METHOD OF PRODUCING BIODEGRADABLE POLYESTERS
	ILYICHEVA N S; KRASNYKH E L; PORTNOVA S V; SOKOLOV A B
	2024-03-20
专利权人	UNIV SAMARA TECH (USMT-C)
申请日期	2024-03-20
专利号	RU2830749-C1
成果简介	NOVELTY - Invention relates to a method of producing biodegradable polyesters. Disclosed is a method of producing polyester based on succinic, malic acids and 1,4-butanediol from two steps, consisting in the fact that the first synthesis step – obtaining a prepolymer – is carried out by mixing succinic acid with 1,4-butanediol at temperature of up to 170 °C in a stream of nitrogen until complete mixing of monomers for 4 hours without using a catalyst, in the second synthesis step, additionally adding malic acid with 1,4-butanediol or an ester of malic acid with 1,4-butanediol and a catalyst into the prepolymer obtained at the first step at a temperature of up to 190 °C and contact time of 4 hours, and catalyst used is methanesulphonic acid in amount of 1 wt.%. USE - Chemistry. ADVANTAGE - High quality of the obtained polyester. 1 cl, 3 ex
IPC 分类号	C08G-063/60 ; C08G-063/78 ; C08G-063/82
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/17618
专题	中国科学院新疆生态与地理研究所
作者单位	UNIV SAMARA TECH (USMT-C)
推荐引用方式 GB/T 7714	ILYICHEVA N S,KRASNYKH E L,PORTNOVA S V,et al. METHOD OF PRODUCING BIODEGRADABLE POLYESTERS. RU2830749-C1[P]. 2024.

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