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Confinement Induced First Order Crystallization Kinetics for the Poly(ethylene oxide) Block within A PEO‐ b ‐PB Diblock Copolymer Infiltrated within Alumina Nano‐Porous Template
Author(s) -
Michell Rose Mary,
BlaszczykLezak Iwona,
Mijangos Carmen,
Müller Alejandro J.
Publication year - 2014
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201450313
Subject(s) - nucleation , copolymer , crystallization , materials science , kinetics , chemical engineering , ethylene oxide , oxide , homogeneous , nanopore , polymer chemistry , polymer , chemistry , composite material , nanotechnology , thermodynamics , organic chemistry , physics , quantum mechanics , engineering , metallurgy
Summary We report homogeneous nucleation and first order crystallization kinetics for the PEO block within a PEO‐ b ‐PB diblock copolymer infiltrated within alumina nanopores. For the highly confined heterogeneity free PEO block nano‐domains, the overall crystallization kinetics is dominated by nucleation and therefore becomes first order. The nucleation mechanism changes from heterogeneous nucleation for the PEO block within the uninfiltrated copolymer (since it has a composition with 79% PEO that conforms a percolated matrix) to homogeneous nucleation for confined and isolated heterogeneity free nanodomains.