用^(13)C-NMR波谱法研究SBR的序列结构——Ⅱ.烷碳区谱峰的归属

SEQUENCE STRUCTURE OF SBR BY ^(13)C -NMR METHOD Ⅱ .PEAK ASSIGNMENT FOR ALIPHATIC CARBON SPECTRA

研究了乳聚SBR和锂系溶聚SBR烷碳区^(13)C—NMR谱图。运用对应分析法结合文献报道的经验参数,对实验观察到的33个吸收峰(包括未知峰和有争议峰)做了归属。并按照Bernoulli统计假定计算了有代表性的三个样品烷碳区主要谱峰强度的理论值,该值与实测值基本吻合。

The I3C -NMR spectra of aliphatic carbon region of emulsion processed SBR and lithium catalyst solution processed SBR were studied . The assignment for 33 odd peaks observed experimentally was made by using corresponding analysis method , combined with the empirical parameters reported in the literatures .The peak intensities were calculated based on Bernoullian statistic assumption.