Browsing by Author "Tundidor Camba, Alain"
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- Item2D Autocorrelation modeling of the activity of trihalobenzocycloheptapyridine analogues as farnesyl protein transferase inhibitors(2005) Fernandez, M.; Tundidor Camba, Alain; Caballero, J.
- Item3D-QSAR Modeling of Non-peptide Antagonists for the Human Luteinizing Hormone-releasing Hormone Receptor(2013) Tundidor Camba, Alain; Caballero, Julio; Coll Herrera, Deysma
- ItemAromatic Polyimides Containing Cyclopropylamide Fragment as Pendant Group. A Study of the Balance Between Solubility and Structural Rigidity(2017) Tundidor Camba, Alain; Terraza Inostroza, Claudio; Tagle Domínguez, Luis Hernán; Coll Herrera, Deysma; Ortiz, Pablo
- ItemDiphenylsilane-containing linear and rigid whole aromatic poly(azomethine)s. Structural and physical characterization(2018) Tundidor Camba, Alain; González Enríquez, Carmen; Sarabia Vallejos, Mauricio; Tagle Domínguez, Luis Hernán; Sobarzo Aucal, Patricio Antonio; Gonzalez, A.; Hauyón Sepúlveda, René Alejandro; Mariman, A. P.; Terraza Inostroza, Claudio; Tundidor Camba, Alain; González Enríquez, Carmen; Sarabia Vallejos, Mauricio; Tagle Domínguez, Luis Hernán; Sobarzo Aucal, Patricio Antonio; Gonzalez, A.; Hauyón Sepúlveda, René Alejandro; Mariman, A. P.; Terraza Inostroza, Claudio
- ItemFlexible oligomeric silicon-containing poly(ether-azomethine)s obtained from epoxide derivatives. Synthesis and characterization(2019) Tundidor Camba, Alain; Araya, Nélida; González Enríquez, Carmen; Tagle Domínguez, Luis Hernán; Hauyón Sepúlveda, René Alejandro; Sobarzo Aucal, Patricio Antonio; Rodríguez González, Fidel E.; Jessop Rivera, Ignacio; Recabarren Gajardo, Gonzalo; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Araya, Nélida; González Enríquez, Carmen; Tagle Domínguez, Luis Hernán; Hauyón Sepúlveda, René Alejandro; Sobarzo Aucal, Patricio Antonio; Rodríguez González, Fidel E.; Jessop Rivera, Ignacio; Recabarren Gajardo, Gonzalo; Terraza Inostroza, Claudio
- ItemIn-Situ Preparation of CdTe Quantum Dots Capped with beta-Cyclodextrin-Epichlorohydrin Polymer : Polymer Influence on the Nanocrystal's Optical Properties(2018) Martin-Trasanco, Rudy; Esparza-Ponce, Hilda E.; Ortiz Rodríguez, Pedro David; Oyarzun, Diego P.; Zuniga, Cesar; Montero-Cabrera, Maria E.; Tundidor Camba, Alain; Pizarro, Guadalupe del C.; Arratia-Perez, Ramiro
- ItemLinear and nonlinear QSAR study of N-hydroxy-2-[(phenylsulfonyl)amino]acetamide derivatives as matrix metalloproteinase inhibitors(2006) Fernandez, Michael; Caballero, Julio; Tundidor Camba, Alain
- ItemNew cardo silylated poly(azomethine)s containing 9,9 '-diphenylfluorene units as materials with bronsted acid-dependent fluorescence(2020) Hauyón Sepúlveda, René Alejandro; Garrido Gatica, Gabriela Lurdes; Sobarzo Aucal, Patricio Antonio; González Enríquez, Carmen; Tagle Domínguez, Luis Hernán; Rodríguez González, Fidel E.; Jessop Rivera, Ignacio; Recabarren Gajardo, Gonzalo; Tundidor Camba, Alain; Terraza Inostroza, Claudio
