Responsive single-chain polymer nanoparticles with host–guest features

文献情報

出版日 2015-05-21

DOI 10.1039/C5PY00600G

インパクトファクター 5.582

著者

Longyu Li, Lizong Dai, S. Thayumanavan

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要旨

We report a facile approach to form ultra-fine single-chain polymer nanoparticles (SCPNs) via disulfide-based intrachain crosslinking of single polymer chains of a random copolymer poly(HEMA-co-PDSEMA). The SCPNs, which were prepared under mild reaction conditions and at normal reaction concentrations (up to 10 mg mL−1), have been characterized by 1H nuclear magnetic resonance (1H NMR) spectroscopy, atomic force microscopy (AFM), differential scanning calorimetry (DSC), gel permeation chromatography (GPC), and dynamic light scattering (DLS). The influences of the crosslinking density, the molecular weight and the initial concentration of the polymer upon the formation of SCPNs are also reported. In order to investigate the hydrophobic interior of SCPNs, we trace the emission spectrum of a pyrene probe. We highlight that these SCPNs exhibit host–guest properties to stably encapsulate hydrophobic guest molecules and release them in response to a redox stimulus.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Responsive single-chain polymer nanoparticles with host–guest features

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