Unique Phase-Separation Structures of Block-Copolymer Nanoparticles

Authors

  • H. Yabu,

    1. Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University, N21W10, Sapporo, 001-0021, Japan
    2. Frontier Research System, Institute of Physical and Chemical Research (RIKEN Institute), 1-12, Hirosawa, Wako, Saitama, 351-0198, Japan
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  • T. Higuchi,

    1. Graduate School of Science, Hokkaido University, N10W8, Sapporo, 060-0810, Japan
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  • M. Shimomura

    1. Nanotechnology Research Center, Research Institute for Electronic Science, Hokkaido University, N21W10, Sapporo, 001-0021, Japan
    2. Frontier Research System, Institute of Physical and Chemical Research (RIKEN Institute), 1-12, Hirosawa, Wako, Saitama, 351-0198, Japan
    3. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8, Honmachi, Kawaguchi, Saitama, 332-0012, Japan
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  • This work was partly supported by a Grant-in-Aid for Scientific Research, MEXT, JAPAN. Supporting Information is available online from Wiley InterScience or from the author.

Abstract

original image

Block-copolymer nanoparticles with lamellar phase-separation structures (see Figure) have been prepared by a slow-precipitation process. Regular-sized polymer nanoparticles are formed after evaporation of a good solvent from a polymer solution containing a non-volatile poor solvent and a volatile good solvent.

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