التفاصيل البيبلوغرافية
| العنوان: |
Effect of Solvent Combination on Electrospun Stereocomplex Polylactic Acid Nanofiber Properties. |
| المؤلفون: |
Septiyanti, Melati, Septevani, Athanasia Amanda, Ghozali, Muhammad, Fahmiati, Sri, Triwulandari, Evi, Restu, Witta Kartika, Meliana, Yenny, Matsumoto, Takuya, Nishino, Takashi |
| المصدر: |
Macromolecular Symposia; Jun2020, Vol. 391 Issue 1, p1-5, 5p |
| مصطلحات موضوعية: |
POLYLACTIC acid, MELTING points, DIFFERENTIAL scanning calorimetry, INFRARED spectroscopy, THERMAL properties, X-ray spectroscopy |
| مستخلص: |
Polylactic acid (PLA) has been known as bio‐based polymer for the development of bioplastic with promising properties such as biodegradable, biocompatible, non‐toxic, and renewable. However, its low thermal properties have limited its applications. Thus, in this study stereocomplex PLA (sc‐PLA) is investigated with the aim to improve thermal properties by mixing poly L‐lactic acid (PLLA) and poly D‐lactic acid (PDLA) in solution blend combination via electrospinning. The electrospun sc‐PLA fiber is prepared in combination of chloroform (CHCl3), N,N‐dimethylformamide, and hexafluoroisopropanol (HFIP). The effect of solvents in the properties of sc‐PLA is analyzed using Fourier‐transform infrared spectroscopy and X‐ray diffraction (XRD) to understand chemical interaction between PLLA and PDLA. Differential scanning calorimetry and thermo gravimetric analyzer is used to understand the thermal properties of sc‐PLA. It is found that the optimum solvent combination for sc‐PLA nanofiber is CHCl3/HFIP 9:1 with the smallest nanofiber diameter 39.7 nm and the melting point improved by 47 °C compared with neat PLA due to stereocomplexation between PLLA and PDLA. [ABSTRACT FROM AUTHOR] |
|
Copyright of Macromolecular Symposia is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
Full Text Finder