Thermo-responsive hydrogels with nanodomains: Rapid shrinking of a nanogel-crosslinking hydrogel of poly(N-isopropyl acrylamide)

Nobuyuki Morimoto, Takafumi Ohki, Kimio Kurita, Kazunari Akiyoshi

研究成果: Article査読

55 被引用数 (Scopus)

抄録

Rapidly shrinking poly(N-isopropyl acrylamide) (PNIPAM) hydrogels are prepared by crosslinking with self-assembled nanogels that consist of cholesteryl- and methacryloyl-substituted pullulan (CHPMA). The CHPMA nanogel (Rh = 26.4 nm) was used as a crosslinker for a hydrophilic nanodomain. Transmission electron microscopy images of the nanogel-crosslinked PNI-PAM hydrogel reveal a well-defined nanoporous structure. The nanogel-crosslinked PNIPAM hydrogel shows rapid shrinking based on its structure. The shrinking half-time was ≈2 min, which is about 3400 times faster than that of a PNIPAM hydrogel crosslinked by methylene(bisacrylamide).

本文言語English
ページ(範囲)672-676
ページ数5
ジャーナルMacromolecular Rapid Communications
29
8
DOI
出版ステータスPublished - 2008 4 18
外部発表はい

ASJC Scopus subject areas

  • 有機化学
  • ポリマーおよびプラスチック
  • 材料化学

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