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标题:Synthesis and performance evaluation of betaine type zwitterionic surfactants containing different degrees of ethoxylation
时间:2020-06-30 20:29:34
DOI:10.1016/j.molstruc.2018.07.069
大小:1196 kb
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目录:
  • Synthesis and performance evaluation of betaine type zwitterionic surfactants containing different degrees of ethoxylation
    • 1. Introduction
    • 2. Experimental
      • 2.1. Material
      • 2.2. Structure confirmation
      • 2.3. Thermogravimetric analysis
      • 2.4. Solubility tests
      • 2.5. Surface tension analysis
      • 2.6. Synthesis
        • 2.6.1. Synthesis of intermediate (2a and 2b)
        • 2.6.2. Ethoxylated alkyl amidopropyl-NN-dimethylamine (2a)
        • 2.6.3. Ethoxylated alkyl amidopropyl-NN-dimethylamine (2b)
        • 2.6.4. Synthesis of ethoxylated alkyl amidosulfobetaine (EASB-1a and EASB-1b)
        • 2.6.5. Ethoxylated alkyl amidosulfobetaine (EASB-1a)
        • 2.6.6. Ethoxylated alkyl amidosulfobetaine (EASB-1b)
    • 3. Results and discussion
      • 3.1. Structure confirmation
      • 3.2. Solubility tests
      • 3.3. Thermal degradation behaviors
      • 3.4. Effect of degree of ethoxylation on cmc values
    • 4. Conclusion
    • Acknowledgment
    • Appendix A. Supplementary data
    • References

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