Morphology control in water of polyion complex nanoarchitectures of double-hydrophilic charged block copolymers through composition tuning and thermal treatment

Arie Wibowo, Kensuke Osada, Hiroyuki Matsuda, Yasutaka Anraku, Haruko Hirose, Akihiro Kishimura, Kazunori Kataoka

研究成果: Contribution to journalArticle査読

28 被引用数 (Scopus)

抄録

Polyion complexes (PICs) are attractive as eco-friendly materials, because they offer simple and fast preparation methods to exert various functionalities in aqueous medium. However, control of nanoarchitectures in PIC materials has not been fully realized, except for the case of micelles and unilamellar vesicles formed from block ionomers. Here, the procedure to control PIC nanoarchitectures with various morphologies was established for the first time by careful tuning in the composition of PICs made from PEG-based block-ionomers with a varying amount of homoionomers as additive to modulate the PEG weight fraction (fPEG) in the obtained PICs. Accordingly, the variation in fPEG from 12.1% to 6.5% induced vigorous transition in the microphase separated structures of PICs basically from micelle to lamella via cylindrical network. Notably, uniformed lamella with alternative layers of PEG and PIC domains was found at elevated temperature (70 °C), which, by lowering temperature, reversibly transformed to cylindrical PIC network apparently with connected aqueous channel in mesoscopic scale.

本文言語英語
ページ(範囲)3086-3092
ページ数7
ジャーナルMacromolecules
47
9
DOI
出版ステータス出版済み - 5 13 2014

All Science Journal Classification (ASJC) codes

  • 有機化学
  • ポリマーおよびプラスチック
  • 無機化学
  • 材料化学

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