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

Fumiya Sato, Jun ichi Anzai

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)118-122
Number of pages5
JournalMaterials Science and Engineering C
Volume72
DOIs
Publication statusPublished - 2017 Mar 1

Keywords

  • Dendrimer
  • Freestanding film
  • Layer-by-layer film
  • Sorbitol

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Sugar-sensitive dendrimer films as a sacrificial layer for the preparation of freestanding multilayer films'. Together they form a unique fingerprint.

Cite this