Abstract
The advanced bio-based composite of stereocomplex polylactide containing cellulose nanowhiskers was successfully prepared by supercritical fluid technology. This bio-stereocomplex-nanocomposite material was produced by stereocomplexation of polylactide-graftcellulose nanowhishkers through supercritical carbon dioxide-dichloromethane at 65 °C and 350 bar. The bio-stereocomplex-nanocomposite polylactide was obtained in high stereocomplex degree (100%). The bio-stereocomplex-nanocomposite polylactide exhibits excellent stereocomplex memory which is the main limitation of linear stereocomplex polylactide. It also shows improvement in mechanical properties up to 2.70 GPa (Young's modulus) and thermal degradation temperature. The combination of stereocomplex and nanocomposite approaches offers simultaneous improvement on physical properties. The bio-stereocomplex-nanocomposite polylactide is promising material in the future to replace petroleum-based polymer as eco-friendly materials.
| Original language | English |
|---|---|
| Pages (from-to) | 430-435 |
| Number of pages | 6 |
| Journal | Polymer Degradation and Stability |
| Volume | 109 |
| DOIs | |
| Publication status | Published - 2014 Nov |
Bibliographical note
Funding Information:This study was supported by the National Research Foundation of Korea Grant funded by the Korea Government (MEST), NRF-2010-C1AAA001-0028939 .
Publisher Copyright:
© 2014 Elsevier Ltd.
Keywords
- Eco-friendly polymer
- Nanocomposite
- Polylactide
- Stereocomplex
- Stereocomplex memory
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Polymers and Plastics
- Materials Chemistry