Effect of ionic liquids on stability of O/W miniemulsion for application of low emission coating products

Yiyang Kong, Binjie Hu, Yanqing Guo, Yifan Wu

Research output: Journal PublicationArticlepeer-review

2 Citations (Scopus)


Room temperature ionic liquids (RTILs) are non-volatile organic salts. They may replace conventional coalescing agents in latex coating thus reducing volatile organic compounds (VOCs) emission as well as improving performance of latex coating products such as better thermal stability, conductivity, and antifouling property. The formation of latex coating containing RTILs can be achieved by encapsulation of RTILs inside particles via miniemulsion polymerization. In this study, the role of RTILs and its concentration on stability of miniemulsion during storage and polymerization were investigated. It has been found that, above a critical concentration (10 wt%), adding more RTILs to oil phase may weaken miniemulsion stability during storage as well as polymerization. Such observations were consistent with the zeta potential measurement for miniemulsions prepared at the similar conditions. The results obtained here would be a useful guideline for the development of new waterborne coating products with desirable functions and particle sizes.

Original languageEnglish
Pages (from-to)196-201
Number of pages6
JournalChinese Journal of Chemical Engineering
Issue number1
Publication statusPublished - 1 Jan 2016


  • Miniemulsion polymerization
  • Room temperature ionic liquids
  • Volatile organic compounds
  • Zeta potential

ASJC Scopus subject areas

  • Environmental Engineering
  • Biochemistry
  • Chemistry (all)
  • Chemical Engineering (all)


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