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American Chemical Society, Macromolecules, 17(41), p. 6393-6399, 2008

DOI: 10.1021/ma800147e

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Poly(tert-butyl methacrylate-b-styrene-b-4-vinylpyridine) Triblock Copolymers: Synthesis, Interactions, and Self-Assembly

Journal article published in 2008 by Gerrit Gobius du Sart, Gerrit Gobius du Sart, Rachmawati Rachmawati, Vincent Voet, Gert Alberda van Ekenstein, Gert Alberda van Ekenstein, Gerrit ten Brinke, Evgeny Polushkin, Gerrit ten Brinke, Katja Loos ORCID
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This paper is available in a repository.

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Abstract

Using atom transfer radical polymerization (ATRP), poly(tert-butyl methacrylate-b-styrene-b-4-vinylpyridine) or PtBMA-b-PS-b-P4VP linear triblock copolymers were synthesized. Different homopolymer and diblock copolymer macroinitiators were used for different block copolymerizations. For a selected triblock copolymer the self-assembly was studied with transmission electron microscopy (TEM), small-angle X-ray scattering (SAXS), and thermal analysis. Indications were found for a core-shell hexagonal ordering of coaxial cylinders with P4VP cylinders separated from the PtBMA matrix phase by a PS shell layer. To further support this, the interaction parameter between styrene and tBMA was investigated by a random copolymer blend miscibility study on blends of P(S-co-tBMA) random copolymers with PS and found to satisfy 0.08 < χS,tBMA < 0.10.