In polymer physics, spherulites (from Greek sphaira = ball and lithos = stone) are spherical semicrystalline regions inside non- branched linear polymers.

Aug 20, 2021 · Images of i-polypropylene and biodegradable poly (lactic acid) reveal previously unsuspected morphologies such as “vases” and “goblets”, nonspherical “spherulites” and, unexpectedly,...

In petrology, spherulites (/ ˈsfɛrʊlaɪts, sfɪər -/) are small, rounded bodies that commonly occur in vitreous igneous rocks.

The growth rate of the axialites and coarse-grained non-banded spherulites studied in the low and intermediate range of molecular weight was in every case lineal, i.e., dx|dt at a given temperature is a constant regardless of the size of the spherulite or axialite up to the point of impingement.

We find the entire range of observed spherulite morphologies can be reproduced by this generalized phase field model of polycrystalline growth. Many structural materials (metal alloys, polymers, minerals, etc.) are formed by quenching liquids into crystalline solids.

Spherulite production from HAMS and PS was successfully scaled up using a pressure reactor. This study provides a simplified approach for spherulite production, new potential utilization of PS and HAMS, and valuable insights for optimizing formation of starch spherulites.

May 1, 2016 · Polymeric and non-polymeric materials often crystallize as spherulites when crystallized from viscous melts or solutions at large undercooling. The essential component of a spherulite is fibrillar crystals that grow in predominantly radial directions and branch irregularly.

Spherulites are crystalline structures that extend radially from a single point, forming spherical domains. You might find these chapters and articles relevant to this topic. The most commonly studied structure in polymer morphology is the spherulite.

Apr 22, 2024 · Spherulites are small, spheroidal, or globular structures common in glassy volcanic rocks. These bodies have dense masses of tiny, fibrous, prism-like, or acicular crystals of one or more minerals radiating from a common central point, often visible using a hand lens.

the prevalence and practical importance of spherulite formation, only rather qualitative concepts of this phenomenon exist. The present work explains the growth and form of these fundamental condensed matter structures on the basis of a unified field theoretic approach. Our phase field model is the first to