Show simple item record

dc.contributor.authorCobos Cabrera, Scarlet Katherine
dc.contributor.authorRodríguez Riego, Rafael
dc.contributor.authorDomarco Álvarez, Olaya
dc.contributor.authorFernández Rodríguez, Berta
dc.contributor.authorQuiñoá Cabana, Emilio
dc.contributor.authorRiguera Vega, Ricardo
dc.contributor.authorFreire Iribarne, Félix Manuel
dc.identifier.citationMacromolecules 2020, 53, 8, 3182–3193
dc.descriptionThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © 2020 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see:
dc.description.abstractPreparation of helical structures à la carte by monomer design of dynamic helical polymers such as poly(phenylacetylene)s (PPAs) is a difficult task due to conformational freedom of the polyene backbone. Herein, we study the monomer/helical polymer scaffold relationship by preparation of two novel phenylacetylene monomer series substituted at the phenyl ring in ortho-, meta-, or para-positions with the two enantiomers of either α-hydroxy-α-phenylacetic acid (1) or α-chloro-α-phenylacetic acid (S-2) linked through an anilide bond. These monomers were further polymerized, and their secondary structure and dynamic behavior were analyzed. Compiling information from these studies and the structural data for other PPAs found in the literature, we can state that anilide linkages in para-substituted polymers tend to generate compressed cis-cisoidal polyene structures, which can be transformed into more elongated cis-transoidal ones by external stimuli, while benzamide linkages in para-substituted polymers form mainly cis-transoidal scaffolds. The macromolecular structure of PPAs is also largely affected by the aromatic substitution pattern, adopting more stretched scaffolds once the pendant group is placed in meta- or ortho-positions, due to the steric hindrance generated by placing this group closer to the backbone
dc.description.sponsorshipFinancial support from MINECO (CTQ2015-70519-P), Xunta de Galicia (ED431C 2018/30; Centro singular de investigacioń de Galicia accreditation 2016-2019, ED431G/09, R.R. postdoctoral fellowship, and the European Regional Development Fund (ERDF) is gratefully acknowledged
dc.publisherAmerican Chemical Society
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTQ2015-70519-P/ES/ATERIALES QUIROPTICOS MODULABLES A PARTIR DE POLIMEROS INTELIGENTES
dc.rights© 2020 American Chemical Society. This article may be used for non-commercial purposes in accordance with ACS Terms and Conditions for Use of Self-Archived Versions
dc.subjectChemical structure
dc.titlePolymeric Helical Structures à la Carte by Rational Design of Monomers
dc.contributor.affiliationUniversidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Física
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Orgánica

Files in this item

Name: 2020_macromolecules_cobos_polymeric.pdf
Size: 1.767 Mb
Format: PDF


This item appears in the following Collection(s)

Show simple item record

Harvesters:Useful links:
Universidade de Santiago de Compostela | Teléfonos: +34 881 811 000 e +34 982 820 000 | Contact Us | Send Feedback