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Reversible dynamic macroporous elastomer polymer material and its preparation method and application

An elastomeric polymer, dynamic technology, applied in the field of reversible dynamic macroporous elastomeric polymer materials and its preparation, can solve the problems of few explorations in applications, macroporous polymers cannot effectively reversibly switch pore structures, and lack of green and environmentally friendly preparations, etc. question

Active Publication Date: 2021-01-26
CHENGDU YUPING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] All in all, there is currently a lack of green and environmentally friendly methods for preparing responsive macroporous polymers. The prepared macroporous polymers cannot effectively reversibly switch their pore structures, and related applications are therefore rarely explored.

Method used

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  • Reversible dynamic macroporous elastomer polymer material and its preparation method and application
  • Reversible dynamic macroporous elastomer polymer material and its preparation method and application
  • Reversible dynamic macroporous elastomer polymer material and its preparation method and application

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Embodiment 1

[0097] The preparation method of obtaining the reversible dynamic macroporous polymer by the small molecule polymerization of this embodiment includes:

[0098] Mix 20g of 4-hydroxybutyl acrylate, 0.2g of 1,6-hexanediol diacrylate, 0.1g of azobisisobutyronitrile and 0.2g of poly(4-hydroxybutyl acrylate) , to obtain a viscous polymeric precursor solution. Then it was mixed with 3.1 g of polyvinyl alcohol water containing 1 wt%, and vigorously stirred to obtain an emulsion. The obtained emulsion was cured for 1 day under room temperature, natural light and exposure conditions, and a dynamically reversible macroporous polymer in a solid state was obtained after curing.

[0099] The reversible dynamic macroporous elastomeric polymer material obtained in this embodiment is a transparent material.

Embodiment 2

[0101] The preparation method of obtaining the reversible dynamic macroporous polymer by the small molecule polymerization of this embodiment includes:

[0102] Mix 20g of 4-hydroxybutyl acrylate, 0.2g of 1,6-hexanediol diacrylate, 0.1g of azobisisobutyronitrile and 0.2g of poly(4-hydroxybutyl acrylate) , to obtain a viscous polymeric precursor solution. Then it was mixed with 3.1 g of pure water and vigorously stirred to obtain an emulsion. The resulting emulsion was pre-cured for 15 minutes under sealed conditions at 40°C; then the sample was placed in a desiccator with the open open, and vacuumed at room temperature until a transparent sample was obtained, then the sample was taken out, and the temperature was raised to 40°C for curing for 1 day . A dynamically reversible macroporous polymer in a solid state is obtained after curing.

[0103] The reversible dynamic macroporous elastomeric polymer material obtained in this embodiment is a transparent material.

Embodiment 3

[0105] In this embodiment, the preparation method for preparing a reversible dynamic macroporous elastomeric polymer through a crosslinkable polymer precursor includes:

[0106] A mixture of 10 g of A and 10 g of B was used to obtain a silicone precursor. The silicone precursor and 3 g of an aqueous solution containing 1 wt % polyvinyl alcohol were mixed and stirred for 30 min, and the obtained emulsion was poured on the substrate and cured at room temperature for 6 days to obtain a reversible dynamic macroporous elastomeric polymer material.

[0107] The reversible dynamic macroporous elastomeric polymer material obtained in this embodiment is a transparent material.

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Abstract

The invention discloses a reversible dynamic macroporous elastomer polymer material, a preparation method and application thereof. The invention mixes and stirs the polymerizable precursor or the crosslinkable polymer precursor and the template liquid insoluble in the precursor evenly, and solidifies the obtained emulsion to prepare a reversible dynamic macroporous elastomer polymer material. The novel elastic body polymer material of the reversible dynamic porous structure of the present invention has a simple and easy synthesis process, is environmentally friendly, has high yield, low preparation cost, and is easy to popularize. The reversible dynamic macroporous elastomeric polymer material of the present invention has an adjustable reversible multi-level pore structure, has good convertible solar light reflection performance and infrared radiation performance, high solution storage capacity, and adjustable surface roughness, It belongs to macroporous polymer material, and has broad application prospects in radiative refrigeration, solar heating, and intelligent interface.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reversible dynamic macroporous elastomer polymer material and its preparation method and application. Background technique [0002] Macroporous polymers (macroporous polymers, also known as polymer macroporous materials) are a class of materials that use polymers as substrates to form interpenetrating or closed pore structures. The main cavity diameters are above 50 nanometers (according to international IUPAC standard). Macroporous polymers can combine the advantages of macroporous materials and polymer materials. In addition to the large surface area and adjustable pore size of macroporous materials, they also have high mechanical strength, good thermal stability, and good solvent resistance. , easy processing, and low raw material prices have been widely used in catalysis, energy storage, sound insulation, gas separation, water treatment, drug delivery and other f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/14C08L33/14C08L83/04C08F220/20C08F222/14
CPCC08F220/20C08J9/14C08J9/142C08J2201/0502C08J2333/14C08J2383/04C08J2483/04
Inventor 崔家喜王宏
Owner CHENGDU YUPING TECH CO LTD
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