130653 20240130150402.0 doi 10.1021/acs.macromol.8b00067 sideral 105432 ART-2018-105432 eng Concellón, A. Universidad de Zaragoza (orcid)0000-0002-8932-9085 Size-Selective Adsorption in Nanoporous Polymers from Coumarin Photo-Cross-Linked Columnar Liquid Crystals 2018 We have prepared nanoporous polymers from columnar hexagonal hydrogen-bonded complexes, whose order is fixed by coumarin photoinduced [2 + 2] cycloaddition (photodimerization). Two different hydrogen-bonded complexes were used and consisted of a melamine (M) or tris(triazolyl)triazine (T) derivative acting as central templates and three peripheral carboxylic acids containing coumarin units. These coumarin units were employed for the cross-linking process by photodimerization in order to fix the LC arrangement. Template removal leads to the formation of self-standing nanoporous polymers keeping the columnar hexagonal order. Two nanoporous polymers with different pore diameters were obtained depending on size of the utilized template. These polymers with carboxylic acids at the pore surface demonstrate the ability to selectively adsorb certain molecules depending on their size. Moreover, after base treatment of the nanoporous polymers, they are able to adsorb cationic dyes over anionic and larger cations, demonstrating size- and charge-selective adsorption. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-70174 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.997 2018 POLYMER SCIENCE 5 / 85 = 0.059 2018 Q1 T1 2.243 2018 Inorganic Chemistry 2018 Q1 Polymers and Plastics 2018 Q1 Organic Chemistry 2018 Q1 Materials Chemistry 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Schenning, A.P.H.J. Romero, P. Universidad de Zaragoza (orcid)0000-0003-1378-0571 Marcos, M. Universidad de Zaragoza (orcid)0000-0001-7056-3181 Serrano, J.L. Universidad de Zaragoza (orcid)0000-0001-9866-6633 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 51, 6 (2018), 2349-2358 Macromolecules MACROMOLECULES 0024-9297 1106569 http://zaguan.unizar.es/record/130653/files/texto_completo.pdf Postprint 826580 http://zaguan.unizar.es/record/130653/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:130653 articulos driver 2024-01-30-14:05:20 ARTICLE