高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

反应型非离子表面活性剂的制备及其组成和结构

李莉莉1,2, 蔡传伦1, 辛志荣1, 石强1, 殷敬华1   

    1. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022;
    2. 中国科学院研究生院, 北京100049
  • 收稿日期:2006-06-25 修回日期:1900-01-01 出版日期:2007-04-10 发布日期:2007-04-10
  • 通讯作者: 殷敬华

Preparation, Composition and Structures of Reactive Nonionic Surfactants

LI Li-Li1,2, CAI Chuan-Lun1, XIN Zhi-Rong1, SHI Qiang1, YIN Jin-Hua1*   

    1. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
    2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2006-06-25 Revised:1900-01-01 Online:2007-04-10 Published:2007-04-10
  • Contact: YIN Jin-Hua

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被引次数

28

摘要： 以丙烯酸(AA)与硬脂酸单甘油酯(GMS)、油酸单甘油酯(A300)或油酸单山梨糖醇酐酯(Span 80)为起始物, 对甲苯磺酸为催化剂, 对苯二酚为阻聚剂, 制备了三类含有1-烯键的反应型表面活性剂. 通过反应体系中AA 的加料量及其残留量, 计算得到丙烯酸的转化率为91%以上, 制备的反应型非离子表面活性剂的收率达到80%以上. 用红外光谱(FTIR)、核磁共振氢谱(1H NMR)和质谱对反应产物的组成和结构进行了表征, 确认获得了三类目标产物. 将这三类表面活性剂作为流滴剂与聚乙烯发生接枝反应后, 提高了聚乙烯的结晶温度, 降低了水在聚烯烃膜表面的接触角, 解决了聚乙烯农用棚膜的流滴期短的问题.

关键词: 非离子表面活性剂, 硬脂酸单甘油酯, 油酸单甘油酯, 油酸单山梨糖醇酐酯, 丙烯酸

Abstract: Three reactive nonionic surfactants with 1-olefinic bond were synthesized. Glycerol monostearate(GMS), glycerol monooleate(A300), and sorbitan monooleate(Span 80) were adopted as the starting materials to react with acrylic acid(AA) separately, p-toluene sulfonic acid as the catalyst and hydroquinone as the inhibitor. The conversion of the products was determined by means of AA adding level and the amount of the residual AA in the system. It was shown that the conversion of AA got to about 91%, and the yields of three different products, AGMS, AA 300 and ASpan 80 are over 80% respectively. Spectra of FTIR, 1H NMR and FTICR-MS were used to further confirm the formation of the three target products and their chemical structures. Then they were grafted with LLDPE, the Tc of the grafted LLDPE is higher than the plain, and the contact angles of the water on the grafted LLDPE film decrease. The terms of antifogging were prolonged when the grafted LLDPE was used as the agriculture films.

Key words: Nonionic surfactant, Glycerol monostearate, Glycerol monooleate, Sorbitan monooleate, Acrylic acid

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