- ItemNew Light-Green Thermally Activated Delayed Fluorescence Polymer Based on Dimethylacridine-Triphenyltriazine Light-Emitting Unit and Tetraphenylsilane Moiety as Non-Conjugated Backbone(MDPI, 2023) Hauyon Sepúlveda, Rene Alejandro; Sobarzo Aucal, Patricio Antonio; Medina Martínez, Jean André; Garcia, Luis; Tundidor Camba, Alain; Terraza Inostroza, Claudio Alberto; Fuentealba Patino, Denis Alberto; Pizarro, Nancy; Ortega Alfaro, María C.; Ugalde Saldívar, Víctor M.; Jessop Rivera, Ignacio Andrés; González Henríquez, CarmenIn the search for solution-processable TADF materials as a light emitting layer for OLED devices, polymers have attracted considerable attention due to their better thermal and morphological properties in the film state with respect to small molecules. In this work, a new polymer (p-TPS-DMAC-TRZ) with thermally activated delayed fluorescence (TADF) light-emitting characteristics was prepared from a conjugation-break unit (TPS) and a well-known TADF core (DAMC-TRZ). This material was designed to preserve the photophysical properties of DAMC-TRZ, while improving other properties, such as thermal stability, promoted by its polymerization with a TPS core. Along with excellent solubility in common organic solvents such as toluene, chloroform and THF, the polymer (Mn = 9500; Mw = 15200) showed high thermal stability (TDT5% = 481 °C), and a Tg value of 265 °C, parameters higher than the reference small molecule DMAC-TRZ (TDT5% = 305 °C; Tg = 91 °C). The photoluminescence maximum of the polymer was centered at 508 nm in the solid state, showing a low redshift compared to DMAC-TRZ (500 nm), while also showing a redshift in solution with solvents of increasing polarity. Time-resolved photoluminescence of p-TPS-DMAC-TRZ at 298 K, showed considerable delayed emission in solid state, with two relatively long lifetimes, 0.290 s (0.14) and 2.06 s (0.50), and a short lifetime of 23.6 ns, while at 77 K, the delayed emission was considerably quenched, and two lifetimes in total were observed, 24.6 ns (0.80) and 180 ns (0.20), which was expected from the slower RISC process at lower temperatures, decreasing the efficiency of the delayed emission and demonstrating that p-TPS-DMAC-TRZ has a TADF emission. This is in agreement with room temperature TRPL measurements in solution, where a decrease in both lifetime and delayed contribution to total photoluminescence was observed when oxygen was present. The PLQY of the mCP blend films with 1% p-TPS-DMAC-DMAC-TRZ as a dopant was determined to be equal to 0.62, while in the pure film, it was equal to 0.29, which is lower than that observed for DMAC-TRZ (0.81). Cyclic voltammetry experiments showed similarities between p-TPS-DMAC-TRZ and DAMC-TRZ with HOMO and LUMO energies of ?5.14 eV and ?2.76 eV, respectively, establishing an electrochemical bandgap value of 2.38 eV. The thin film morphology of p-TPS-DMAC-TRZ and DMAC-TRZ was compared by AFM and FE-SEM, and the results showed that p-TPS-DMAC-TRZ has a smoother surface with fewer defects, such as aggregations. These results show that the design strategy succeeded in improving the thermal and morphological properties in the polymeric material compared to the reference small molecule, while the photophysical properties were mostly maintained, except for the PLQY determined in the pure films. Still, these results show that p-TPS-DMAC-TRZ is a good candidate for use as a light-emitting layer in OLED devices, especially when used as a host-guest mixture in suitable materials such as mCP.
