Preparation of the Polymer-Clay Nanocomposites in Exfoliated State by Interface Stabilization

Sang-Soo Lee, Junkyung Kim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

To suppress the repulsive interfacial energy between hydrophilic clay and a hydrophobic polymer matrix for polymer-clay nanocomposites, a third component of amphiphilic nature such as poly(e-caprolactone) (PCL) was introduced into the styreneacrylonitrile copolymers (SAN)/Na-montmorillonite system. Once e-caprolactone was polymerized in the presence of Na-montmorillonite, the successful ring-opening polymerization of e-caprolactone and the well-developed exfoliated structure of PCL/Namontmorillonite mixture were confirmed. Thereafter, SAN was melt-mixed with PCL/Na-montmorillonite nanocomposite, and the SAN matrix and PCL fraction were completely miscible to form a homogeneous mixture with retention of the exfoliated state of Na-montmorillonite, exhibiting that PCL effectively stabilizes the repulsive polymerclay interface and contributes to the improvement of the mechanical properties of nanocomposites.

Original languageEnglish
Pages (from-to)246-252
Number of pages7
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume42
Issue number2
DOIs
Publication statusPublished - 2004 Jan 15

Fingerprint

Bentonite
montmorillonite
Clay minerals
clays
Nanocomposites
nanocomposites
Polymers
Clay
Stabilization
stabilization
copolymers
preparation
Copolymers
polymers
interfacial energy
Ring opening polymerization
matrices
Polymer matrix
Interfacial energy
polymerization

Keywords

  • Clay
  • Compatibilization
  • Exfoliation
  • Nanocomposites

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

Cite this

Preparation of the Polymer-Clay Nanocomposites in Exfoliated State by Interface Stabilization. / Lee, Sang-Soo; Kim, Junkyung.

In: Journal of Polymer Science, Part B: Polymer Physics, Vol. 42, No. 2, 15.01.2004, p. 246-252.

Research output: Contribution to journalArticle

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