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Preparation of Maleoyl Chitosan and Its Application in Dialysis Paper
Received:May 13, 2022  
DOI：10.11980/j.issn.0254-508X.2023.01.002
Key Words:chitosan  maleic anhydride  dialysis paper  physical properties  antibacterial property
Fund Project:浙江省重点研发计划（2021C01094）；衢州市科技计划项目（2021K48）。
Author NameAffiliationPostcode
ZUO Jinhua School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
ZHANG Feiyang School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
WU Jinhan School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
WANG Huile School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
YI Caifu Zhejiang Hengda New Material Co.， Ltd.， Quzhou， Zhejiang Province， 324401 324401
ZHAO Huifang School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
SHA Lizheng* School of Environmental and Natural Resource， Zhejiang University of Science and Technology， Hangzhou， Zhejiang Province， 310023 310023
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Abstract:In this study， chitosan （CS） and maleic anhydride （MA） were used as the main raw materials to prepare maleoyl chitosan （MAAC）via TEMPO oxidation. The dialysis paper was prepared with the MAAC as the additives. The effects of the mass ratio of CS and MA on the substitution degree and solubility of the MAAC were studied， and the effects of MAAC dosage on the physical properties， air permeability and antibacterial properties of dialysis paper were also investigated. The results showed that the substitution degree of MAAC was higher and the solubility was better when the mass ratio of CS， MA and TEMPO was 1∶1.0∶0.08， and the light transmittance of the solution was greater than 80% under neutral and alkaline conditions. The dry and wet tensile index and tear index of dialysis paper after adding 2.0% MAAC were increased by 10.0%， 96.8% and 20.3%， respectively. The air permeability of dialysis paper after adding 2.0% MAAC reached 8.98 μm/（Pa·s）， with a good antibacterial property.
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