利用固体NMR研究一种萜类有机分子在聚乙烯中的吸附行为  

Solid-state NMR study on the sorption behavior of terpenoid in polyethylene

作　　者：宋建会[1] 刘宣伯[1] 姚雪容[1] 李娟[1] 张韬毅[1] 张龙贵[1] Song Jianhui;Liu Xuanbo;Yao Xuerong;Li Juan;Zhang Taoyi;Zhang Longgui(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100013,China)

机构地区：[1]中国石化北京化工研究院,北京100013

出　　处：《石油化工》2021年第10期1081-1085,共5页Petrochemical Technology

摘　　要：利用固体NMR技术考察了聚乙烯(PE)吸附一种萜类气味有机分子C_(10)H_(18)O前后的相结构和分子运动性。表征结果显示,PE的相组成包含晶区、界面区和无定形区,吸附C_(10)H_(18)O至饱和后的试样(PE/OM)的晶区含量基本不变,界面区中有很小一部分转变为无定形区。PE/OM的晶区、界面区和无定形区的分子链运动能力均较PE有所增强。The phase compositions and molecular mobility of polyethylene(PE)prior to and after sorption of terpenoid C_(10)H_(18)O to equilibrium was studied by solid-state NMR spectroscopy.The results indicate that the phase composition of PE includes crystalline,interface and amorphous regions.The content of crystalline component of PE after adsorption of C_(10)H_(18)O to saturation(PE/OM)is basically unchanged;meanwhile,a small fraction of interface region transforms into amorphous region.The chain mobility of PE/OM in crystalline,interface and amorphous regions are all increased compared with that of PE.

关 键 词：聚乙烯 萜类有机分子 吸附 固体核磁 相结构 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]