Formation of gold nanoparticles in triblock terpolymer-modified inverse microemulsions
作者： Stefanie Lutter , Joachim Koetz , Brigitte Tiersch , Adriana Boschetti-de-Fierro , Volker Abetz
DOI: 10.1016/J.COLSURFA.2008.07.014
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摘要: Abstract The influence of polystyrene (PS)- block– poly(1,4-butadiene) (PB)- poly(ethylene oxide) (PEO) and poly(1,4-butadiene)- polystyrene- triblock terpolymers on the phase behaviour w/o microemulsion pseudo-ternary system made water/sodium dodecylsulfate (SDS)/xylene–pentanol (1:1) was investigated by varying sequence blocks. Independent terpolymer used an enlargement L2 can be observed with increasing polymer concentration. Simultaneously, a decrease diameter mixed inverse terpolymer-surfactant micelles dynamic light scattering. After cross-linking butadiene units, covalently closed nanocapsules average size between 20 30 nm observed. When terpolymer-modified is as template for nanoparticle formation, gold nanoparticles diameters about 10 nm are formed. solvent evaporation, terpolymer-modified, hydrophobic redispersed in toluene–pentanol mixture, eliminated from non-soluble surfactant residue.
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