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Upload organization:Osaka University Graduate School of Science, Polymer Assemblies  Upload date:2011/07/04

Polymer Assemblies

Professor Takahiro Sato
Labpratory of Macromolecular Assemblies
Department of Macromolecular Science,
Graduate School of Science
Osaka University

address: 1-1, Machikane-yama, Toyonaka City, Osaka, Japan

Polymers often form aggregates in solution and polymer aggregates play important roles in industries of foods, cosmetics, paints, and pharmaceutics, as well as in living cells where proteins and nucleic acids associate and dissociate during biochemical reactions. Polymer aggregates, or polymer assemblies, usually take very complex conformations and their characterization is not easy. Our group aims at understanding the structures and properties of polymer assemblies through the following projects.

1. Syntheses of novel associating polymers with strong attractive interactions, like amphiphilic polyelectrolytes, random copolymers bearing carboxyl and amide (or amino) groups, etc.

2. Establishment of methods for characterizing polymer conformation in aggregates, self-associating structure, and interaction among polymer aggregates, by using light scattering, fluorescence, NMR, size-exclusion chromatography, viscosity, ultracentrifuge, and so on.

3. Interpretation of various properties of associating polymer solutions, like viscosity, liquid crystallinity, circular dichroism, reaction kinetics, and interaction with functional molecules, in terms of self-associating structure and intermolecular or inter-aggregate interaction.