二甲基硅油中杂质的结构及半定量研究  

Structure and semi quantitative study of impurities in dimethyl silicone oil

作　　者：徐元媛 李穆婵 李雨情 吉一帆 柴嘉欣 于宏伟[1,2] Xu Yuanyuan;Li Muchan;Li Yuqing;Ji Yifan;Chai Jiaxin;Yu Hongwei(Shijiazhuang University College of Chemical Technology,Shijiazhuang 050035,China;Anesthetic Technology Innovation Center of Hebei Province,Shijiazhuang 050035,China)

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]河北省麻醉药技术创新中心,河北石家庄050035

出　　处：《炼油与化工》2024年第3期14-20,共7页Refining And Chemical Industry

基　　金：石家庄市麻醉药技术创新中心项目(石科[2019]34号);河北省生物制药国际联合中心项目(冀科外函[2022]3号)。

摘　　要：采用中红外(MIR)光谱技术开展了二甲基硅油中杂质的结构及半定量研究。实验发现:二甲基硅油分子结构红外吸收模式主要包括:CH_(3)官能团不对称伸缩振动模式(ν_(asCH3-二甲基硅油))、CH_(3)官能团不对称弯曲振动模式(δ_(asCH3-二甲基硅油))、CH_(3)官能团对称弯曲振动模式(δ_(sCH3-二甲基硅油));Si-O官能团伸缩振动模式(ν_(Si-O-二甲基硅油))、Si-C官能团伸缩振动模式(ν_(Si-C-二甲基硅油))和CH_(3)官能团面内摇摆振动模式(ρ_(CH3-二甲基硅油))。二甲基硅油中杂质结构红外吸收模式主要包括:C-H官能团伸缩振动模式(νC-H-杂质结构)、CH_(2)官能团不对称伸缩振动模式(ν_(asCH2-杂质结构))、CH_(2)官能团对称伸缩振动模式(ν_(sCH2-杂质结构))、C=O官能团伸缩振动模式(ν_(C=O-杂质结构))、C=C官能团伸缩振动模式(ν_(C=C-杂质结构))和CH_(2)官能团面内摇摆振动模式(ρ_(CH2-杂质结构))。二甲基硅油中杂质结构主要包括:芳基、羰基及烃类等杂质结构,其中芳基及羰基杂质结构含量相对较低,而烃类杂质结构含量则相对较高。MIR光谱初步开展了二甲基硅油中杂质的结构及半定量研究,具有重要的应用研究价值。The structure and semi quantitative studies on impurities in dimethyl silicone oil was studied by mid infrared(MIR)spectroscopy technology.It is found that the infrared absorption modes of dimethyl silicone oil molecular structure mainly include CH_(3) functional group asymmetric stretching vibration mode(ν_(asCH3-dimethyl silicone oil)),CH_(3 )functional group asymmetric bending vibration mode(δ_(asCH3-dimethyl silicone oil)),CH3 functional group symmetric bending vibration mode(δ_(sCH3-dimethyl silicone oil)),Si-O functional group stretching vibration mode(ν_(Si-O-dimethyl silicone oil)),Si-C functional group stretching vibration mode(ν_(Si-C-dimethyl silicone oil))and CH3 functional group rocking vibration(ρ_(CH3-dimethyl silicone oil)).The infrared absorption modes of dimethyl silicone oil impurity structure mainly include C-H functional group stretching vibration mode(ν_(C-H-impurity structure)),CH_(2) functional group asymmetric stretching vibration mode(νasCH2-impurity structure),CH_(2) functional group symmetric stretching vibration mode(ν_(sCH2-impurity structure)),C=O functional group stretching vibration mode(νC=O-impurity structure),C=C functional group stretching vibration mode(ν_(C=C-impurity structure))and CH_(2) functional groups rocking vibration(ρ_(CH2-impurity structure)).The impurity structures of dimethyl silicone oil mainly include aromatic,carbonyl,and hydrocarbon impurity structures.Among them,the content of aromatic and carbonyl impurity structures is relatively low,while the content of hydrocarbon impurity structures is relatively high.MIR spectroscopy has conducted preliminary structural and semi quantitative studies on impurities in dimethyl silicone oil,which has important application research value.

关 键 词：二甲基硅油 中红外光谱 杂质 结构 

分 类 号：TE345[石油与天然气工程—油气田开发工程]