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Issue 33, 2015
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Photodimerization as an alternative to photocrosslinking of nanoparticles: proof of concept with amphiphilic linear polyoxazoline bearing coumarin unit

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Abstract

Photosensitive amphiphilic linear polyoxazolines (CoumC11–POxn) bearing alkyl chain decorated by a UV-active coumarin end group have been synthesized by cationic ring-opening polymerization (CROP). Using DLS and DOSY NMR experiments, their self-assemblies in water were compared with those of homologous photo-unreactive amphiphilic polyoxazolines (Cm–POxn). In both cases, spherical nanoparticles with DH-values around 10 nm were observed. The CoumC11–POxn nanoparticles were illuminated upon λ = 300 nm inducing the photo-dimerization of the coumarin units located in the inner compartment of the nanoparticles. Finally, the pros and the cons of the photo-dimerization of linear copolymers related to the photo-crosslinking of graft copolymers were discussed.

Graphical abstract: Photodimerization as an alternative to photocrosslinking of nanoparticles: proof of concept with amphiphilic linear polyoxazoline bearing coumarin unit

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Supplementary files

Article information


Submitted
02 Jun 2015
Accepted
30 Jun 2015
First published
03 Jul 2015

Polym. Chem., 2015,6, 6029-6039
Article type
Paper
Author version available

Photodimerization as an alternative to photocrosslinking of nanoparticles: proof of concept with amphiphilic linear polyoxazoline bearing coumarin unit

L. Korchia, C. Bouilhac, V. Lapinte, C. Travelet, R. Borsali and J. Robin, Polym. Chem., 2015, 6, 6029
DOI: 10.1039/C5PY00834D

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