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Synthetic method and application of trehalose modified PNIPAm temperature-sensitive intelligent hydrogel

A synthesis method and technology of trehalose, applied in the field of synthesis of PNIPAm thermosensitive smart hydrogel, can solve the problems of slow thermal response rate, low durability and reusability of thermosensitive hydrogel, unfavorable practical application, etc., and achieve enhanced repeatability. Effectiveness of availability, improved thermal response rate, excellent energy saving performance

Pending Publication Date: 2022-07-05
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since PNIPAm is a single-network thermosensitive hydrogel, its mechanical strength is poor, and its durability and reusability are low; in addition, the thermal response rate of PNIPAm thermosensitive hydrogel is also slow, ΔT sol and ΔT lum Not ideal either, not conducive to practical application

Method used

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  • Synthetic method and application of trehalose modified PNIPAm temperature-sensitive intelligent hydrogel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1:1:0, the LCST of the temperature-sensitive material is 32°C, and the volume shrinks by 20% after the phase transition.

Embodiment 2

[0029] Example 2: 1:10, the LCST of the temperature-sensitive material is 31°C, and the volume shrinks by 15% after the phase transition.

Embodiment 3

[0030] Example 3: 1:20, the LCST of the temperature-sensitive material is 29°C, and the volume shrinks by 10% after the phase transition.

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Abstract

The invention relates to a synthesis method and application of trehalose modified PNIPAm temperature-sensitive intelligent hydrogel, and the synthesis method comprises the following steps: 1, respectively adding N-isopropylacrylamide and N, N '-methylene bisacrylamide into a trehalose solution, and mixing to obtain a mixed solution; 2, adding ammonium persulfate into the mixed solution in the previous step, and stirring; 3, adding N, N, N ', N'-tetramethylethylenediamine into the mixed solution obtained in the previous step, and stirring to obtain a gel solution; and 4, placing at the temperature of 20-30 DEG C for 2-3 hours to obtain the trehalose modified PNIPAm temperature-sensitive hydrogel. The invention provides a simple preparation process of the trehalose modified PNIPAm-Trehalose temperature-sensitive hydrogel and a preparation method of the trehalose modified PNIPAm-Trehalose intelligent window, and a new way is opened up for energy conservation of buildings.

Description

technical field [0001] The invention relates to the field of hydrogel synthesis methods, in particular to a synthesis method and application of a trehalose-modified PNIPAm temperature-sensitive intelligent hydrogel. Background technique [0002] PNIPAm thermosensitive hydrogels were synthesized by in situ polymerization in deionized water. Since PNIPAm is a single-network thermosensitive hydrogel, its mechanical strength is poor, and its durability and reusability are low; in addition, the thermal response rate of PNIPAm thermosensitive hydrogel is also slow, ΔT sol and ΔT lum It is not ideal and is not conducive to practical applications. SUMMARY OF THE INVENTION [0003] A method for synthesizing a trehalose-modified PNIPAm thermosensitive smart hydrogel, comprising the following steps: [0004] Step 1. Dissolve Trehalose (0, 2, 4 and 6 g) in 20 ml of deionized water to form trehalose solutions with mass fractions of 0%, 10%, 20% and 30% respectively; [0005] Step 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08J3/24C08L33/24C08L5/04E06B9/24
CPCC08J3/075C08J3/246E06B9/24C08J2333/24C08J2433/24C08J2305/04
Inventor 杨永生冯宇琴马文霞张刚杨铭余韵滋李海波
Owner WUHAN TEXTILE UNIV
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