130641 20240130150401.0 doi 10.1021/acs.macromol.6b01112 sideral 97007 ART-2016-97007 eng Oriol Langa, Luis Teodoro Universidad de Zaragoza (orcid)0000-0002-0922-5615 Light-Responsive Self-Assembled Materials by Supramolecular Post-Functionalization via Hydrogen Bonding of Amphiphilic Block Copolymers 2016 A new class of light-responsive supramolecular amphiphilic block copolymers (BCs) based on the association through multiple H-bonding between 4-isobutyloxyazobenzene motifs and 2, 6-diacylaminepyridine units is reported. Block copolymers containing 2, 6-diacylaminopyridine side units, as hydrophobic block, and poly(ethylene glycol), as a hydrophilic segment, were functionalized with either a carboxylic acid azodendron, via double H-bonding, or a thymine azobenzene, via triple H-bonding. The structural and thermal characterization of these supramolecular azo-copolymers in bulk and solution is presented. The work emphasizes the self-assembly of these supramolecular polymers in water and the study of their UV-light responsive properties by UV-vis spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), and synchrotron small-angle X-ray (SAXS). The present noncovalent postpolymerization functionalization strategy has provided stable self-assemblies in water with light responsive properties that can be used to load and trigger the delivery of small fluorescent molecules. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/MAT2014-55205-P info:eu-repo/grantAgreement/ES/MINECO/MAT2014-59187-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.835 2016 POLYMER SCIENCE 5 / 85 = 0.059 2016 Q1 T1 2.564 2016 Inorganic Chemistry 2016 Q1 Polymers and Plastics 2016 Q1 Organic Chemistry 2016 Q1 Materials Chemistry 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Piñol, Milagros Universidad de Zaragoza (orcid)0000-0001-5556-2172 Nogales, A Concellón, A. Universidad de Zaragoza (orcid)0000-0002-8932-9085 Blasco, E. Martínez-Felipe, A. Martínez, J. C. Šics, I. Ezquerra, T. A. 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 49, 20 (2016), 7825-7836 Macromolecules MACROMOLECULES 0024-9297 2564881 http://zaguan.unizar.es/record/130641/files/texto_completo.pdf Postprint 1126440 http://zaguan.unizar.es/record/130641/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130641 articulos driver 2024-01-30-14:04:26 ARTICLE