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Polymer material with shape and color memory function as well as preparation method and application of polymer material

A polymer material and color technology, applied in the field of shape memory polymer materials, can solve the problems of application limitation, single function reversible deformation, no other functions, etc., and achieve the effects of low production cost, good mechanical properties, and simple preparation process.

Active Publication Date: 2021-11-23
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, current research is mainly focused on the design and synthesis of two-way reversible shape memory polymer materials, and most of the synthesis process requires harsh reaction conditions, such as: metal catalysts, light, high temperature and high pressure, etc. (Adv.Mater.,2013,25, 4466-4469; Macromolecules, 2014, 47, 1768-1776; Macromolecules, 2017, 50, 8570-8579; ACS Appl. Mater. Interfaces, 2017, 9, 4882-4889), and the final material only has a single function of reversible Deformation, no other functions, limited application

Method used

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  • Polymer material with shape and color memory function as well as preparation method and application of polymer material
  • Polymer material with shape and color memory function as well as preparation method and application of polymer material
  • Polymer material with shape and color memory function as well as preparation method and application of polymer material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of polymer material with shape and color memory function, its preparation method comprises the following steps:

[0037] 1) Mix 3 g of caprolactone and 0.2 g of pentaerythritol, react at 130° C. for 12 h under a nitrogen atmosphere, then add 2 mL of chloroform to the reaction product, and then add the obtained solution dropwise into 200 mL of methanol for precipitation. Collect the precipitate, dry it in vacuum at 30°C to constant weight, and obtain the prepolymer P1;

[0038] 2) 0.4g of prepolymer P1, 49.4mg of compound M3 (refer to RSC Adv., 2015, 5, 77922-77931 for the synthesis method; Sci.China Chem., 2016, 59, 1554-1560), 6mg of (Refer to J.Mater.Chem.C 2013,1,4640 for the synthesis method) and 2.5mg of DABCO were dispersed in 2mL of tetrahydrofuran, stirred at 25°C for 60s, then poured into a polytetrafluoroethylene mold, and transferred to a fume hood The solvent was left to evaporate completely and naturally for 2 days, and the polymer material PC1 wit...

Embodiment 2

[0053] A kind of polymer material with shape and color memory function, its preparation method comprises the following steps:

[0054] 1) Mix 3g of lactide and 84mg of pentaerythritol, react at 120°C for 24h under a nitrogen atmosphere, then add 2mL of chloroform to the reaction product, and then add the obtained solution dropwise into 200mL of methanol for precipitation and collection The precipitate was vacuum-dried at room temperature to constant weight to obtain prepolymer P2;

[0055] 2) 0.4g of prepolymer P2, 35.6mg of M3 (synthetic method refer to RSC Adv., 2015, 5, 77922-77931; Sci.China Chem., 2016, 59, 1554-1560), 6mg of (Refer to J.Mater.Chem.C 2013,1,4640 for the synthesis method) and 2.5mg of DABCO were dispersed in 2mL of tetrahydrofuran, stirred at 25°C for 60s, then poured into a polytetrafluoroethylene mold, and transferred to a fume hood Leave it for 2 days for the solvent to evaporate completely and naturally to obtain the polymer material PC2 with shape a...

Embodiment 3

[0063] A kind of polymer material with shape and color memory function, its preparation method comprises the following steps:

[0064] 0.4g of four-arm polyethylene glycol P3, 17.8mg of M3 (refer to RSC Adv., 2015, 5, 77922-77931 for the synthesis method; Sci.China Chem., 2016, 59, 1554-1560), 6mg of (Refer to J.Mater.Chem.C 2013,1,4640 for the synthesis method) and 2.5mg of DABCO were dispersed in 2mL of tetrahydrofuran, stirred at 25°C for 60s, then poured into a polytetrafluoroethylene mold, and transferred to a fume hood Leave it for 2 days for the solvent to evaporate completely and naturally to obtain the polymer material PC3 with shape and color memory functions.

[0065] The preparation reaction of the polymer material PC3 with shape and color memory function of the present embodiment is as follows:

[0066]

[0067] Performance Testing:

[0068] The fluorescence spectrum in the film temperature rising process (from -100°C to 40°C) prepared from the polymer mater...

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PUM

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Abstract

The invention discloses a polymer material with a shape and color memory function and a preparation method and application of the polymer material. The preparation method of the polymer material with the shape and color memory function comprises the following steps: 1) mixing a cyclic monomer and a polyhydroxy compound monomer, and carrying out a ring-opening reaction in a protective atmosphere to obtain a prepolymer; and 2) dispersing the prepolymer, a binary alkyne monomer, aggregation-induced emission molecules and an organic base catalyst in a solvent, and carrying out click polymerization reaction to obtain the polymer material with the shape and color memory function. The polymer material disclosed by the invention can generate reversible changes of luminous color, luminous intensity and shape under external stimulation, is relatively high in mechanical property, simple in preparation process and low in production cost, and has a wide application prospect in the fields of biological bionics, intelligent driving, dynamic anti-counterfeiting and the like.

Description

technical field [0001] The invention relates to the technical field of shape-memory polymer materials, in particular to a polymer material with shape and color memory functions and its preparation method and application. Background technique [0002] Shape memory polymer material is a kind of material with an initial shape, which changes its initial shape under certain conditions and fixes it, and then under external stimuli (for example: heat, light, electric field, magnetic field, microwave, ultrasound, solvent, metal ion and pH, etc.) smart materials that can return to their original shape. Due to its unique deformation function, shape memory polymer materials have been realized in industrial applications (for example: smart textiles, aerospace equipment and biomedical equipment, etc.). Traditional shape memory polymer materials only have one-way shape memory behavior, that is, they cannot return to their temporary shape under external stimuli after returning to their or...

Claims

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Application Information

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IPC IPC(8): C08G65/00C08G63/664C08K5/3432C08K5/315C08K5/46
CPCC08G65/002C08G63/664C08K5/3432C08K5/315C08K5/46C08L2201/12
Inventor 唐本忠秦安军王考进侣涵杜宪超
Owner SOUTH CHINA UNIV OF TECH
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