3/2/2024 0 Comments Dendrites in crystals![]() īassett DC, Vaughan AS (1984) On the lamellar morphology of melt-crystallized isotactic polystyrene. Yeh CF, Su AC, Chen M, Sugimoto R (1995) Changes in optical texture of α-spherulites of isotactic polypropylene upon partial melting and recrystallization. Norton DR, Keller A (1985) The spherulitic and lamellar morphology of melt-crystallized isotactic polypropylene. Schultz JM (2012) Self-generated fields and polymer crystallization. Michell RM, Müller AJ (2016) Confined crystallization of polymeric materials. ![]() The results yield interesting consistency for constructing workable mechanisms to account for each type of morphologies with respect to their molecular weights and crystallization kinetics conditions (i.e., T c, space confinements, film thickness, blend interaction, as well as blend composition). This article reviews and summarizes the top-surface-relief morphology and interior dissections of polymer dendritic spherulites, where the dendrites may be composed of ringed stripes or fibrous cilia crystals. Investigation to the diversified patterns of lamellar assembly into polymer dendritic spherulites has come to several key conclusions. Diffusion-controlled growth patterns emerge, which change the details of dendritic morphology depending on T c (degree of super-cooling), polymer-diluent interactions, confinement. Crystallized polymers can exist in states of different degrees of order, which lead to the resulting assembled morphologies are of non-equilibrium supramolecular hierarchical patterns of crystal structures. ![]() Dendritic spherulites are one type of diversified ways of crystal aggregations into micrometer-size consortia by kinetics-driven assembly from nanometer-size crystal plates (i.e., lamellae or single crystals).
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