Figure 21.

TEM images of (a) GO and (b) purified GO-g-PDLA. Temperature dependency of storage modulus (E’) for PLLA mixed with various concentrations of (c) GO-g-PDLA. (d) Variation in storage modulus at 195 °C as a function of the PDLA content for PLLA/PDLA and PLLA/GO-g-PDLA mixtures, respectively. (e) Schematic showing the synthesis of GO-g-PDLA by the direct melt-polycondensation approach and the formation of GO enhanced stereocomplex (Sc) network. p-TSA stands for p-toluenesulfonic acid [79].