Synthesis and Characterization of Poly(L-Lactic acid)/Clay Nanocomposite via Metal-Free Process

Basaran I., ORAL A.

POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING, vol.52, no.12, pp.1271-1276, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 52 Issue: 12
  • Publication Date: 2013
  • Doi Number: 10.1080/03602559.2013.814146
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Biotechnology Research Abstracts, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.1271-1276
  • Çanakkale Onsekiz Mart University Affiliated: Yes


Biopolymer nanocomposite was synthesized using metal-free catalyst which is Montmorillonite-K10 as organic filler and acid catalyst for polymerization of L-Lactic acid. To evaluate the effect of Montmorillonite onto polymer properties, 1, 3 and 5% clay were used. Products were characterized using X-ray diffraction and transmission electron microscopy. Thermal parameters of products were investigated via differential scanning calorimeter and thermo-gravimetric analyzer. Thermal stability, degree of crystallinity, temperatures for glass transition, crystallization and melting of the nanocomposites were studied. Effect of clay onto molecular weight was investigated via gel permeation chromatography. It was found that properties of polymer were influenced by addition of clay.