000095944 001__ 95944
000095944 005__ 20210820090346.0
000095944 0247_ $$2doi$$a10.3390/polym11050885
000095944 0248_ $$2sideral$$a116331
000095944 037__ $$aART-2019-116331
000095944 041__ $$aeng
000095944 100__ $$0(orcid)0000-0002-1220-3708$$aRoyes, J.
000095944 245__ $$aStrategies to stabilize the photoinduced supramolecular chirality in azobenzene liquid crystalline polymers
000095944 260__ $$c2019
000095944 5060_ $$aAccess copy available to the general public$$fUnrestricted
000095944 5203_ $$aThis paper describes the synthesis, thermal characterization and optical properties of liquid crystalline homopolymers and block copolymers with a repeating unit consisting of two functional units, with at least one of them being an azobenzene. Films of these polymers have been irradiated with circularly polarized light at room temperature, evaluating the intensity of the photoinduced chiral signal and its temporal stability upon storage. The paper also explores two different strategies to restrict the relaxation of the photoinduced order. Firstly, block copolymers have been prepared to confine the photoaddressable segments into nanoscopic domains where relaxation should be restricted. Secondly, an alternative homopolymer has been synthesized where the repeating unit combines two chromophores that can be separately photoaddressed, an azobenzene unit to efficiently photoinduce chirality and a cinnamate to fix the chiral signal by photocrosslinking.
000095944 536__ $$9info:eu-repo/grantAgreement/ES/DGA/FEDER$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-84838-P
000095944 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000095944 590__ $$a3.426$$b2019
000095944 591__ $$aPOLYMER SCIENCE$$b16 / 89 = 0.18$$c2019$$dQ1$$eT1
000095944 592__ $$a0.704$$b2019
000095944 593__ $$aPolymers and Plastics$$c2019$$dQ1
000095944 593__ $$aChemistry (miscellaneous)$$c2019$$dQ2
000095944 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000095944 700__ $$0(orcid)0000-0002-0922-5615$$aOriol, L.$$uUniversidad de Zaragoza
000095944 700__ $$0(orcid)0000-0003-1141-5933$$aTejedor, R. M.$$uUniversidad de Zaragoza
000095944 700__ $$0(orcid)0000-0001-5556-2172$$aPiñol, M.$$uUniversidad de Zaragoza
000095944 7102_ $$12013$$2765$$aUniversidad de Zaragoza$$bDpto. Química Orgánica$$cÁrea Química Orgánica
000095944 773__ $$g11, 5 (2019), 885 [16 pp]$$pPolymers (Basel)$$tPOLYMERS$$x2073-4360
000095944 8564_ $$s736737$$uhttps://zaguan.unizar.es/record/95944/files/texto_completo.pdf$$yVersión publicada
000095944 8564_ $$s492542$$uhttps://zaguan.unizar.es/record/95944/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000095944 909CO $$ooai:zaguan.unizar.es:95944$$particulos$$pdriver
000095944 951__ $$a2021-08-20-08:38:16
000095944 980__ $$aARTICLE