波谱学杂志 ›› 2018, Vol. 35 ›› Issue (3): 363-373.doi: 10.11938/cjmr20172612

• 研究简报 • 上一篇    下一篇

季戊四醇硬脂酸酯同系物的结构解析

李春发, 刘广, 王芹, 刘征   

  1. 沙伯基础(中国)研发有限公司, 上海 201319
  • 收稿日期:2017-12-18 出版日期:2018-09-05 发布日期:2018-08-28
  • 通讯作者: 李春发,Tel:021-31074215,E-mail:chunfa_li@sina.com E-mail:chunfa_li@sina.com

Analyzing Pentaerythritol Stearate Homologs with NMR Spectroscopy

LI Chun-fa, LIU Guang, WANG Qin, LIU Zheng   

  1. SABIC R & D Center(China) Co., Ltd., Shanghai 201319, China
  • Received:2017-12-18 Online:2018-09-05 Published:2018-08-28

摘要: 通过多种核磁共振(NMR)技术(包括1H NMR、定量13C NMR、DEPT135、1H-1H COSY、1H-1H NOESY、1H-13C HSQC和1H-13C HMBC)技术,对季戊四醇硬脂酸酯润滑剂的组成进行了表征.结果表明:该润滑剂主要成分是单季戊四醇四硬脂酸酯,同时还含有少量的单季戊四醇三硬脂酸酯、单季戊四醇双硬脂酸酯、双季戊四醇硬脂酸酯和三季戊四醇硬脂酸酯,以及微量的多季戊四醇硬脂酸酯.

关键词: 核磁共振(NMR), 季戊四醇, 硬脂酸酯, 多季戊四醇, 润滑剂

Abstract: A pentaerythritol stearate sample with unknown composition was analyzed by nuclear magnetic resonance (NMR) spectroscopy (i.e., 1H NMR, quantitative 13C NMR, DEPT135, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC). The results indicated that the sample contained mainly monopentaerythritol tetrastearate, but also had small amounts of monopentaerythritol tristearate, monopentaerythritol distearate, dipentaerythritol stearate and tripentaerythritol stearate, as well as a trace amount of multipentaerythritol stearate.

Key words: nuclear magnetic resonance (NMR), pentaerythritol, stearate, multipentaerythritol, lubricant

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