Design of Comprehensive Teaching Experiment:Synthesis of Oil-in-oil Emulsion Stabilizer and Its Stability
Traditional oil-water emulsions are not suitable for the study of water-sensitive systems.The anhydrous nature of oil-in-oil emulsions provides opportunity for water-sensitive substances and reactions,however there are limited stabilizers.In this experiment,the polymers with adjustable amphipathicity were synthesized by the efficient and stable thiolactone chemistry and click reaction,and then used to stabilize the oil-in-oil emulsions.Poly(amide-thioether)was synthesized via a two-step acrylamide thiolactone-amine reaction in one pot.The effects of alkylamines with different chain lengths on the chemical structure and surface hydrophobicity of poly(amide-thioether)were investigated,and the relationship between the hydrophobicity of the stabilizers and the type of emulsion was also explored.This experiment can expand students'knowledge about water-free emulsion and new polymerization reactions,deepen students'understanding of relevant principles in the field of interface chemistry,and cultivate students'innovative consciousness and comprehensive experimental ability.
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