波谱学杂志

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聚醚改性有机硅表面活性剂的核磁共振及红外光谱表征

李春发*,朱雪荣   

  1. 亨斯迈化学研发中心(上海)有限公司,上海 200245
  • 收稿日期:2013-08-01 修回日期:2013-10-15 出版日期:2014-06-05 发布日期:2014-06-05
  • 作者简介:李春发(1979-),男,陕西人,硕士,研究方向为波谱分析,电话:021-33572721, E-mail: lichunfa1979@gmail.com. *通讯联系人.

 An NMR and FT-IR Study on Polyether Modified Silicon Surfactant

LI Chun-fa*,ZHU Xue-rong


 
  

  1. R&D Center (Shanghai), Huntsman Chemistry Company Limited, Shanghai 200245, China
  • Received:2013-08-01 Revised:2013-10-15 Online:2014-06-05 Published:2014-06-05
  • About author:*Corresponding author:LI Chun-fa, Tel: 021-33572721, E-mail: lichunfa1979@gmail.com.

摘要:

通过核磁共振技术(1H, 13C NMR, DEPT135, COSY, HSQC, HMBC)和红外光谱技术(FT-IR),对未知的有机硅表面活性剂商品(NPS-A)进行了表征;结果表明:该表面活性剂是单烯丙基聚乙二醇(AllyloxyPolyEthylene Glycol, APEG)在聚硅氧烷侧链改性所得,样品中含有合成时所带的大量DMSO溶剂(合成时所代入的),除溶剂外的主要成分为:(1) M-D20- (D′R)6-M (M:三甲基硅氧基;D:二甲基硅氧基;D′:取代的二甲基硅氧基),其中R = CH2CH2CH2-O- (EO)8-H,平均分子量(M(___)n)为4 046.0,(2) APEG (M(___)n = 410.0)和(3)聚乙二醇(PolyEthylene Glycol, PEG,M(___)n = 370.0),同时还含有少量由烯丙基衍生而来的小分子成分.

关键词: 核磁共振(NMR), 红外(FT-IR), 表征, 有机硅, 表面活性剂, 聚氨酯

Abstract:

Unknown silicon surfactant (NPS-A) was characterized by FT-IR and NMR spectra (including 1H NMR, 13C NMR, DEPT135, COSY, HSQC and HMBC). The results indicated that the sample is a polyether modified silicon surfactant. It is a mixture of three ingredients dissolved in DMSO: (1) M-D20-(D′R)6-M [M:trimethylsiloxane group; D: dimethylsiloxane group; D′: substituted dimethylsiloxane group and R=CH2CH2CH2-O- (EO)8-H] with a mean molar weight of 4 046.0, (2) AllyloxyPolyEthyleneGlycol (APEG) with a mean molar weight of 410.0 and (3) polyethylene glycol (PEG) with a mean molar weight 370.0. Furthermore, trace amount of compounds derived from allyl group were identified.

Key words: NMR, FT-IR, characterization, organosiloxane, surfactant, polyurethane

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