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- Sumeet Jain
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA.
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- Frank S. Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA.
書誌事項
- 公開日
- 2003-04-18
- DOI
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- 10.1126/science.1082193
- 公開者
- American Association for the Advancement of Science (AAAS)
この論文をさがす
説明
<jats:p> Amphiphilic compounds such as lipids and surfactants are fundamental building blocks of soft matter. We describe experiments with poly( <jats:italic>1,2</jats:italic> -butadiene- <jats:italic>b</jats:italic> -ethylene oxide) (PB-PEO) diblock copolymers, which form Y-junctions and three-dimensional networks in water at weight fractions of PEOintermediate to those associated with vesicle and wormlike micelle morphologies. Fragmentation of the network produces a nonergodic array of complex reticulated particles that have been imaged by cryogenic transmission electron microscopy. Data obtained with two sets of PB-PEOcompounds indicate that this type of self-assembly appears above a critical molecular weight. These block copolymers represent versatile amphiphiles, mimicking certain low molecular weight three-component (surfactant/water/oil) microemulsions, without addition of a separate hydrophobe. </jats:p>
収録刊行物
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- Science
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Science 300 (5618), 460-464, 2003-04-18
American Association for the Advancement of Science (AAAS)
