To prove whether the interaction of PLA
and TPS exists, all samples were dissolved in
chloroform. Without a good phase adhesion, TPS
would float on the surface of the chloroform rather
than well-suspended in solvent. From observation
and Figure 3, the solution containing TPSM2 was
most turbid. The TPSM2 solution consisted of
suspended particles whereas the PHY solution was
rather clear. This suggested that the reaction of
reactive agents with PLA and TPS could occur in
TPSM2. However, for MTPS, where MA added in
TPS preparation step, the mechanical properties
were not improved. The tensile strength of MTPS
was comparable to that of PHY.