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Tunable Morphologies From Bulk Self‐Assemblies of Poly(acryloxypropyl triethoxysilane)‐ b ‐poly(styrene)‐ b ‐poly(acryloxypropyl triethoxysilane) Triblock Copolymers
Author(s) -
Gamys Cé Guinto,
Beyou Emmanuel,
BourgeatLami Elodie,
David Laurent,
Alcouffe Pierre
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201100507
Subject(s) - copolymer , triethoxysilane , materials science , polymer chemistry , lamellar structure , small angle x ray scattering , styrene , polymerization , chemical engineering , polymer , scattering , composite material , optics , engineering , physics
Reactive poly(acryloxypropyl triethoxysilane)‐ b ‐poly(styrene)‐ b ‐poly(acryloxypropyl triethoxysilane) (PAPTES‐ b ‐PS‐ b ‐PAPTES) triblock copolymers are prepared through nitroxide‐mediated polymerization (NMP). The bulk morphologies formed by this class of copolymers cast into films are examined by small‐angle X‐ray scattering (SAXS) and transmission electron microscopy (TEM). The films morphology can be tuned from spherical structures to lamellar structures by increasing the volume fraction of PS in the copolymer. Thermal annealing at temperatures above 100 °C provides sufficient PS mobility to improve ordering.