| 两种聚醚改性有机硅表面活性剂的NMR数据分析 |
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| 引用本文： | 张彬锋,朱雪荣.两种聚醚改性有机硅表面活性剂的NMR数据分析[J].波谱学杂志,2016,33(3):432-441. |
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| 作者姓名： | 张彬锋 朱雪荣 |
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| 作者单位： | 亨斯迈化学研发中心 上海 有限公司,上海,200245;亨斯迈化学研发中心 上海 有限公司,上海,200245 |
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| 摘 要： | 运用液体核磁共振(NMR)技术(包括~1H NMR、DEPT135、~(13)C qNMR、~1H-~1H COSY、~1H-~(13)C HSQC、~1H-~(13)C HMBC、~(29)Si qNMR和~1H-~(29)Si HMBC)对两种有机硅表面活性剂进行了化学结构表征,对所得波谱数据进行了较为全面的指认.结果表明一维~1H NMR、~(13)C NMR和~(29)Si NMR,与二维NMR方法结合使用可以准确区分这两种有机硅表面活性剂的结构:样品A和样品B均为聚乙二醇改性的聚二甲基硅氧烷有机硅表面活性剂;A具有线型ABA结构,平均分子量约为1 967;B具有梳型BAB结构,平均分子量约为7 191.
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| 关 键 词： | 液体核磁共振(liquid NMR) 结构鉴定 1H-29Si HMBC 有机硅表面活性剂 硅氧烷和聚氧化乙烯共聚物 |
NMR Analyses of Two Polyether Modified Organic Silicone Surfactants |
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| ZHANG Bin-feng?,ZHU Xue-rong.NMR Analyses of Two Polyether Modified Organic Silicone Surfactants[J].Chinese Journal of Magnetic Resonance,2016,33(3):432-441. |
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| Authors: | ZHANG Bin-feng? ZHU Xue-rong |
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| Abstract: | Two unknown polyether modified organic silicone surfactants were studied by NMR techniques (i.e.,1H NMR, DEPT135,13C qNMR,1H-1H COSY,1H-13C HSQC, 1H-13C HMBC,29Si qNMR and1H-29Si HMBC). The NMR signals were assigned. The results indicated that the two silicone surfactants could be distinguished from each other by 1H-29Si HMBC. The main component of sampleA was polyethylene oxide modified polydimethylsiloxane surfactant with a linear ABA structure, and sampleB had a comb BAB structure. The average molecular weight of the two compounds was 1 967 and 7 191, respectively. |
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| Keywords: | liquid NMR structural elucidation 1H-29Si HMBC silicone surfactants siloxane polyalkyleneoxide copolymer |
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