Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Alfonso González Ortega"'
Autor:
Laura Matesanz-Niño, David Cuellas, Carla Aguilar-Lugo, Laura Palacio, Alfonso González-Ortega, José G. de la Campa, Cristina Álvarez, Ángel E. Lozano
Publikováno v:
Polymers, Vol 15, Iss 6, p 1333 (2023)
An optimized synthesis of the monomer 2,2′3,3′-biphenyltetracarboxylic dianhydride, iBPDA, was performed to obtain high molecular weight polymers. This monomer has a contorted structure that produces a non-linear shape, hindering the packing of t
Externí odkaz:
https://doaj.org/article/d353daa2f2024aafb3bc249a4a66ea47
Autor:
Cenit Soto, Javier Carmona, Benny D. Freeman, Laura Palacio, Alfonso González-Ortega, Pedro Prádanos, Ángel E. Lozano, Antonio Hernandez
Publikováno v:
Polymers, Vol 14, Iss 15, p 3176 (2022)
A set of thermally rearranged mixed matrix membranes (TR-MMMs) was manufactured and tested for gas separation. These membranes were obtained through the thermal treatment of a precursor MMM with a microporous polymer network and an o-hydroxypolyamide
Externí odkaz:
https://doaj.org/article/09ab2afb94134b35af5f27ecd756db33
Autor:
Cenit Soto, Edwin S. Torres-Cuevas, Alfonso González-Ortega, Laura Palacio, Pedro Prádanos, Benny D. Freeman, Ángel E. Lozano, Antonio Hernandez
Publikováno v:
Polymers, Vol 13, Iss 24, p 4343 (2021)
Mixed matrix membranes (MMMs) consisting of a blend of a hydroxypolyamide (HPA) matrix and variable loads of a porous polymer network (PPN) were thermally treated to induce the transformation of HPA to polybenzoxazole (β-TR-PBO). Here, the HPA matri
Externí odkaz:
https://doaj.org/article/4f2b7ad383cc4ef38a11463843ea0d02
Autor:
Cenit Soto, Edwin S. Torres-Cuevas, Alfonso González-Ortega, Laura Palacio, Ángel E. Lozano, Benny D. Freeman, Pedro Prádanos, Antonio Hernández
Publikováno v:
Polymers, Vol 13, Iss 6, p 931 (2021)
A hydroxypolyamide (HPA) manufactured from 2,2-bis(3-amino-4-hydroxy phenyl)-hexafluoropropane (APAF) diamine and 5′-terbutyl-m-terphenyl-4,4′′-dicarboxylic acid chloride (tBTpCl), and a copolyimide produced by stochiometric copolymerization of
Externí odkaz:
https://doaj.org/article/20748b4ee3e8429e83620ad09b3f29bc
Autor:
Laura Matesanz-Niño, Noelia Esteban, Matthew T. Webb, Aránzazu Martínez-Gómez, Fabián Suárez-García, Alfonso González-Ortega, Jesús A. Miguel, Laura Palacio, Michele Galizia, Cristina Álvarez, Ángel E. Lozano
Producción Científica
A set of linear polymers were synthesized utilizing an electrophilic aromatic substitution reaction (SEAr) between biphenyl and ketone containing electron-withdrawing groups (isatin, IS; N-methylisatin, MeIS; and 4,5-diaz
A set of linear polymers were synthesized utilizing an electrophilic aromatic substitution reaction (SEAr) between biphenyl and ketone containing electron-withdrawing groups (isatin, IS; N-methylisatin, MeIS; and 4,5-diaz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d0679661a59727b87e84ace4497567b
https://doi.org/10.1016/j.polymer.2022.125647
https://doi.org/10.1016/j.polymer.2022.125647
Autor:
Laura Palacio, Pedro Prádanos, Benny D. Freeman, Cenit Soto, Edwin S. Torres-Cuevas, Antonio Hernández, Angel E. Lozano, Alfonso González-Ortega
Publikováno v:
Polymers
Volume 13
Issue 6
UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname
Polymers, Vol 13, Iss 931, p 931 (2021)
Digital.CSIC. Repositorio Institucional del CSIC
Volume 13
Issue 6
UVaDOC. Repositorio Documental de la Universidad de Valladolid
instname
Polymers, Vol 13, Iss 931, p 931 (2021)
Digital.CSIC. Repositorio Institucional del CSIC
Producción Científica
A hydroxypolyamide (HPA) manufactured from 2,2-bis(3-amino-4-hydroxy phenyl)-hexafluoropropane (APAF) diamine and 5′-terbutyl-m-terphenyl-4,4′′-dicarboxylic acid chloride (tBTpCl), and a copolyimide produced by stoc
A hydroxypolyamide (HPA) manufactured from 2,2-bis(3-amino-4-hydroxy phenyl)-hexafluoropropane (APAF) diamine and 5′-terbutyl-m-terphenyl-4,4′′-dicarboxylic acid chloride (tBTpCl), and a copolyimide produced by stoc
Publikováno v:
Organic Letters. 18:1972-1975
The synthesis of seven-membered nitrogen heterocycles by silyl-aza-Prins cyclization is described. The process provides trans-azepanes in high yields and good to excellent diastereoselectivities. Moreover, the reaction outcome is dependent on the Lew
Autor:
Asunción Barbero, Alberto Diez-Varga, Patricia Val, Héctor Barbero, Francisco J. Pulido, Alfonso González-Ortega, Joaquín R. Morán
Publikováno v:
RSC Advances. 5:49541-49551
Vinylsilyl alcohols undergo intramolecular cyclization to provide di-, tri- or tetrasubstituted-tetrahydrofurans. The influence of the number and position of substituents in the stereoselectivity of the process has been studied. Moreover, DFT calcula
Autor:
Alberto Diez-Varga, Francisco J. Pulido, Asunción Barbero, Alfonso González-Ortega, Héctor Barbero
Publikováno v:
Chemistry – A European Journal. 20:14112-14119
Two different mechanism pathways are observed for the reaction of allylsilyl alcohols 1 and aldehydes in the presence of trimethylsilyl trifluoromethanesulfonate (TMSOTf). In the case of allylsilyl alcohols without allylic substituents, the reaction
Publikováno v:
ChemInform. 47
The synthesis of seven-membered nitrogen heterocycles by silyl-aza-Prins cyclization is described. The process provides trans-azepanes in high yields and good to excellent diastereoselectivities. Moreover, the reaction outcome is dependent on the Lew