Prolonged degradation of end-capped polyelectrolyte multilayer films

Takeshi Serizawa, Kyoko Iida, Hisao Matsuno, Kimio Kurita

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Cationic chitosan (CT) and anionic dextran sulfate (Dex) were layer-by-layer (LbL) assembled from aqueous solutions containing 1 M NaCl on a quartz crystal microbalance (QCM) substrate, and the original films ((CT-Dex)3-CT)) were end-capped with LbL assembly from CT solutions containing 1 M NaCl and Dex solutions without NaCl. The enzymatic degradation of films by chitosanase was quantitatively analyzed by QCM in terms of numbers of end-capping steps. The degradation of films end-capped with (Dex-CT)3 was considerably prolonged when compared to those end-capped with other end-capping steps. A mechanism for the prolonged degradation was proposed by quantitative QCM data and zeta potential results.

Original languageEnglish
Pages (from-to)407-413
Number of pages7
JournalPolymer Bulletin
Volume57
Issue number3
DOIs
Publication statusPublished - Jul 1 2006

Fingerprint

Multilayer films
Chitosan
Polyelectrolytes
quartz crystals
microbalances
degradation
Quartz crystal microbalances
Degradation
chitosanase
dextrans
Dextran Sulfate
Dextran
sulfates
Zeta potential
assembly
aqueous solutions
Substrates

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Prolonged degradation of end-capped polyelectrolyte multilayer films. / Serizawa, Takeshi; Iida, Kyoko; Matsuno, Hisao; Kurita, Kimio.

In: Polymer Bulletin, Vol. 57, No. 3, 01.07.2006, p. 407-413.

Research output: Contribution to journalArticle

Serizawa, Takeshi ; Iida, Kyoko ; Matsuno, Hisao ; Kurita, Kimio. / Prolonged degradation of end-capped polyelectrolyte multilayer films. In: Polymer Bulletin. 2006 ; Vol. 57, No. 3. pp. 407-413.
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