乳聚型充油苯乙烯-异戊二烯-丁二烯橡胶中结合苯乙烯含量的1H-NMR分析  

Quantitative analysis on the bound styrene content of emulsion polymerized oil-filled styrene-isoprene-butadiene rubber by 1H-NMR spectrometry

作　　者：王博[1] 宫立波[1] 王辉[2] 马春香[1] 杨有铭[1] 

机构地区：[1]中国石油吉林石化公司研究院,吉林吉林132021 [2]中国石油吉林石化公司仓储中心,吉林吉林132022

出　　处：《弹性体》2015年第2期88-90,共3页China Elastomerics

摘　　要：乳聚型充油苯乙烯-异戊二烯-丁二烯橡胶(SIBR)作为一种优良的集成橡胶,其结合苯乙烯含量直接影响橡胶制品的耐温耐磨性能,笔者通过对SIBR橡胶产品进行回流预处理去除杂质,以氘代氯仿为溶剂,在室温下利用核磁共振氢谱法(1 H-NMR)对SIBR中结合苯乙烯含量进行了研究,通过确定图谱中各峰归属并测定积分值,结合特定的计算公式推导出橡胶中结合苯乙烯、丁二烯和异戊二烯的单体质量分数,以期为科研和生产质量控制提供参考数据。Oil-filled emulsion polymerized styrene-isoprene-butadiene rubber（SIBR）is a kind of excellent integrated rubber,the bound styrene content directly affects the temperature resistant and wear-resistant performance of the rubber products.In this paper,based on reflux pretreatment for impurity removal,the bound styrene content of SIBR was quantitatively analyzed by ^1H nuclear magnetic resonance spectrometry with CDCl3 as solvent.The mass fraction of bound styrene（PS）,isoprene（PI）and butadiene（PB）was determined separately by using a calculation method through the integral areas of NMR-peaks.The result of this work could be used as a quality control method for process test and industrial production.

关 键 词：SIBR 结合苯乙烯 ^1 H-NMR 

分 类 号：TQ331.492[化学工程—橡胶工业]