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Issue 35, 2018, Issue in Progress
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Honeycomb-patterned porous films fabricated via self-organization of Tb complex-loaded amphiphilic copolymers

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Abstract

Amphiphilic copolymers, poly(styrene)-block-Tb complex (PS-b-Tb complex), were synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization. The honeycomb structured porous films were fabricated via dropping the PS-b-Tb complex copolymer solutions on glass substrates by the breath figures method (BFM). The structure and composition of the amphiphilic copolymer PS-b-Tb complex were confirmed by gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FT-IR) and 1H nuclear magnetic resonance spectroscopy (1H NMR). The surface morphology and elemental mapping of the highly ordered porous films were investigated by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and laser scanning confocal microscopy (LSCM). The results indicated that the solvent type and copolymer concentration can affect the surface morphology of the porous films. The average diameter of the pores in the porous films decreased with the polymer concentration and the molecular weight of the copolymers increased. The FESEM-EDX analysis further verified that the hydrophilic groups (Tb complex groups) were mainly distributed at the pore wall, instead of at the outer surface layer of the films, which was consistent with the LSCM results.

Graphical abstract: Honeycomb-patterned porous films fabricated via self-organization of Tb complex-loaded amphiphilic copolymers

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Publication details

The article was received on 07 Apr 2018, accepted on 20 May 2018 and first published on 29 May 2018


Article type: Paper
DOI: 10.1039/C8RA02980F
Citation: RSC Adv., 2018,8, 19524-19531
  • Open access: Creative Commons BY-NC license
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    Honeycomb-patterned porous films fabricated via self-organization of Tb complex-loaded amphiphilic copolymers

    Q. Liu, C. Yan, Y. Li, M. Li, L. Bai, L. Wang and G. Li, RSC Adv., 2018, 8, 19524
    DOI: 10.1039/C8RA02980F

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