pH-stability of Layer-by-layer thin films composed of carboxyl-terminated poly (amidoamine) dendrimer and poly (acrylic acid)

Shigeru Tomita, Katsuhiko Sato, Jun Ichi Anzai

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Layer-by-layer (LbL) thin films were prepared using carboxyl-terminated poly (amidoamine) dendrimers (generation, 3.5) (PAMAM-COOH) and poly (acrylic acid) (PAA). The stability of the LbL films in aqueous media was evaluated as a function of pH of the media. The PAMAM-COOH-PAA films were stable at pH 2.0-4.5, while the films were decomposed in the solutions of pH 1.5 and pH 5.0-7.0. The pH-stability of the PAMAM-COOH-PAA films was discussed on the basis of the dissociation equilibrium of carboxylic acid residues in PAA and was compared with pH-stability of poly (methacrylic acid) (PMA)-based LbL films. The stability of the PAMAM-COOH-PAA films was different from that of PAMAM-COOH-PMA film. The difference was rationalized based on the acidity of PAA being stronger than that of PMA.

本文言語English
ページ(範囲)75-78
ページ数4
ジャーナルKOBUNSHI RONBUNSHU
66
2
DOI
出版ステータスPublished - 2009 2

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

フィンガープリント 「pH-stability of Layer-by-layer thin films composed of carboxyl-terminated poly (amidoamine) dendrimer and poly (acrylic acid)」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル