Water resistance and antimicrobial properties of poly(vinyl alcohol) composite films containing surface-modified tetrapod zinc oxide whiskers

Dowan Kim, Soni Lee, Hyok Kwon, Jongchul Seo

Research output: Contribution to journalArticle

Abstract

Tetrapod zinc oxide whiskers (TZnO-W) were successfully synthesized via a thermal oxidation method and surface-modified TZnO-W (STZnO-W) were prepared using a silane coupling agent to ensure good dispersion interaction in a poly(vinyl alcohol) (PVA) matrix. Their chemical structure, morphology, and antimicrobial properties were investigated. Additionally, five different PVA/STZnO-W composite films were prepared with different STZnO-W content. Compared with pure PVA, the thermal properties and moisture barrier properties of the PVA/STZnO-W composite films were enhanced as STZnO-W, which may be the result of the strong interfacial interactions of the -OH groups of PVA and -NH2 of STZnO-W in the composite films. Furthermore, the addition of STZnO-W with a high surface to volume ratio and hydrophobicity may act as an excellent moisture barrier and form a tortuous path to adsorb and diffuse water molecules in the PVA matrix. The PVA/STZnO-W composite films showed remarkably enhanced antimicrobial activity against gram-negative micro-organisms such as Escherichia coli (E. coli) and Vibrio vulnificus (V. vulnificus) compared with gram-positive micro-organisms, such as Staphylococcus aureus (S. aureus). The enhanced thermal, moisture and antimicrobial properties achieved by incorporating STZnO-W can be advantageous in various packaging applications, though the antimicrobial properties around gram-positive micro-organisms require further research.[Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1134-1143
Number of pages10
JournalMacromolecular Research
Volume23
Issue number12
DOIs
Publication statusPublished - 2015 Dec 1

Fingerprint

Zinc Oxide
Composite films
Zinc oxide
Alcohols
Water
Moisture
Silanes
Coupling agents
Hydrophobicity
Escherichia coli
Packaging
Thermodynamic properties

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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title = "Water resistance and antimicrobial properties of poly(vinyl alcohol) composite films containing surface-modified tetrapod zinc oxide whiskers",
abstract = "Tetrapod zinc oxide whiskers (TZnO-W) were successfully synthesized via a thermal oxidation method and surface-modified TZnO-W (STZnO-W) were prepared using a silane coupling agent to ensure good dispersion interaction in a poly(vinyl alcohol) (PVA) matrix. Their chemical structure, morphology, and antimicrobial properties were investigated. Additionally, five different PVA/STZnO-W composite films were prepared with different STZnO-W content. Compared with pure PVA, the thermal properties and moisture barrier properties of the PVA/STZnO-W composite films were enhanced as STZnO-W, which may be the result of the strong interfacial interactions of the -OH groups of PVA and -NH2 of STZnO-W in the composite films. Furthermore, the addition of STZnO-W with a high surface to volume ratio and hydrophobicity may act as an excellent moisture barrier and form a tortuous path to adsorb and diffuse water molecules in the PVA matrix. The PVA/STZnO-W composite films showed remarkably enhanced antimicrobial activity against gram-negative micro-organisms such as Escherichia coli (E. coli) and Vibrio vulnificus (V. vulnificus) compared with gram-positive micro-organisms, such as Staphylococcus aureus (S. aureus). The enhanced thermal, moisture and antimicrobial properties achieved by incorporating STZnO-W can be advantageous in various packaging applications, though the antimicrobial properties around gram-positive micro-organisms require further research.[Figure not available: see fulltext.]",
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Water resistance and antimicrobial properties of poly(vinyl alcohol) composite films containing surface-modified tetrapod zinc oxide whiskers. / Kim, Dowan; Lee, Soni; Kwon, Hyok; Seo, Jongchul.

In: Macromolecular Research, Vol. 23, No. 12, 01.12.2015, p. 1134-1143.

Research output: Contribution to journalArticle

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T1 - Water resistance and antimicrobial properties of poly(vinyl alcohol) composite films containing surface-modified tetrapod zinc oxide whiskers

AU - Kim, Dowan

AU - Lee, Soni

AU - Kwon, Hyok

AU - Seo, Jongchul

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