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Flexible Polymer/Clay Nanocomposite Films as Oxygen Supply Materials
Author(s) -
Stefanescu Eduard A.,
Stefanescu Cristina
Publication year - 2012
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201100115
Subject(s) - materials science , nanocomposite , small angle x ray scattering , oxygen , polymer , montmorillonite , composite material , chemical engineering , molecule , polymer clay , scattering , organic chemistry , optics , chemistry , physics , engineering
PIB/MMT nanocomposite films containing UHP are fabricated and characterized for potential applications in wounded‐skin oxygen delivery and/or tooth cleaning. The UHP acts as a source of oxygen, whereas MMT creates a pathway for water molecules penetrating the film in order to generate a controlled release of H 2 O 2 molecules. Most UHP particles are uniformly dispersed throughout the entire thickness of the films. DMA measurements indicate that the material retains most of its structural characteristics when exposed to water. SEM measurements show that no interface exists between individually spread multilayers. SAXS measurements indicate that the clay platelets are predominantly exfoliated and randomly oriented within the film. Controlled release of H 2 O 2 is found over a period of ≈90–100 min.