Journal
NEW JOURNAL OF CHEMISTRY
Volume 40, Issue 8, Pages 6825-6833Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6nj00728g
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Funding
- National Natural Science Foundation of China [51373093]
- Shaanxi Normal University [2015CXS041]
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A multi-responsive supramolecular polymer, beta-CD-(PNIPAAm)(4)-Azo-(PMAA)(7), is demonstrated here. This amphiphilic polymer can be achieved by altering the pH or temperature of a solution of the supramolecular polymer system. Absorption and emission spectroscopy, solution transmittance, dynamic light scattering (DLS), and transmission electron microscopy (TEM) were applied. It was found that beta-CD-(PNIPAAm)(4)-Azo-(PMAA)(7) can self-assemble into inverse spherical polymeric nanoaggregates and can then disassemble reversibly under the irradiation of UV light due to the trans-to-cis isomerization of the azo groups. The resulting supramolecular polymer is demonstrated to have useful properties, including self-aggregation, supramolecular gelation and stimulus-responsive behavior.
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