第49卷第1期 2020年1月
5.1劳动节法定假日几天Vol. 49 No. 1
Jan. 2020
中©皮革
CHINA LEATHER
胶原中氢键变化的红外光谱、拉曼光谱分析
张奇\唐春雪、丁克毅、何达海2a t
(1.西南民族大学化学与环保工程学院,四川成都610041;
2.西南民族大学药学院,四川成都610041)
端午节安康的句子
摘 要:通过红外光谱和拉曼光谱分析了皮股原经过铝、铬、四羟甲基氯化磷鞣制前后的氢键变化,以及这
3种鞣法得到的皮股原湿热收缩前后的氢键变化。红外光谱和拉曼光谱的分析结果均显示,鞣制使得胶原分 子中的氢键数量增加;鞣制过的皮肢原在湿热收缩过程中伴随着三股螺旋中酰胺羧基氢键的断裂;拉曼光谱 还可以观察到脯氨酸、羟脯氨酸氢键的断裂。这一结果支持了氢键在维持股原(包括鞣制改性的肢原)三股螺 旋结构稳定的重要性,同时也为进一步研究鞣制改性皮股原的湿热收缩机理提供了试验依据。
关键词:红外光谱;拉曼光谱;鞣制股原;湿热收缩;氢键
中图分类号 TS57 文献标识码 A D01:10.13536/j k i.issn l001-6813. 2020-001-003 Analysis for hydrogen bond changing of collagen by
F T-IR and Raman spectrum
ZHANG Q i\T A N G Chunxue1,DING KeyV,HE Dahai
(1. College of Chemistry & Environmental Engineering, Southwest Minzu University, Chengdu 610041, C hina;2. College of Pharm acy, Southwest Minzu University, Chengdu 610041, China) Abstract: Hydrogen bond changing of hide powder before and after tanned by chrome salt,aluminum salt and tetra- hydromethyl phosphorus chloride ( THPC) , tanned collagen before and aft
er hydrothermal shrinkage were analyzed by FTIR and Raman spectroscopy. Both the results of FTIR and Raman spectroscopy indicate that the quantity of hydro­gen bonds in collagen molecular increases after tanning process. There are hydrogen bonds breaking of amide carbonyl groups from triple helix of collagen during hydrothermal shrinkage. In addition, the breaking of hydrogen bonds of pro­line and hydroxyl-proline are also observed in Raman spectroscopy. These experimental results support the important role of hydrogen bonds in maintaining the stability of triple helix structure of collagen including tanned collagen, and provide experimental basis for further study of the hydrothermal shrinkage mechanism of tanned collagen.
Key words:F T-IR;Raman spectrum;tanned collagen;hydrothermal shrinkage;hydrogen bond
点,在有机化合物官能团结构辨认中起着重要作用。
前 言 红外光谱的吸收谱带和吸收强度受到氢键的显著影红外光谱(F T-1R)以其高灵敏度、操作简便等特响,特别是分子内氢键。氢键的形成会使得对应官能
哪一款低价吸尘器好用
收稿日期:20丨9-04-2丨;修订日期:20丨9-12-14
放假安排2022年端午节
基金项目:国家自然科学基金(21776231)
蕤是什么意思
第一作者简介:张奇( 1995-),女,硕士研究生,1448688419@ qq,研究方向为鞣剂、鞣法与鞣革理论
*通讯联系人:何达海(1980-),男,博士,dahaihe2007@ yeah, net,研究方向为天然药物化学
张杰谢娜图片•16•