Abstract
Poly (ester-co-ether) as a potential ''green'' plasticizer for poly(lactic acid) (PLA) was synthesized from diethylene glycol adipate (DEAP) with neopentylglycol adipate (NPAP). The chemical structure of poly (diethylene glycol adipate -co- neopentylglycol adipate) (PDNA) was characterized by FTIR. PLA was plasticized by adding various PDNA contents. Tensile measurements results showed that with the addition of plasticizer, the tensile strength of the PLA/PDNA blends decreased and the elongation at break was greatly improved. Rheological properties of PLA/PDNA blends were investigated by a parallel plate rheometer (PPR).
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