论文部分内容阅读
用 DEPT NMR 测定了氢化丁苯共聚物,采用 Lindeman 经验参数计算其二单元、三单元不同单体序列分布中饱和碳部分各碳原子在~(13)C-NMR 谱中的化学位移值。DEPT 实验结果与经验参数计算值相结合,确定了氢化丁苯~(13)C-NMR 谱的归属。利用 DEPT 谱计算了氢化丁苯中各微观结构含量,结合400MHZ ~1H-NMR 信息,全面地表征了氢化丁苯链结构。
The hydrogenated styrene-butadiene copolymer was measured by DEPT NMR. The chemical shift values of the carbon atoms in the saturated carbon moiety in the ~ (13) C-NMR spectra were calculated using Lindeman empirical parameters. The DEPT experimental results were combined with the calculated values of the empirical parameters to determine the attribution of the hydrogenated butylbenzene ~ (13) C-NMR spectrum. The microstructure of hydrogenated SBR was calculated by DEPT spectra. The structure of hydrogenated SBR was characterized comprehensively by combining the information of 400MHZ ~ 1H-NMR.