Biodegradable temperature-sensitive hydrogel and method for preparing same

technical field [0001] The invention relates to the field of biomedical polymer materials, more specifically to a biodegradable temperature-sensitive hydrogel, and also to a preparation method of the hydrogel, which is made of konjac glucomannan thermal alkali crosslinking, freeze-thawing treatment The resulting gel is an interpenetrating polymer network composed of poly-N-isopropylacrylamide. Background technique [0002] Polymer hydrogel is a body-shaped network of hydrophilic polymers that can swell in water and retain a large amount of water without dissolving. The many uses of hydrogels in the fields of biochemistry, medicine, agriculture, and daily chemical industry have aroused the general attention of scientists. Poly(N-isopropylacrylamide) hydrogel is a widely used synthetic polymer material with temperature sensitivity, but its non-biodegradability limits its application in biomedicine. [0003] As a natural polymer polysaccharide, ko...