Decoupling the Roles of Chain Length, Entanglements, and Intermolecular Interactions on the Melt Memory of Semicrystalline Polar Homopolymers.

M Ali Aboudzadeh, Leire Sangroniz, Olivier Coulembier, Marcello Ferranti, Salvatore Costanzo, Nino Grizzuti, D Cavallo, Alejandro J Müller

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Article in Macromolecules, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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8 authors.

M Ali AboudzadehPOLYMAT and Department of Applied Chemistry, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain.ORCID https://orcid.org/0000-0001-8829-8072

Leire SangronizPOLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain.ORCID https://orcid.org/0000-0003-0714-3154

Olivier CoulembierLaboratory of Polymeric and Composite Materials, University of Mons, Place du Parc 23, Mons 7000, Belgium.ORCID https://orcid.org/0000-0001-5753-7851

Marcello FerrantiDepartment of Chemical, Materials, and Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, Naples 80125, Italy.

Salvatore CostanzoDepartment of Chemical, Materials, and Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, Naples 80125, Italy.ORCID https://orcid.org/0000-0003-1780-389X

Nino GrizzutiDepartment of Chemical, Materials, and Production Engineering (DICMAPI), University of Naples Federico II, P.le Tecchio 80, Naples 80125, Italy.ORCID https://orcid.org/0000-0001-5866-609X

D CavalloDepartment of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, Genoa 16146, Italy.ORCID https://orcid.org/0000-0002-3274-7067

Alejandro J MüllerPOLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, Donostia-San Sebastián 20018, Spain.ORCID https://orcid.org/0000-0001-7009-7715

Funding

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6 · The paper itself

Abstract

In polymer crystals, chains are closely packed within unit cells. If they are heated above their melting point, they require a specific temperature and time to revert their ordered conformations to isotropic random coils in the melt. When the temperature is slightly above the melting point and all crystals have melted, the chains may retain a memory of the conformations they had in the crystals, i.e., they remember some of the extended or oriented conformations that they had in crystallographic registry. This causes enhanced recrystallization, a property denoted melt memory. Its exact nature remains a central question in polymer crystallization. Here, we combine small-angle X-ray scattering (SAXS) and differential scanning calorimetry (DSC) self-nucleation experiments to systematically investigate the molecular origin of melt memory in poly-(ε-caprolactone) (PCL) and poly-(ethylene oxide) (PEO) model samples, spanning a range of molecular weights from oligomers to highly entangled polymers. The entanglement molecular weights (

Identifiers

PMID41924026

DOI10.1021/acs.macromol.5c03323

PMCPMC13037052

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