Photocrosslinking the polystyrene core of block-copolymer nanoparticles

文献情報

出版日 2010-12-20

DOI 10.1039/C0PY00350F

インパクトファクター 5.582

著者

Siyan Zhang, Douglas H. Adamson, Robert K. Prud'homme

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要旨

The crosslinking of the core of nanoparticles composed of polystyrene-block-poly(ethylene oxide) copolymers can be achieved through encapsulation of a small molecule aryl diazide, 4,4′-diazidobiphenyl, and subsequent photolysis. The core-crosslinked nanoparticles exhibited high stability under thermal challenge. These stabilized nanoparticles have potential to serve as a nanobead for the polymerase chain reaction (PCR). We also demonstrated that this crosslinker can endow thin films of polystyrene with solvent resistance. NMR studies on these films provided evidence that crosslinking was occurring viainsertion of the nitrene formed by photolysis of the azide into the methylene or methine groups in the backbone of polystyrene.

掲載誌

Polymer Chemistry

CiteScore: 8.6

自己引用率: 7.3%

年間論文数: 457

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Photocrosslinking the polystyrene core of block-copolymer nanoparticles

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