Switchable Pickering Emulsions Stabilized by Silica Nanoparticles Hydrophobized In Situ with a Switchable Surfactant
作者:Jianzhong Jiang、Yue Zhu、Zhenggang Cui、Bernard P. Binks
DOI:10.1002/anie.201305947
日期:2013.11.18
Back and forth: The CO2/N2 trigger of a switchable surfactant (neutral amidine/cationic amidinium) was transferred to mineral nanoparticles through in situ hydrophobization in water. Switchable oil‐in‐water Pickering emulsions that entail a CO2/N2 trigger were obtained by using negatively charged silica nanoparticles and a trace amount of the switchable surfactant as the stabilizer.
来回:通过在水中原位疏水化将可切换表面活性剂(中性am /阳离子am)的CO 2 / N 2引发剂转移至矿物纳米颗粒。通过使用带负电的二氧化硅纳米颗粒和痕量的可转换表面活性剂作为稳定剂,可获得需要CO 2 / N 2触发的可转换水包油Pickering乳液。