Mechanism Study on Surface Activation of Surfactant-Modified Polyvinyl Siloxane Impression Materials

Doug Youn Lee, Young Il Oh, Kyung Ho Chung, Kwangmahn Kim, Kyoung Nam Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This study examined the mechanism on the surface activation of hydrophilic polyvinyl siloxane impression materials incorporated with nonionic surfactants. Hydrophilic polyvinyl siloxane impression materials were prepared with a polydimethylsiloxane composition and nonionic surfactants. The surfactants used were nonylphenoxy poly(ethyleneoxy) ethanol homologs of varying ethyleneoxy chain length. These homologs were designated NP4, NP6, and NP10 according to the mole number of ethyleneoxy group (hydrophilic group) of 4, 6, and 10, respectively. The incorporation of a nonionic surfactant into polyvinyl siloxanes enhanced their hydrophilicity and consequently led to the significant reduction in the contact angles. The higher the concentration of surfactant that was incorporated, the lower the contact angles that were observed. The contact angle was lowest when NP4 was incorporated, even though NP4 is less hydrophilic than NP6 and NP10, which implies that the exposed surfactant concentration on the surface was highest when NP4 was used. Relatively lower surface energy of NP4 among three surfactants would induce spatial distribution of NP4 on the hydrophobic surface of polyvinyl siloxane and consequently resulted in higher surfactant concentration on the surface of the silicone impression material. The surfactant dispersion size also seemed to be relevant for the surface activation in these surfactant-modified silicone impression materials.

Original languageEnglish
Pages (from-to)2395-2401
Number of pages7
JournalJournal of Applied Polymer Science
Volume92
Issue number4
DOIs
Publication statusPublished - 2004 May 15

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Surface-Active Agents
Surface active agents
Chemical activation
Nonionic surfactants
Contact angle
Silicones
Hydrophilicity
Polydimethylsiloxane
vinyl polysiloxane
Chain length
Interfacial energy
Spatial distribution
Ethanol
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Lee, Doug Youn ; Oh, Young Il ; Chung, Kyung Ho ; Kim, Kwangmahn ; Kim, Kyoung Nam. / Mechanism Study on Surface Activation of Surfactant-Modified Polyvinyl Siloxane Impression Materials. In: Journal of Applied Polymer Science. 2004 ; Vol. 92, No. 4. pp. 2395-2401.
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Mechanism Study on Surface Activation of Surfactant-Modified Polyvinyl Siloxane Impression Materials. / Lee, Doug Youn; Oh, Young Il; Chung, Kyung Ho; Kim, Kwangmahn; Kim, Kyoung Nam.

In: Journal of Applied Polymer Science, Vol. 92, No. 4, 15.05.2004, p. 2395-2401.

Research output: Contribution to journalArticle

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