New Triphenylamine-Based Oligomeric Schiff Bases Containing Tetraphenylsilane Moieties in the Backbone
Nuevas bases oligoméricas de Schiff a base de trifenilamina que contienen fracciones de tetrafenilsilano en la columna vertebral
dc.contributor | patosobarzzo@aol.com; afgonzalez1@uc.cl; edschott@uc.cl; ltagle@uc.cl; atundido@uc.cl; carmenmabel@gmail.com; Ignacio.jessop@gmail.com; cterraza@uc.cl | |
dc.contributor | Fondo Nacional de Desarrollo Cientifico y Tecnologico, FONDECYT [1150157]; CONICYT-PCHA Doctorado Nacional [2015-21151317] | |
dc.contributor | Schott, Eduardo E https://orcid.org/0000-0002-2546-304X | |
dc.contributor | Terraza, Claudio https://orcid.org/0000-0002-6326-8771 | |
dc.contributor | Sobarzo, Patricio https://orcid.org/0000-0003-3684-7636 | |
dc.contributor | Tundidor, Alain https://orcid.org/0000-0001-8653-8722 | |
dc.creator | Sobarzo, Patricio A. | |
dc.creator | Gonzalez, Alexis F. | |
dc.creator | Schott, Eduardo | |
dc.creator | Tagle, Luis H. | |
dc.creator | Tundidor-Camba, Alain | |
dc.creator | Gonzalez-Henriquez, Carmen | |
dc.creator | Jessop, Ignacio A. | |
dc.creator | Terraza, Claudio A. | |
dc.date | 2023-04-18T01:47:47Z | |
dc.date | 2023-04-18T01:47:47Z | |
dc.date | 2019 | |
dc.date.accessioned | 2023-09-27T20:20:30Z | |
dc.date.available | 2023-09-27T20:20:30Z | |
dc.identifier | https://repositorio.uta.cl/xmlui/handle/20.500.14396/2301 | |
dc.identifier | 2073-4360 | |
dc.identifier | 10.3390/polym11020216 | |
dc.identifier | HN6KX | |
dc.identifier | 30960202 | |
dc.identifier | WOS:000460296000030 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/8943570 | |
dc.description | Three new triphenylamine-based oligomeric Schiff bases (polySB1, polySB2 and polySB3) containing tetraphenylsilane core (TPS-core) in the main chain were obtained from TPS-core-based diamines and bis(4-formylphenyl)phenylamine by a high-temperature polycondensation reaction. These new oligomers were structurally characterized by FT-IR, NMR and elemental analysis. All polySBs were highly soluble in common organic solvents, such as chloroform, tetrahydrofuran and chlorobenzene. Samples showed moderate molecular average molecular weight (Mw) and a high thermal stability above 410 degrees C. Likewise, polySBs showed absorption near 400 nm in the UV-vis range and photoluminescence. The HOMO levels and band-gap values were found in the ranges of -6.06 to -6.18 eV and 2.65-2.72 eV, respectively. The lowest band-gap value was observed for polySB2, which could be attributed to a more effective pi-conjugation across the main chain. The results suggest that silicon-containing polySBs are promising wide-band-gap semiconductors materials for optoelectronic applications. | |
dc.description | Se obtuvieron tres nuevas bases oligoméricas de Schiff basadas en trifenilamina (polySB1, polySB2 y polySB3) que contienen un núcleo de tetrafenilsilano (TPS-core) en la cadena principal a partir de diaminas basadas en TPS-core y bis (4-formilfenil) fenilamina mediante una policondensación a alta temperatura. reacción. Estos nuevos oligómeros se caracterizaron estructuralmente mediante FT-IR, RMN y análisis elemental. Todos los poliSB eran altamente solubles en solventes orgánicos comunes, como cloroformo, tetrahidrofurano y clorobenceno. Las muestras mostraron un peso molecular promedio (Mw) moderado y una alta estabilidad térmica por encima de los 410 grados C. Asimismo, los poliSB mostraron una absorción cercana a los 400 nm en el rango UV-vis y fotoluminiscencia. Los niveles de HOMO y los valores de banda prohibida se encontraron en los rangos de -6,06 a -6,18 eV y 2,65 a 2,72 eV, respectivamente. El valor de banda prohibida más bajo se observó para polySB2, lo que podría atribuirse a una conjugación pi más eficaz en la cadena principal. Los resultados sugieren que los polySB que contienen silicio son materiales semiconductores de banda ancha prometedores para aplicaciones optoelectrónicas. | |
dc.format | application/pdf | |
dc.format | 15 páginas | |
dc.language | English | |
dc.publisher | MDPI | |
dc.relation | Polymers, vol.11 no.2 (2019) | |
dc.relation | https://doi.org/10.3390/polym11020216 | |
dc.rights | Green Published, gold, Green Submitted | |
dc.rights | Acceso abierto | |
dc.source | Polymers | |
dc.subject | Tetraphenylsilane | |
dc.subject | Triphenylamine | |
dc.subject | Oligomeric Schiff Bases | |
dc.subject | Optoelectronic Applications | |
dc.subject | Highly Efficient | |
dc.subject | Electrochromic Properties | |
dc.subject | Aromatic Polyazomethines | |
dc.subject | Host Materials | |
dc.subject | Polymers | |
dc.subject | Blue | |
dc.subject | Green | |
dc.subject | Performance | |
dc.subject | Derivatives | |
dc.subject | Carbazole | |
dc.subject | Tetrafenilsilano | |
dc.subject | Trifenilamina | |
dc.subject | Bases de Schiff Oligoméricas | |
dc.subject | Aplicaciones Optoelectrónicas | |
dc.subject | Altamente Eficaz | |
dc.subject | Propiedades Electrocrómicas | |
dc.subject | Poliazometinas Aromáticas | |
dc.subject | Materiales Anfitriones | |
dc.subject | Polímeros | |
dc.subject | Azul | |
dc.subject | Verde | |
dc.subject | Rendimiento | |
dc.subject | Derivados | |
dc.subject | Carbazol | |
dc.title | New Triphenylamine-Based Oligomeric Schiff Bases Containing Tetraphenylsilane Moieties in the Backbone | |
dc.title | Nuevas bases oligoméricas de Schiff a base de trifenilamina que contienen fracciones de tetrafenilsilano en la columna vertebral | |
dc.type | Artículo de revista |