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Stereocomplex mesophase is for the first time disclosed by annealing of 1:1 poly (l-lactide) (PLLA)/poly (d-lactide) (PDLA) blends just above glass transition temperature. Its structure is analogue to that of stereocomplex crystals, as a result of weak intermolecular interactions between PLLA and PDLA chains. In the limited temperature range formation of stereocomplex mesophase is enhanced with annealing...
The presence of an ionic liquid in the plasticized polylactide (PLA) contributes to enhancement of dielectric permittivity due to its electrical conductivity. Phase separation, induced by thermal annealing and mechanical stretching, respectively, can further enhance dielectric permittivity. It offers opportunities to monitor phase separation in the ionic liquid plasticized PLA by dielectric spectroscopy...
The inherent brittleness of biodegradable polylactide (PLA) limits its large-scale applications. A common route for toughening PLA is to incorporate other components by blending. In achieving good toughness, however, other properties such as strength and transparency are usually sacrificed to a large extent. Here we presented a facile approach to toughen PLA with nanopores. By tailoring solution phase...
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