing the reversible hydrogen bonds.

Description

technical field [0001] The invention relates to a self-repairing material, in particular to a comb-shaped polymer containing reversible hydrogen bonds with PS and the like as the main chain and hydrogen bond-containing groups such as acrylamide as branch chains and a preparation method thereof. Background technique [0002] In recent years, research on how materials can achieve self-healing has received more and more attention. Self-healing materials have the ability to repair internal micro-cracks, which can greatly increase the service life of materials and increase the safety of materials. In recent years, research on self-healing materials has become more and more favored by researchers. At present, self-healing materials are mainly realized in the following ways: 1. External aid type, including microcapsules, micro-network structures, etc.; 2. Intrinsic type, including reversible hydrogen bonds, reversible covalent bonds, ionic bonds, etc. Hydrogen bonds are directiona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F212/14C08F8/30
Inventor 戴李宗刘诚袁丛辉陈国荣许一婷罗伟昂常迎李奇项佳懿何凯斌刘新瑜
Owner XIAMEN UNIV
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