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Issue 35, 2013
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Synthesis and solution self-assembly of block copolymers with a gradient, crystallizable polyferrocenylsilane core-forming metalloblock

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Abstract

Well-defined block copolymer micelles can be generated by crystallization-driven living self-assembly processes using highly asymmetric diblock copolymers, typically comprised of a much shorter crystalline core-forming polyferrocenylsilane (PFS) block and a longer corona-forming coblock. In order to better understand the underlying mechanism and broaden the scope of crystallization-driven self-assembly processes, further detailed studies of crystalline-coil block copolymers with controlled variations in the crystalline core structure are needed. Here we report studies of asymmetric PI-b-P(FDMS-co-FDES) diblock terpolymers (PI = polyisoprene), where the crystallizable core contains a mixture of ferrocenyldimethylsilane (FDMS) and ferrocenyldiethylsilane (FDES) repeating units. The core-forming metalloblock exhibits an almost gradient structure, as revealed by kinetic studies. Cylindrical micelles were obtained in n-hexane, and were characterised by TEM and WAXS, and the results are compared with the self-assembly behaviour of structurally similar PI-b-PFDMS and PI-b-PFDES diblock copolymers.

Graphical abstract: Synthesis and solution self-assembly of block copolymers with a gradient, crystallizable polyferrocenylsilane core-forming metalloblock

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Publication details

The article was received on 27 Mar 2013, accepted on 11 Jul 2013 and first published on 16 Jul 2013


Article type: Paper
DOI: 10.1039/C3SM50859E
Soft Matter, 2013,9, 8569-8578

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    Synthesis and solution self-assembly of block copolymers with a gradient, crystallizable polyferrocenylsilane core-forming metalloblock

    F. H. Schacher, V. Bellas, M. A. Winnik and I. Manners, Soft Matter, 2013, 9, 8569
    DOI: 10.1039/C3SM50859E

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