Block copolymers composed of poly(trimethylene carbonate) and polylactide can be processed at ambient temperature under pressure by a reversible pressure-induced phase transition between an ordered (solid) state disordered (melt/solid) state.

Abstract In this study, poly (L-lactide) (PLLA), (D-lactide) (PDLA), and their blend (stereocomplex; SC) were investigated by terahertz spectroscopy. Absorption spectra obtained for PLLA isothermally crystallized in a temperature range of 80 °C–140 °C, eight characteristic peaks observed the frequency 1–15 THz. No obvious spectral difference between PDLA was observed, indicating that chirality ...

Two isomeric molecules, 1,2-cyclohexanediol and isohexide (isosorbide isomannide) demonstrated potential as rigid building blocks in PLA plasticizer design with tunable material performances. Six candidates were synthesized via Fischer esterification bulk of the cores green platform chemicals levulinic acid valeric acid. The structures confirmed by 1H NMR ESI-MS. Based on calculated Hansen solu...

Polymeric nanoparticles (NPs), prepared via coprecipitation of drugs and polymers, are promising drug delivery vehicles for treating diseases with improved efficacy and reduced toxicity. Here, we report an unprecedented strategy for preparing polylactide-cyclosporine A (PLA-CsA) NPs (termed CsA-NPs) through CsA-initiated ring-opening polymerization of lactide (LA) followed by nanoprecipitation....

Spun-cast hlms ot polystyiene (PS) blended with polylactide (PLA) weie visualized and chaiacten/ed using atomic foice micioscopy (AFM) and synchtoti on-based X-iay photoemission election micioscopy (X-PEEM) The composition ot the two polymets in these systems was deteimined by quantitative chemical analysis ot neat-edge X-tay absorption signals lecoided with X-PEEM The surface morphology depend...