Non-isothermal crystallization kinetics and spherulitic morphology of nucleated poly(lactic acid): effect of dilithium cis-4-cyclohexene-1,2-dicarboxylate as a novel and efficient nucleating agent

摘要: The effect of dilithium cis-4-cyclohexene-1,2-dicarboxylate (CHDA-Li) as a novel and efficient nucleating agent on the crystallization behaviors spherulitic morphology poly(lactic acid) (PLA) well non-isothermal kinetics nucleated PLA was studied by means differential scanning calorimetry polarized light microscopy. results show that CHDA-Li serves good to accelerate rate PLA. nucleation ability is superior octamethylenedicarboxylic dibenzoylhydrazide. With incorporation CHDA-Li, number spherulites increases, size decreases significantly. can be described Jeziorny's Mo's models. activation energies (ΔE) were calculated Kissinger's Friedman's methods. PLA/0.5 wt% sample faster than PLA/0.2 wt% sample, while ΔE former lower latter. Copyright © 2015 John Wiley & Sons, Ltd.