Giant Wormlike Rubber Micelles

作者：You‐Yeon Won, H. T. Davis, Frank S. Bates · 发表于：Science · 年份：1999 · DOI：10.1126/science.283.5404.960 · 被引用次数：668 · 研究领域：Surfactants and Colloidal Systems、Polymer Surface Interaction Studies、Advanced Polymer Synthesis and Characterization

A low molecular weight poly(ethyleneoxide)-poly(butadiene) (PEO-PB) diblock copolymer containing 50 weight percent PEO forms gigantic wormlike micelles at low concentrations (<5 percent by weight) in water. Subsequent generation of free radicals with a conventional water-based redox reaction leads to chemical cross-linking of the PB cores without disruption of the cylindrical morphology, as evidenced by cryotransmission electron microscopy and small-angle neutron scattering experiments. These wormlike rubber micelles exhibit unusual viscoelastic properties in water.