Summary: The crystallization behavior of crystalline‐crystalline diblock copolymer containing poly(ethylene oxide) (PEO) and poly( ε ‐caprolactone) (PCL), in which the weight fraction of PCL is 0.815, has been studied via differential scanning calorimeter (DSC), wide‐angle X‐ray diffraction (WAXD), and polarized optical microscopy (POM). DSC and WAXD indicated that both PEO and PCL blocks crystallize in the block copolymer. POM revealed a ring‐banded spherulite morphology for the PEO‐ b ‐PCL diblock copolymer. DSC heating curve for the PEO‐ b ‐PCL block copolymer. magnified image DSC heating curve for the PEO‐ b ‐PCL block copolymer.
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Jiang et al. (2004) studied this question.
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