- Oligomeric epoxide-amine adducts based on 2-amino-N-isopropylacetamide and a-amino-ε-caprolactam: Solubility in presence of cyclodextrin and curing properties
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2-Amino-N-isopropylacetamide and α-amino-ε-caprolactam were reacted with glycerol diglycidyl ether to give novel oligomeric thermoresponsive epoxide-amine adducts. These oligomers exhibit a lower critical solution temperature (LCST) behavior in water. The solubility properties were influenced with randomly methylated β-cyclodextrin (RAMEB-CD) and the curing properties of the amine-epoxide mixtures were analyzed by oscillatory rheology and differential scanning calorimetry, whereby significant differences in setting time, viscosity, and stiffness were observed.
- Fischer, Julian,Ritter, Helmut
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- Acryloyl-N-isopropylglycinamide monomer and preparation method thereof
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The invention discloses an acryloyl-N-isopropylglycinamide monomer and a preparation method thereof. Specifically, N-(tert-butoxycarbonyl) glycine methyl ester, isopropylamine and acryloyl chloride are used as raw materials and react under a certain condition to generate acryloyl-N-isopropylglycinamide. The acryloyl-N-isopropylglycinamide has double bonds and can be subjected to free radical polymerization. Meanwhile, acryloyl-N-isopropylglycinamide has hydrophobic isopropyl and two hydrophilic amide groups, and the hydrophilic amide groups can provide a double hydrogen bond structure. Isopropyl can endow polymer molecules with temperature characteristic similar to that of poly (N-isopropylacrylamide), and the double hydrogen bond structure enables multiple hydrogen bond effects to be achieved between polymer molecules and in molecules. Therefore, the monomer can be polymerized to form a polymer, so that a polymer material with special temperature sensitivity is obtained, and the polymer material has potential application value in the field of bioengineering.
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Paragraph 0016; 0022-0024; 0029-0031; 0036-0038
(2021/03/30)
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