CRYSTALLIZATION BEHAVIOR AND MORPHOLOGY OF POLY(BUTYLENE SUCCINATE)/POLY(BUTYLENE ADIPATE) BLEND

摘要

@@The miscibility, morphology, and crystallization behavior of PBS/PBA blend were studied. PBS and PBA were found to be miscible in the amorphous phase, and fractional crystallization of PBA was observed in the blends with low PBA content. DSC and WAXD results show that the PBA component mainly forms P-form crystals in PBS-rich blends and a-form crystals in PBA-rich blends at the same cooling rate (Figure 1). Morphological observation reveals that the different location distribution of PBA (e.g., in the interlamellar, interfibrillar or interspherulitic regions of PBS) controls its crystallization behavior.