聚烯烃弹性体的结构表征  

Structural characterization of POE

作　　者：白玮 李秀洁 彭占录 姜涛 Bai Wei;Li Xiujie;Peng Zhanlu;Jiang Tao(Jiangsu Sierbang Petrochemical Co.,Ltd.,Lianyungang 222000,China;College of Chemical Engineering and Materials Science,Tianjin University of Science&Technology,Tianjin 300457,China)

机构地区：[1]江苏斯尔邦石化有限公司,江苏连云港222000 [2]天津科技大学化工与材料学院,天津300457

出　　处：《合成树脂及塑料》2021年第2期51-53,共3页China Synthetic Resin and Plastics

基　　金：中国石油科技创新基金研究项目(2018D-5007-0502)。

摘　　要：使用高温核磁共振碳谱、高温凝胶渗透色谱和熔融指数仪等对4种聚烯烃弹性体(POE)的微观链结构、共聚单体组成及含量、相对分子质量及其分布等进行了分析和表征。结果表明:4种POE的共聚单体均为1-辛烯,共聚单体含量为30.0%~33.2%(w),共聚单体在分子链中分布均匀;4种POE的相对分子质量为7.19×10^(4)~12.45×10^(4),相对分子质量分布为2.02~2.35。Four kinds of polyolefin elastomers(POE)were characterized by 13C nuclear magnetic resonance spectrometer,gel permeation chromatograph and fusion index instrument in terms of their chain microstructures,composition and contents of comonomers,relative molecular mass and distributions.The results show that all the comonomers forming these four POE products are 1-octene,whose mass fraction range from 30.0%to 33.2%and are distributed homogeneously in POE.The relative molecular mass of the POE samples are within 7.19×10^(4)to 12.45×10^(4),and their molecular mass distribution are between 2.02 and 2.35.

关 键 词：聚烯烃弹性体 乙烯-1-辛烯共聚物 链结构 凝胶渗透色谱仪 

分 类 号：TQ334.2[化学工程—橡胶工业]