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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
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- DOI:
- 作者:
- 徐元媛1 ,李穆婵1 ,李雨情1 ,吉一帆1 ,柴嘉欣1 ,于宏伟1,
Xu Yuanyuan 1 ,Li Muchan 1 ,Li Yuqing 1 ,Ji Yifan 1 ,Chai Jiaxin 1 ,Yu Hongwei 1,2
- 作者单位:
- 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
1. Shijiazhuang University College of Chemical Technology,Shijiazhuang 050035,China;2. Anesthetic Technology Innovation Center of Hebei Province,Shijiazhuang 050035,China
- 关键词:
- 二甲基硅油;中红外光谱;杂质;结构
Dimethyl silicone oil;Mid infrared spectroscopy;Structure;Impurity
- 摘要:
- 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 :CH3 官 能 团 不 对 称 伸 缩 振 动 模 式(νasCH3-二甲基硅油)、CH3官能团不对称弯曲振动模式(δasCH3-二甲基硅油)、CH3官能团对称弯曲振动模式(δsCH3-二甲基硅油);Si - O 官 能 团 伸 缩 振 动 模 式(νSi-O-二甲基硅油)、Si - C 官 能 团 伸 缩 振 动 模 式(νSi-C-二甲基硅油)和 CH3官能团面内摇摆振动模式(ρCH3-二甲基硅油)。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)、CH2官能团不对称伸缩振动模式(νasCH2-杂质结构)、CH2 官 能 团 对 称 伸 缩 振 动 模 式(νsCH2-杂质结构)、C=O 官 能 团 伸 缩 振 动 模 式(νC=O-杂质结构)、C=C 官 能 团 伸 缩 振 动 模 式(νC=C-杂质结构)和 CH2 官 能 团 面 内 摇 摆 振 动 模 式(ρCH2-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。Abstract: 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 includeCH3 functional group asymmetric stretching vibration mode (νasCH3-dimethyl silicone oil), CH3 functional group asymmetric bending vibrationmode (δasCH3-dimethyl silicone oil), CH3 functional group symmetric bending vibration mode (δsCH3-dimethyl silicone oil), Si-O functional groupstretching vibration mode (νSi-O-dimethyl silicone oil), Si-C functional group stretching vibration mode (νSi-C-dimethyl silicone oil) and CH3 functionalgroup rocking vibration (ρCH3-dimethyl silicone oil). The infrared absorption modes of dimethyl silicone oil impurity structure mainly includeC-H functional group stretching vibration mode (νC-H-impurity structure), CH2 functional group asymmetric stretching vibration mode(νasCH2-impurity structure), CH2 functional group symmetric stretching vibration mode (νsCH2-impurity structure), C=O functional group stretchingvibration mode (νC=O-impurity structure), C=C functional group stretching vibration mode (νC=C-impurity structure) and CH2 functional groups rockingvibration (ρCH2-impurity structure). The impurity structures of dimethyl silicone oil mainly include aromatic, carbonyl, and hydrocarbonimpurity structures. Among them, the content of aromatic and carbonyl impurity structures is relatively low, while the content ofhydrocarbon impurity structures is relatively high. MIR spectroscopy has conducted preliminary structural and semi quantitativestudies on impurities in dimethyl silicone oil, which has important application research value.