Effect of Solvent Combination on Electrospun Stereocomplex Polylactic Acid Nanofiber Properties

被引：4

作者：

Septiyanti, Melati ^{[1
]}

Septevani, Athanasia Amanda ^{[1
]}

Ghozali, Muhammad ^{[1
]}

Fahmiati, Sri ^{[1
]}

Triwulandari, Evi ^{[1
]}

Restu, Witta Kartika ^{[1
]}

Meliana, Yenny ^{[1
]}

Matsumoto, Takuya ^{[2
]}

Nishino, Takashi ^{[2
]}

机构：

[1] Indonesian Inst Sci, Res Ctr Chem, South Tangerang 15314, Banten, Indonesia

[2] Kobe Univ, Grad Sch Engn, Dept Chem Sci & Engn, Kobe, Hyogo, Japan

来源：

MACROMOLECULAR SYMPOSIA | 2020年 / 391卷 / 01期

关键词：

biopolymers; electrospinning; nanocomposite; polylactic acid; polymer complexes; BEHAVIOR; POLYMER; FIBERS; DEGRADATION; MORPHOLOGY; SYSTEM; PLLA; CELL;

D O I：

10.1002/masy.201900134

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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 degrees C compared with neat PLA due to stereocomplexation between PLLA and PDLA.

引用

页数：5