Interaction between the functional groups of PLA and PPC provides partial miscibility of the two polymers, as revealed by TMDSC and DMA analysis.
g] of the PPC phase increases, as revealed by TMDSC.
The increase of spherulite growth rate of PLA has been rationalized taking into account the results of TMDSC and DMA analysis, which probed a progressive decrease of the glass transition of the PLA-rich phase with the nominal PPC content in the blends.
To investigate the influence of the plasticizing molecules on the molecular mobility of PLA, standard DSC and TMDSC analysis are performed on each material.
The molecular mobility of plasticized non-aged samples is investigated with TMDSC using the CRR concept.
The TMDSC permits the determination of the thermal characteristics of this phase.
ra] (%) 0 TMDSC Amorphous sc-PLA inter- PLA spherulitic phase [T.
The rheological results were compared to those obtained by TMDSC analysis.
Calculation of the Weight Fraction of the Interface Using TMDSC Results
The weight fraction of the interface was calculated using TMDSC results, as suggested by Hourston and Song .
TMDSC not only provides the "total" heat flow such as that from conventional DSC, but also separates that "total" heat flow into its heat capacity-related (reversing) component, and a non-reversing (N R) component (14, 22, 23, 26-29).
With TMDSC and an independent rapid heating rate technique for determining melting points without recrystallization contributions (14, 23), we have approximately confirmed the model of Zhou et al.