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Graft Copolymerization of Acrylonitrile(AN) onto Chitosan Initiated by NH_2OH·HCl-H_2O_2

Yuan Chun

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Abstract

The graft copolymerization of acrylonitrile(AN) onto chitosan was prepared using NH 2OH·HCl H 2O 2 as initiator. The orthogonal design was employed to study the influences such as the ratio of chitosan and initiator, the ratio of chitosan and acrylonitrile, reaction time and temperature. The results showed that the optimum process conditions were as follow: chitosan/H 2O 2(ω/ω)=8,chitosan/NH 2OH·HCl(ω/ω)=14,AN/chitosan(ω/ω)=3.5,reaction time 4.5 h,temperature 35 ℃. The grafting(G %) and graft efficiency(E %) were obtained 185.96 %,77.87 % respectively under the optimum process conditions.

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What this paper is about

The graft copolymerization of acrylonitrile(AN) onto chitosan was prepared using NH 2OH·HCl H 2O 2 as initiator. The orthogonal design was employed to study the influences such as the ratio of chitosan and initiator, the ratio of chitosan and acrylonitrile, reaction time and temperature. The results showed that the optimum process conditions were as follow: chitosan/H 2O 2(ω/ω)=8,chitosan/NH 2OH·HCl(ω/ω)=14,AN/chitosan(ω/ω)=3.5,reaction time 4.5 h,temperature 35 ℃. The grafting(G %) and graft efficiency(E %) were obtained 185.96 %,77.87 % respectively under the optimum process conditions.

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Available abstract

The graft copolymerization of acrylonitrile(AN) onto chitosan was prepared using NH 2OH·HCl H 2O 2 as initiator. The orthogonal design was employed to study the influences such as the ratio of chitosan and initiator, the ratio of chitosan and acrylonitrile, reaction time and temperature. The results showed that the optimum process conditions were as follow: chitosan/H 2O 2(ω/ω)=8,chitosan/NH 2OH·HCl(ω/ω)=14,AN/chitosan(ω/ω)=3.5,reaction time 4.5 h,temperature 35 ℃. The grafting(G %) and graft efficiency(E %) were obtained 185.96 %,77.87 % respectively under the optimum process conditions.

Key concepts: Chitosan, Acrylonitrile, Copolymer, Grafting, Polymer chemistry, Chemistry, Nuclear chemistry, Organic chemistry

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