Preparation method of light-heat sensitive quick response plural gel
A fast-response, composite gel technology, applied in the field of hydrogel preparation, can solve the problems of poor mechanical properties of gel, slow response speed, limited application of light-responsive gel, etc. Effect
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Embodiment 1
[0041] A method for preparing a light- and heat-sensitive fast-response composite gel, the process of which is as follows:
[0042] (1) Co-dissolve the photosensitive monomer, N-vinylpyrrolidone, POSS cross-linking agent OvPOSS, and organic cross-linking agent BIS in tetrahydrofuran and place in a container. Stir in a water bath at 50°C for 30 minutes under nitrogen protection until uniform Transparent, after rising to 60°C and adding initiator AIBN, stirring for 10 minutes, sealing, reacting at 60°C for 24 hours, taking out the gel, and repeatedly washing with tetrahydrofuran and water to remove unreacted monomers, to obtain The first network gel A;
[0043] Wherein, the quality of the photosensitive monomer is 6.5% of the quality of tetrahydrofuran, the quality of N-vinylpyrrolidone is 5.3% of the quality of tetrahydrofuran, and the quality of the POSS crosslinking agent OvPOSS is 12.6% of the sum of the quality of the photosensitive monomer and N-vinylpyrrolidone, The qual...
Embodiment 2
[0052] A method for preparing a light- and heat-sensitive fast-response composite gel, the process of which is as follows:
[0053] (1) Co-dissolve the photosensitive monomer, N-vinylpyrrolidone, POSS cross-linking agent OvPOSS, and organic cross-linking agent BIS in tetrahydrofuran and place in a container. Stir in a water bath at 50°C for 30 minutes under nitrogen protection until uniform Transparent, after rising to 60°C and adding initiator AIBN, stirring for 10 minutes, sealing, reacting at 60°C for 24 hours, taking out the gel, and repeatedly washing with tetrahydrofuran and water to remove unreacted monomers, to obtain The first network gel A;
[0054] Wherein, the quality of the photosensitive monomer is 7.3% of the quality of tetrahydrofuran, the quality of N-vinylpyrrolidone is 5.3% of the quality of tetrahydrofuran, and the quality of the POSS crosslinking agent OvPOSS is 15.7% of the sum of the quality of the photosensitive monomer and N-vinylpyrrolidone, The qual...
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