co2对某些离子液体自组装结构的调控-物理化学专业毕业论文.docx

AB STRACT
Stimulus responsiveness refers to the great change of physical and/or chemical properties of the system caused by small external environment change,which is also known弱smart or environmental —responsive materials have widely been used in drug delivery,sensing,coating,and
date,pH,temperature,light,redox agent,and C02 have been used as external these stimulis,C02 is cheaper,abundant,non—toxic and non-,it can be easily removed by N2 or air ,C02-responsive materials have attracted widespread attention.
Because of its unique properties,ionic liquids have been used anic synthesis,extraction, separation,material preparation,biomass processing and other chemical structure and properties of ionic liquids Call be designed for task-specific applications,which allows us to design and synthesize functionalized ionic bonding groups onto cations and anions of the ionic liquids may produce new this work,we design and synthesize three class of long-chain ionic liquids in which the anions are ,and the self-assembly behavior of these ionic liquids in aqueous solution and its regulation WaS main content is aS follows.
2
posed of N-methyl-N-alkyl monoethanolamine MMEA]+(n
10,12,14,16)and taurine anion(【1'a】。)were designed and self-aSsembly behavior ofthese ionic liquids in aqueous solution was studied by conductance,DLS,SAXS,and Cryo-TEM-We found that in aqueous solutions,self-assembly structure of the ionic liquids can be switched between spherical
micelles and vesicles by alternatively bubbliI培C02 and possible transform mechanism WaS investigated by 13C NMR ,these ionic liquids systems have been essfully applied to the processes for the formation/destabilization of oil/water emulsions and
coagulation/redispersion of emulsion polymerization.
posed o