Open AccessPhotodimerization as an alternative to photocrosslinking of nanoparticles: proof of concept with amphiphilic linear polyoxazoline bearing coumarin unit
Author(s) -
Laetitia Korchia,
Cécile Bouilhac,
Vincent Lapinte,
Christophe Travelet,
Rédouane Borsali,
JeanJacques Robin
Publication year - 2015
Publication title -
polymer chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 117
eISSN - 1759-9962
pISSN - 1759-9954
DOI - 10.1039/c5py00834d
Subject(s) - coumarin , amphiphile , nanoparticle , bearing (navigation) , proof of concept , polymer science , chemistry , materials science , polymer chemistry , nanotechnology , organic chemistry , copolymer , computer science , polymer , artificial intelligence , operating system
International audiencePhotosensitive amphiphilic linear polyoxazolines (CoumC 11-POx n) 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-unreactiveamphiphilic polyoxazolines (C m-POx n). In both cases, spherical nanoparticles with D H-values around 10 nm were observed. The CoumC 11-POx n nanoparticles were illuminated upon 300 nm inducing the photo-dimerization of the coumarin units located in theinnercompartment of the nanoparticles. Finally, the pros and the cons of the photo-dimerization of linear copolymersrelated to the photo-crosslinking of graft copolymerswere discussed
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