Method for preparing shape memory polymer through non-covalent modification on graphene by 3,4,9,10-perylenetetracarboxylic dianhydride

A technology of non-covalent modification and memory polymer, which is applied in the field of preparing shape memory polymer by using perylene anhydride non-covalent modification of graphene, can solve problems such as no literature reports, and achieve excellent mechanical properties, simple preparation process, and easy operation. simple effect

Active Publication Date: 2017-06-27
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

This idea has not been reported in the literature

Method used

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Examples

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Embodiment

[0013] (1) Add 0.02 grams of graphene to 80 milliliters of N-methylpyrrolidone, ultrasonically disperse for 45 minutes, then add 0.0037 grams of zinc acetate, 0.0392 grams of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 grams of trihydroxy Methylaminomethane, continue to ultrasonically disperse for 45min, and then react at 180°C for 12h under a nitrogen atmosphere. After the reaction is completed, pour the reaction solution into absolute ethanol to precipitate the material, filter, and the resulting filtrate is vacuum-dried to obtain The purple-black product is non-covalently modified graphene with perylene anhydride.

[0014] (2) Put 4.0 g of polycaprolactone diol with a weight average molecular weight of 1000 into a round-bottomed flask, heat to 80°C under a nitrogen atmosphere and magnetically stir until it melts, then add 20 ml of N,N-dimethyl methyl formamide and 0.2 ml dibutyltin dilaurate, heat the mixture to 105°C for 20 minutes to remove water, then cool do...

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Abstract

The invention discloses a method for preparing a shape memory polymer through non-covalent modification on graphene by 3,4,9,10-perylenetetracarboxylic dianhydride. The method includes adding 0.02 g of graphene into 80 milliliters of N-methylpyrrolidone, performing ultrasonic dispersion for 0.5-1 hour, adding 0.0037 g of zinc acetate, 0.0392 g of 3,4,9,10-perylenetetracarboxylic dianhydride and 0.0242 g of tris(hydroxymethyl)aminomethane, continuing to perform ultrasonic dispersion for 0.5-1 hour, reacting in a nitrogen atmosphere for 10-14 hours at 180 DEG C, pouring reaction liquid into absolute ethyl alcohol to precipitate and discharge after the reaction is terminated, filtering, subjecting a filtered substance to vacuum drying to obtain graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride, and enabling the graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride to react with HDI and polycaprolactone diol so as to obtain the shape memory polymer. The method has the advantages that the method is simple to operate, particularly, a preparation process of the graphene non-covalently modified by the 3,4,9,10-perylenetetracarboxylic dianhydride is quite simple and easy to popularize, and synergetic enhancement effect of the 3,4,9,10-perylenetetracarboxylic dianhydride and the graphene in terms of performance is fully utilized, so that the prepared shape memory polymer is excellent in mechanical performance, shape memory performance and thermal performance.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, and in particular relates to a method for preparing shape memory polymers by using perylene anhydride to non-covalently modify graphene. Background technique [0002] Graphene is a new carbon material with a single-layer two-dimensional honeycomb lattice structure formed by densely packed carbon atoms. It has a large specific surface area and a π-π conjugated structure. As an ideal two-dimensional crystal material, graphene It exhibits many excellent properties, such as stable chemical properties, high mechanical strength, excellent electrical and thermal properties, etc. These unique properties of graphene make it have broad application prospects in sensing devices, composite materials, energy storage devices, electronic devices and other fields. Studies have found that its Young's modulus is 1100GPa, and its fracture strength reaches 130GPa, which is much higher than the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/10C08G18/42C08G18/73C08G18/38C08G18/66C08K9/04C08K3/04
CPCC08G18/10C08G18/3846C08G18/4277C08G18/6662C08G18/73C08K3/04C08K9/04C08L2201/12
Inventor 赵良传徐旭李裕琪成竞祯叶丞东陆绍荣韦春
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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