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Issue 8, 2012
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Supramolecular mimics of phase separating covalent diblock copolymers

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Abstract

In this study, we explore the supramolecular association and phase separation properties of non-covalent analogues of polystyrene-b-polyethylene glycol (PS-b-PEG) and polystyrene-b-polyisoprene (PS-b-PI) diblock copolymers. For this purpose, a PS homopolymer is end-functionalized with a quadruple hydrogen bonding unit and PEG and PI homopolymers are end-functionalized with a hetero-complementary hydrogen bonding group. Hetero-dimerization between the complementary chain ends of the respective homopolymers furnishes supramolecular (s) PS-s-PEG and PS-s-PI diblock copolymers with phase-separation studies in thin films and bulk demonstrating that the non-covalent block copolymers are capable of self-organizing into nanostructured morphologies reminiscent of their covalent analogues.

Graphical abstract: Supramolecular mimics of phase separating covalent diblock copolymers

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Publication details

The article was received on 03 Mar 2012, accepted on 06 Apr 2012 and first published on 15 May 2012


Article type: Paper
DOI: 10.1039/C2PY20125A
Citation: Polym. Chem., 2012,3, 2050-2056
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    Supramolecular mimics of phase separating covalent diblock copolymers

    J. Rao, E. Păunescu, M. Mirmohades, I. Gadwal, A. Khaydarov, C. J. Hawker, J. Bang and A. Khan, Polym. Chem., 2012, 3, 2050
    DOI: 10.1039/C2PY20125A

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