000149755 001__ 149755 000149755 005__ 20251017144548.0 000149755 0247_ $$2doi$$a10.1016/j.eurpolymj.2011.11.018 000149755 0248_ $$2sideral$$a76105 000149755 037__ $$aART-2012-76105 000149755 041__ $$aeng 000149755 100__ $$0(orcid)0000-0002-5380-6863$$aDel Barrio, J. 000149755 245__ $$aThermal and light control of the chiral order of azopolymers 000149755 260__ $$c2012 000149755 5060_ $$aAccess copy available to the general public$$fUnrestricted 000149755 5203_ $$aThe control of the chiroptical properties of two azopolymers, which contain chiral terminal alkyl chains, by means of thermal and light irradiation processes has been studied. Both UV–vis and CD spectra of films and dichloromethane (DCM)/hexane solutions of the polymers have been registered and analyzed before and after different irradiation conditions: 488 nm circularly polarized light (CPL) and 365 nm unpolarized light. The chiroptical properties of the polymer containing chiral 1-methylheptyloxy terminal chains depended on the thermal history of the sample. As a result, the photocontrol of the chiral response in the bulk material by CPL irradiation has been evaluated on samples cooled from the isotropic state to room temperature at different rates. The chiroptical properties of these azopolymers show an intriguing combination of control from both the supramolecular and molecular chirality level as well as the thermal history of the sample and CPL irradiation. 000149755 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/MAT2008-06522-C02-01 000149755 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 000149755 590__ $$a2.562$$b2012 000149755 591__ $$aPOLYMER SCIENCE$$b17 / 82 = 0.207$$c2012$$dQ1$$eT1 000149755 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000149755 700__ $$0(orcid)0000-0003-1141-5933$$aTejedor, R.M.$$uUniversidad de Zaragoza 000149755 700__ $$0(orcid)0000-0002-0922-5615$$aOriol, L.$$uUniversidad de Zaragoza 000149755 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica 000149755 773__ $$g48, 2 (2012), 384-390$$pEur. Polym. J.$$tEuropean Polymer Journal$$x0014-3057 000149755 8564_ $$s254836$$uhttps://zaguan.unizar.es/record/149755/files/texto_completo.pdf$$yPostprint 000149755 8564_ $$s1164148$$uhttps://zaguan.unizar.es/record/149755/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000149755 909CO $$ooai:zaguan.unizar.es:149755$$particulos$$pdriver 000149755 951__ $$a2025-10-17-14:10:37 000149755 980__ $$aARTICLE