• 专利标题:   Preparation of poly N-isopropyl acrylamide three-dimensional self-deforming hydrogel for development of complex biomedical implants, involves preparing polymerized poly N-isopropyl acrylamide hydrogel by injecting prepared solution in glass mold, fixing under UV lamp, and removing from glass mold.
  • 专利号:   CN115521400-A
  • 发明人:   DUAN J, XU Z, SUI K, FAN W
  • 专利权人:   UNIV QINGDAO
  • 国际专利分类:   B33Y070/00, C08F002/48, C08F220/54, C08F222/38, C08J003/075, C08L033/24
  • 专利详细信息:   CN115521400-A 27 Dec 2022 C08F-220/54 202317 Chinese
  • 申请详细信息:   CN115521400-A CN11613680 27 Dec 2021
  • 优先权号:   CN11613680

▎ 摘  要

NOVELTY - Preparation of poly N-isopropyl acrylamide three-dimensional (3D) self-deforming hydrogel involves (S1) adding N-isopropylacrylamide, N,N'-methylenebisacrylamide, UV light absorber and 2-hydroxy-2-methyl propiophenone in deionized water, and ultrasonically treating to obtain poly N-isopropyl acrylamide (PNIPAM) solution, (S2) injecting poly N-isopropyl acrylamide solution into glass mold, covering the cut photomask on the surface of glass mold to the requirement of pre-designed three-dimensional structure, fixing glass mold under UV lamp, and performing unidirectional illumination or bidirectional illumination for 4-8 hours to obtain polymerized poly N-isopropyl acrylamide hydrogel, and (S3) removing polymerized poly N-isopropyl acrylamide hydrogel from the glass mold to obtain pre-designed three-dimensional structure poly N-isopropylacrylamide three-dimensional self-deforming hydrogel. USE - Preparation of poly N-isopropyl acrylamide three-dimensional self-deforming hydrogel used for development of complex biomedical implants and soft robots. ADVANTAGE - The method undergoes self-deforming behavior under external stimulation for the development of complex biomedical implants and soft robots.