Sugar-sensitive dendrimer films as a sacrificial layer for the preparation of freestanding multilayer films

Fumiya Sato, Jun ichi Anzai

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Multilayer thin films composed of poly(vinyl alcohol) (PVA) and phenylboronic acid-bearing poly(amidoamine) dendrimer (PBA-PAMAM) were used as a sacrificial layer for constructing freestanding polyelectrolyte films consisting of poly(styrenesulfonate) (PSS) and poly(allylamine hydrochloride) (PAH). Freestanding (PSS/PAH)15 films were successfully released from substrate by exposing composite (PVA/PBA-PAMAM)n/(PSS/PAH)15 films (n = 5 and 10) to sorbitol solutions under mild conditions at pH 7.0–9.0. The film release was accelerated in solutions of higher sorbitol concentrations at pH 9.0 as well as in solutions with lower concentration of NaCl. The results were rationalized based on the scission of boronate ester bonds between PBA-PAMAM and PVA in the (PVA/PBA-PAMAM)n layer due to a competitive binding of sorbitol to PBA-PAMAM.

本文言語English
ページ(範囲)118-122
ページ数5
ジャーナルMaterials Science and Engineering C
72
DOI
出版ステータスPublished - 2017 3月 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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