Study of banded structure in polymer spherulites by polarized micro-Raman spectroscopy

Abstract

Polarized micro-Raman spectroscopy has been used to study polymer blends of poly (ε-caprolactone), poly (vinyl methyl ether), and poly(styrene) for the first time. The banded pattern is attributed to the twist of the lamellae from microscopic (vibrational spectroscopic) measurements on the orientation of the lamellae. Polarized micro-Raman spectroscopy is shown to be a powerful method for studying high order structures of polymers on the molecular level.