149799 20251017144645.0 doi 10.1002/pola.25929 sideral 76645 ART-2012-76645 eng Royes, J. Universidad de Zaragoza (orcid)0000-0002-1220-3708 Preparation of side-chain liquid crystalline Azopolymers by CuAAC postfunctionalization using bifunctional azides: Induction of chirality using circularly polarized light 2012 Access copy available to the general public Unrestricted Well-defined side-chain liquid crystal azopolymers have been synthesized by click chemistry of poly(propargyl methacrylate) with bifunctional liquid crystalline azides to produce materials with large degrees of functionalization. A polymeric scaffold having pendant alkyne groups was prepared by atom transfer radical polymerization (ATRP) and postfunctionalized by copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) using homo- and heterobifunctional azides. The azides are derivatives of 2,2-bis(hydroxymethyl)propanoic acid (bis-MPA) containing photoresponsive azobenzene and/or liquid crystalline biphenyl moieties. The approach is a convenient alternative to increase the density of functional units in side-chain polymers having moderate polymerization degrees and to modulate the properties of the final material. The article describes the synthesis, characterization, and liquid crystalline properties of the obtained polymers. The effect of the chemical structure and the possible cooperative effects between functional units in the photo-induction of chirality are also evaluated. A switchable photo-transference of chirality from the circularly polarized light (CPL) to material has been achieved. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.543 2012 POLYMER SCIENCE 12 / 82 = 0.146 2012 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Rebolé, J. Custardoy, L. (orcid)0000-0003-2379-8628 Gimeno, N. Oriol, L. Universidad de Zaragoza (orcid)0000-0002-0922-5615 Tejedor, R.M. Universidad de Zaragoza (orcid)0000-0003-1141-5933 Piñol, M. Universidad de Zaragoza (orcid)0000-0001-5556-2172 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 50, 8 (2012), 1579-1590 J. polym. sci., A, Polym. chem. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 0887-624X 984169 http://zaguan.unizar.es/record/149799/files/texto_completo.pdf Postprint 2210586 http://zaguan.unizar.es/record/149799/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:149799 articulos driver 2025-10-17-14:33:37 ARTICLE