An advanced class of bio-hybrid materials: Bionanocomposites of inorganic clays and organic stereocomplex polylactides

Purba Purnama, Youngmee Jung, Soo Hyun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)


Bio-stereo nanocomposite polylactides are prepared by polymerization followed by stereocomplexation in scCO2/dichloromethane through in situ polymerization and master batch processes. The bio-stereo nanocomposite polylactides show intercalated-exfoliated and fully exfoliated nanoscale clay distribution in a perfect stereocomplex polylactide matrix. In situ polymerization proves better strategy to produce well-exfoliated silicate layers in the stereocomplex matrix compared to the MB route that increases the melting temperature by up to ≈64 °C. The thermal properties of these materials maintain both stereocomplex and nanocomposite features simultaneously. The results open a new and versatile way to develop polylactide-based materials. An advanced class of bio-hybrid material was developed and named bio-stereo nanocomposite polylactide. These novel polylactide-based materials consist of intercalated-exfoliated and fully exfoliated clay distributions in a crystalline stereocomplex polylactide. The bio-stereo nanocomposite polylactide possesses unique properties that contain both stereocomplex and nanocomposite features.

Original languageEnglish
Pages (from-to)263-269
Number of pages7
JournalMacromolecular Materials and Engineering
Issue number3
Publication statusPublished - 2013 Mar 1
Externally publishedYes



  • bio-hybrid materials
  • bionanocomposites
  • nanocomposites
  • polylactides
  • stereocomplex

ASJC Scopus subject areas

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

Cite this