- ItemNew oligomeric poly(ether-imide)s containing diphenylsilane and dibenzofuran moieties. Synthesis and characterization(2018) Tundidor Camba, Alain; Tagle Domínguez, Luis Hernán; González Enríquez, Carmen; Coll Herrera, Deysma; Hauyón Sepúlveda, René Alejandro; Sobarzo Aucal, Patricio Antonio; Jessop Rivera, Ignacio; Terraza Inostroza, Claudio
- ItemNew Poly(imide)s Bearing Alkyl Side-Chains : A Study on the Impact of Size and Shape of Lateral Groups on Thermal, Mechanical, and Gas Transport Properties(2020) Rodríguez González, Fidel E.; Pérez, G.; Niebla Morejón, Vladimir; Jessop Rivera, Ignacio; Martín Trasanco, R.; Coll Herrera, Deysma; Aguilar Vega, M.; Tagle Domínguez, Luis Hernán; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Ortiz, P.
- ItemNew thiophene-based poly(azomethine)s bearing tetraphenylsilane moieties along their backbone. Optical, electronic, thermal properties and theoretical calculations(2020) Sobarzo Aucal, Patricio Antonio; Jessop Rivera, Ignacio; Mariman, A. P.; Gonzalez, A. F.; Saldias, C.; Schott Verdugo, Eduardo Enrique; Zarate, X.; Hauyón Sepúlveda, René Alejandro; Recabarren Gajardo, Gonzalo; Terraza Inostroza, Claudio; González Enríquez, Carmen; Tundidor Camba, Alain
- ItemNew triphenylamine-based oligomeric schiff bases containing tetraphenylsilane moieties in the backbone(2019) Sobarzo Aucal, Patricio Antonio; Gonzalez, A.F.; Schott Verdugo, Eduardo Enrique; Tagle Domínguez, Luis Hernán; Tundidor Camba, Alain; González Enríquez, Carmen; Jessop Rivera, Ignacio; Terraza Inostroza, Claudio
- ItemNovel aromatic polyimides derived from 2,8-di(3-aminophenyl) dibenzofuran. Synthesis, characterization and evaluation of properties(2015) Tundidor Camba, Alain; Terraza Inostroza, Claudio; Tagle Domínguez, Luis Hernán; Coll Herrera, Deysma; Ortiz Álvarez, Pablo Andrés; De Abajo, J.; Maya, E.
- ItemOligomeric poly(ether-imide)s bearing ortho trifluoromethyl groups: solubility, thermal studies, and optical properties(2018) Jessop, L.; Tagle Domínguez, Luis Hernán; Coll Herrera, Deysma; Ortiz Álvarez, Pablo Andrés; Pérez Quintana, Germán Miguel; Terraza Inostroza, Claudio; Tundidor Camba, Alain
- ItemOligomeric silicon-containing poly(imide-amides) derivaded from diacids with 1,8-naphthalimidyl and aminoi acids side groups. Synthesis and characterization(2014) Tagle Domínguez, Luis Hernán; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Lara Faure, Francisco Antonio
- ItemPANI branches onto donor-acceptor copolymers : synthesis, characterization and electroluminescent properties of new 2D-materials(2018) Jessop Rivera, Ignacio; Díaz, Fernando R.; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Leiva Campusano, Ángel; Cattin, L.; Bernede, J.
- ItemPoly(amide)s obtained from 4-(4-((4-(4-aminophenoxy)phenyl)diphenyl-silyl)phenoxy)benzenamine and dicarboxylic acids containing diphenylsilarylene units. Synthesis and characterization(2012) Terraza Inostroza, Claudio; Tagle Domínguez, Luis Hernán; Tundidor Camba, Alain; González Enríquez, Carmen; Ortiz Álvarez, Pablo Andrés; Coll Herrera, Deysma
- ItemPoly(amide-imide-esters) derived from asymmetric diacids and diphenols containing silicon or carbon as central atom. Synthesis, characterization and thermal studies(2016) Tagle Domínguez, Luis Hernán; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Ortiz, P. A.
- ItemPoly(esters) Containing Two Silicon Atoms and Aminoacidic Residues in the Main Chain: Synthesis, Characterization and Thermal Studies(2016) Tagle Domínguez, Luis Hernán; Terraza Inostroza, Claudio; Tundidor Camba, Alain; Ortiz, P. A.
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