核磁共振法测定乙烯-乙酸乙烯酯中乙酸乙烯酯含量  

Determination of Vinyl Acetate Content in Ethylene-Vinyl Acetate by Nuclear Magnetic Resonance

作　　者：刘晓媛 时诒毅 黄征 王超 刘爱芹 LIU Xiaoyuan;SHI Yiyi;HUANG Zheng;WANG Chao;LIU Aiqin(Stone Technology Co.,Ltd,Qingdao 266045,China;Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]思通检测技术有限公司,山东青岛266045 [2]青岛科技大学,山东青岛266045

出　　处：《橡胶科技》2025年第2期106-109,共4页Rubber Science and Technology

摘　　要：采用核磁共振法测定乙烯-乙酸乙烯酯(EVA)中的乙烯和乙酸乙烯酯的相对含量。通过^(1)H-NMR谱、^(13)C-NMR谱和二维核磁共振谱对EVA的谱峰进行归属,选取特征峰的峰面积进行计算,分别建立^(1)H-NMR和^(13)C-NMR的定量方法,该方法相对于传统方法更加快速、简单。The relative content of ethylene and vinyl acetate in ethylene-vinyl acetate(EVA)was determined using nuclear magnetic resonance(NMR)spectroscopy.The peaks in the EVA spectra were assigned using ^(1)H-NMR,^(13)C-NMR,and two-dimensional NMR spectra.Quantitative methods for ^(1)H-NMR and ^(13)C-NMR were established by selecting characteristic peaks and calculating their peak areas.This method was faster and simpler compared to traditional methods.

关 键 词：乙烯-乙酸乙烯酯 乙烯 乙酸乙烯酯 ~1H-NMR谱 ~(13)C-NMR谱 二维核磁共振谱 

分 类 号：TQ330.72[化学工程—橡胶工业] TQ334.1