Abstract
The morphology and melting behavior of overgrown lamellae (i. e., kebabs) in shish-kebab composite crystals for isothermally cold-crystallized isotactic polystyrene (iPS) have been studied using transmission electron microscopy (TEM). The bright- and dark-field morphological investigations indicate that the entire shish-kebab entity consists of at least three components: the central backbone (i. e., extended-chain type shish crystals), the (partially extended-chain type) micellar kebabs and the folded-chain type lamellar kebabs. The morphological transformation between the micro- and macro-kebabs is reversible and can be realized via (partial) melting and recrystallization processes, due to the differences in their thermal stability.
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