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Issue 20, 2016
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A triblock terpolymer vs. blends of diblock copolymers for nanocapsules addressed by three independent stimuli

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Abstract

Stimuli-responsive micro- to nano-scale containers have gained increasing attention due to their unique potential to selectively release payloads under specific environmental conditions. We report here novel triple stimuli-responsive nanocapsules that selectively respond to changes in temperature, pH value, and redox potential. The nanocapsules were prepared from either a triple responsive triblock terpolymer or a blend of responsive diblock copolymers, both synthesized by sequential anionic polymerization. We then compared the release performance of nanocapsules under oxidative conditions and changes of temperature or pH value. Our results reveal the close correlation between the release properties of stimuli-responsive nanocontainers and the microstructure of the polymer shell. In fact, the microphase separation between the responsive diblock copolymers across the shell significantly hinders the triggered release of the payload from the nanocapsules. These results demonstrate that the fine morphology of triblock terpolymers can be exploited to achieve the triggered release of payloads from polymer nanocontainers upon application of three different external triggers.

Graphical abstract: A triblock terpolymer vs. blends of diblock copolymers for nanocapsules addressed by three independent stimuli

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Publication details

The article was received on 24 Feb 2016, accepted on 14 Apr 2016 and first published on 14 Apr 2016


Article type: Paper
DOI: 10.1039/C6PY00344C
Polym. Chem., 2016,7, 3434-3443
  • Open access: Creative Commons BY license
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    A triblock terpolymer vs. blends of diblock copolymers for nanocapsules addressed by three independent stimuli

    S. Behzadi, M. Gallei, J. Elbert, M. Appold, G. Glasser, K. Landfester and D. Crespy, Polym. Chem., 2016, 7, 3434
    DOI: 10.1039/C6PY00344C

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