A kind of polymer material with shape and color memory function and its preparation method and application
A polymer material and color technology, applied in the field of shape memory polymer materials, can solve the problems of application limitations, single function, reversible deformation, and lack of other functions, and achieve low production cost, good mechanical properties, and simple preparation process.
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Embodiment 1
[0036] A polymer material with shape and color memory function, its preparation method comprises the following steps:
[0037] 1) Mix 3g of caprolactone and 0.2g of pentaerythritol, react at 130°C for 12h under nitrogen atmosphere, then add 2mL of chloroform to the reaction product, and then add the obtained solution dropwise to 200mL of methanol to carry out precipitation, Collect the precipitate and vacuum dry to constant weight at 30°C to obtain prepolymer P1;
[0038] 2) 0.4 g of prepolymer P1, 49.4 mg of compound M3 (for the synthesis method, refer to RSC Adv., 2015, 5, 77922-77931; Sci. China Chem., 2016, 59, 1554-1560), 6 mg 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, poured into a polytetrafluoroethylene mold, and transferred to a fume hood The solvent was left to evaporate completely naturally for 2 days, and the polymer material PC1 with shape and color memor...
Embodiment 2
[0053] A 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 nitrogen atmosphere, then add 2mL of chloroform to the reaction product, and then add the obtained solution dropwise to 200mL of methanol, carry out precipitation, collect The precipitate was vacuum-dried at room temperature to constant weight to obtain prepolymer P2;
[0055] 2) 0.4 g of prepolymer P2, 35.6 mg of M3 (for the synthesis method, refer to RSC Adv., 2015, 5, 77922-77931; Sci. China Chem., 2016, 59, 1554-1560), 6 mg 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, poured into a polytetrafluoroethylene mold, and transferred to a fume hood The solvent was left to evaporate completely naturally for 2 days, and the polymer material PC2 with shape and color memory ...
Embodiment 3
[0063] A polymer material with shape and color memory function, its preparation method comprises the following steps:
[0064] 0.4 g of four-arm polyethylene glycol P3, 17.8 mg of M3 (refer to RSC Adv., 2015, 5, 77922-77931 for the synthesis method; Sci. China Chem., 2016, 59, 1554-1560), 6 mg 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, poured into a polytetrafluoroethylene mold, and transferred to a fume hood The solvent was left to evaporate completely naturally for 2 days, and the polymer material PC3 with shape and color memory function was obtained.
[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 of the thin film prepared from the polymer material PC3 with shape and color memory function in this e...
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