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Issue 21, 2017
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Self-assembly of PS-PNaSS-PS triblock copolymers from solution to the solid state

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Abstract

Block copolymer assemblies are fascinating objects that have been studied for years. In this work, the PS-PNaSS-PS ABA triblock copolymer was synthesized by RAFT polymerization and self-assembled in a selective medium (THF/water). Various morphologies of aggregates were identified (spheres, cylinders, and vesicles) but we focused on large compound vesicles which gave birth to porous materials after solvent evaporation. The change in solvent composition upon drying was modeled and correlated to the change in morphology observed using microscopy techniques such as AFM, TEM and cryo-TEM. The large compound vesicles were found to partially fuse to form a bulk material before the vesicular compartments were opened to yield pores of about 30 nm.

Graphical abstract: Self-assembly of PS-PNaSS-PS triblock copolymers from solution to the solid state

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Publication details

The article was received on 30 Mar 2017, accepted on 28 Apr 2017 and first published on 28 Apr 2017


Article type: Paper
DOI: 10.1039/C7PY00531H
Citation: Polym. Chem., 2017,8, 3357-3363
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    Self-assembly of PS-PNaSS-PS triblock copolymers from solution to the solid state

    S. Nehache, M. Semsarilar, M. In, P. Dieudonné-George, J. Lai-Kee-Him, P. Bron, D. Bouyer, A. Deratani and D. Quemener, Polym. Chem., 2017, 8, 3357
    DOI: 10.1039/C7PY00531H

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