Peculiar Crystal Structure in Poly(ε-caprolactone) and Poly(ε-caprolactone)/Multi-Walled Carbon Nanotube Solvent-Cast Films
摘要
Abstract
The crystal morphologies of poly(ε-caprolactone) solvent-cast films in the absence and presence of multi-walled carbon nanotubes were observed using polarized optical microscopy. The experimental results indicated ring-banded spherulites containing polygonal holes could be induced by dewetting on the surface of the substrate. The polymer crystals assembled into a hierarchical structure induced by the change of the crystallization temperature. Further it was found that the loading of nanotubes into polymer matrix could change the ring-banded structure in the spherulites.