섬유

preparation of chitosan and modified chitosan membranes for ultrafiltration and dialysis and determination of membrane properties

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 311
chitosan and modified chitosan membranes for ultrafiltration and dialysis were prepared by the casting method with various acids as the salt-forming agents. sulfamic acid and glutamic acid, as well as some monocarboxylic acids, were found to be excellent salt-forming agents. to improve the solvent-resistant properties of the chitosan membranes, two chemical procedures for the modification were employed. one is the cross-linking of the membrane by the photochemical reaction with an aromatic diazido-compound, and the other is chemical modification of chitosan by carbamoylation. the latter procedure was especially effective; thus a membrane which exhibited high performance and high solvent-resistance could be fabricated. (author abstract) 10 refs. in japanese
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