Electric field manipulation of charged copolymer worm micelles |
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| Authors: | Vijayan Kandaswamy Geng Yan Discher Dennis |
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| Institution: | Graduate Group in Physics, Chemical & Biomolecular Engineering, and The Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. |
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| Abstract: | Manipulation of diblock copolymer worm micelles by external electric fields is visualized by fluorescence microscopy in dilute, aqueous solution. Hydrodynamic coupling of the poly(acrylic acid)-(1,4)-polybutadiene (PAA-PBD) worm motion to the electric field and the effective stiffening of the worms in an oscillating electric field are demonstrated. A brief discussion on using this technique to estimate the rheological properties of wormlike micelles is presented. |
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