title: Quaternary ammonium salt of chitosan: preparation and antimicrobial property for paper.
abstract: A series of 2-hydroxypropyltrimethyl ammonium chloride chitosan (HACC) was prepared by the reaction of chitosan with glycidyl trimethyl ammonium chloride. Structure of HACC was characterized by FT IR and1H NMR spectroscopies, and it was proved that substitution reaction mainly occurs on theNelement. Antimicrobial activities of HACC was examined againstS. aureus,E. coli, andA. niger. Results indicatd that the inhibitory effects of HACC solutions were varied with HACC concentration, quaternization degrees, pH values, metal ions, and heat treatment. The antimicrobial properties of handsheets prepared from HACC were studied by the inhibition zone method, and the sheets had good antimicrobial properties againstS. aureusandE. coli, and low inhibition rate againstA. niger.
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science and Technology, Tianjin 300457, China ; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors.forename: Pengtao
authors.initials: P
authors.lastname: Liu
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
authors.forename: Weisheng
authors.initials: W
authors.lastname: Meng
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
authors.forename: Shuai
authors.initials: S
authors.lastname: Wang
authors.affiliation: Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science and Technology, Tianjin 300457, China.
authors.forename: Yonghui
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Water Research Unit, Faculty of Science and Natural Resources, University Malaysia Sabah 88400 Kota Kinabalu, Sabah, Malaysia.
authors.forename: Muhammad Aqeel
authors.initials: MA
authors.lastname: Ashraf
keywords: Chitosan; antimicrobial property; paper; quaternary ammonium salt