Preparation of novel biodegradable polyampholyte: Partially dicarboxylated chitosan

Shuichi Matsumura, Eiji Yokochi, Isananto Winursito, Kazunobu Toshima

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Amphoteric and biodegradable polycarboxylates having a varying amount of unreacted glucosamine moieties as the biologically active group as well as the biodegradable moiety were prepared by the partial oxidation of chitosan using sodium periodate at pH 3.0 followed by oxidation with sodium chlorite. Partially dicarboxylated chitosan containing more than about 50% unreacted glucosamine residue showed good biodegradation using activated sludge for 28 days.

Original languageEnglish
Pages (from-to)215-216
Number of pages2
JournalChemistry Letters
Issue number3
Publication statusPublished - 1997

ASJC Scopus subject areas

  • General Chemistry


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