METHOD OF PRODUCING CARBOXYMETHYL CHITOSAN
	VERETENNIKOVA E A; PESTOV A V
	2023-11-15
专利权人	POSTOVSKY ORGANIC SYNTHESIS INST (POST-Soviet Institute)
申请日期	2023-11-15
专利号	RU2830877-C1
成果简介	NOVELTY - Invention relates to production of chitosan derivatives. Method of producing carboxymethyl chitosan involves treating an aqueous solution of chitosan with sodium chloroacetate and, if necessary, sodium hydroxide. Treatment is carried out at a chitosan concentration of 18–25 wt.% and a molar ratio of sodium chloroacetate: chitosan: sodium hydroxide of 1–2: 1: 0–1 at 60–70 °C for 22–26 hours. Then washed with water, sodium hydroxide solution and dried at 60–70 °C to constant weight. USE - Chemical or physical processes. ADVANTAGE - Invention enables to obtain carboxymethyl chitosan with degree of modification 0.6–1.7. 1 cl, 5 ex
IPC 分类号	C08B-037/08
国家	俄罗斯
专业领域	化学化工
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/19269
专题	中国科学院新疆生态与地理研究所
作者单位	POSTOVSKY ORGANIC SYNTHESIS INST (POST-Soviet Institute)
推荐引用方式 GB/T 7714	VERETENNIKOVA E A,PESTOV A V. METHOD OF PRODUCING CARBOXYMETHYL CHITOSAN. RU2830877-C1[P]. 2023.

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