Results 11 to 20 of about 5,471 (109)

Substrate-Selective Temperature-Controlled Synthesis of Thiophene Derivatives at Interfaces. [PDF]

Angew Chem Int Ed Engl
The deposition of a dithiophene derivative on Ag(111) at room temperature followed by annealing gives rise to molecular wires, whereas the adsorption of the same precursor on a hot substrate affords the formation of benzotrithiophene species. Abstract The temperature‐controlled transformation of organic molecules at interfaces is an incipient yet ...
Pérez-Elvira E, Barragán A, Vicent DJ, Jóver Ó, Gallardo A, García-Frutos A, Černa L, Lauwaet K, Santos J, Perles J, Gallego JM, Miranda R, Urgel JI, Björk J, Di Giovannantonio M, Martín N, Écija D.   +16 more
europepmc   +3 more sources

Unconventional Fast Room Temperature Synthesis of Covalent Organic Framework Single Crystals Unveiling Precise Structural Insights. [PDF]

Angew Chem Int Ed Engl
This work presents a fast, room‐temperature synthesis of single‐crystalline, highly fluorinated 2D covalent organic frameworks (COFs). We achieved the growth of 3‐micron‐long COF rods, enabling the precise study of their mechanical properties and aggregation states.
Jiménez-Duro M, Martínez-Fernández M, Cabrera-Trujillo JJ, Osuna E, Humanes MF, Gómez-Navarro C, Gómez-Herrero J, Zamora F, Segura JL.   +8 more
europepmc   +3 more sources

Poly(Ionic) Liquid-Enhanced Ion Dynamics in Cellulose-Derived Gel Polymer Electrolytes. [PDF]

ChemSusChem
Advancing Energy Storage: Gel Polymer Electrolytes with Promising Potential Gel polymer electrolytes (GPEs) incorporating methyl cellulose and a range of ionic/polymeric achieved Li+ transference numbers comparable to traditional liquid electrolytes.
Paiva TG, Klem M, Silvestre SL, Coelho J, Alves N, Fortunato E, Cabrita EJ, Corvo MC.   +7 more
europepmc   +2 more sources

Tunable Oxygen Connectivity in Carbaporphyrinoid Polymers on Metal Surfaces

Angewandte Chemie, EarlyView.
Hydroxyl‐functionalized dicarbaporphyrinoid polymers synthesized on Au(111) enable tunable oxygen‐mediated connectivity under UHV conditions. Thermal activation yields one‐dimensional hydroxyl‐terminated polymers that can selectively evolve into either covalently‐linked dibenzo‐p‐dioxane architectures through intermolecular C–O–C coupling or two‐fold ...
Alberto Martínez‐Bajo, Maxence Urbani, Ana Barragán, Óscar Jover, Elena Pérez‐Elvira, Ilaria Tomei, Claudio Goletti, Alejandro Jiménez‐Martín, Aurelio Gallardo, Koen Lauwaet, David Écija, Diego Soler‐Polo, Marco Di Giovannantonio, Tomás Torres, José I. Urgel   +14 more
wiley   +2 more sources

Degradable Ureido-Polycarbonate Block Copolymers with a Complex UCST Thermoresponse. [PDF]

Macromol Rapid Commun
Amphiphilic block copolymers with degradable ureido‐functionalized polycarbonate segments self‐assemble into spherical micelles in water, exhibiting an intriguing upper critical solution temperature (UCST) behavior. Upon heating, these micelles swell, collapse, and reorganize into highly hydrated condensates that mimic polymeric nanogels.
Martin-Martin J, Abad M, Lopez de Pariza X, Ezquerra TA, Nogales A, Sardon H, Sebastián V, Oriol L, Piñol M.   +8 more
europepmc   +2 more sources

Emissão de CO2 do solo pela aplicação de fertilizantes orgânicos e minerais

Agropecuária Catarinense, 2019
Resumo – A atividade suinícola tem grande importância no Brasil e, por isso, busca-se utilização adequada do dejeto líquido de suíno (DLS) em áreas agrícolas.
Augusto Friederichs, Walter Santos Borges Junior, Diego Fernando Roters, Álvaro Luiz Mafra   +3 more
doaj   +1 more source

Utilização de água residuária tratada na recuperação da fertilidade de solo degradado no semiárido paraibano

Revista Principia, 2020
O objetivo deste estudo foi avaliar o efeito da aplicação de água residuária tratada na recuperação dos teores de matéria orgânica e fósforo em um solo degradado na região semiárida. Foi realizado um experimento com irrigação de cinco espécies florestais
Emanoel Lima Martins, Vânia da Silva Fraga, Salomão de Sousa Medeiros   +2 more
doaj   +1 more source

Resposta fenológica do quiabo (Abelmoschus esculentus L., malvaceae) cultivado em vasos com diferentes doses de matéria orgânica

Diversitas Journal, 2022
O objetivo desse estudo foi acompanhar o desenvolvimento fenológico do quiabo (Abelmoschus esculentus L., malvaceae), da cultivar Santa Cruz 47, em vasos com diferentes fontes de matéria orgânica.
Micaelle Glícia, Rubens Pessoa, Daniel De Souza, Wesley De Oliveira Galdino, Dayane Dos Santos Silva, Jadielson Inácio de Sousa   +5 more
doaj   +1 more source

LITTER DEVOLUTION AND DECOMPOSITION IN A PERIODICALLY FLOODED FOREST IN RESTINGA DA MARAMBAIA, RIO DE JANEIRO

Ciência Florestal, 2012
http://dx.doi.org/10.5902/198050985079Restinga (sandbank) areas are fragile environments, which have been subjected to anthropogenic pressures since the country colonization.
Marcos Gervasio Pereira, Avelino Nogueira Silva, Ranieri Ribeiro Paula, Luiz Fernando Tavares Menezes   +3 more
doaj   +1 more source

Driving Multi‐Step Regioselectivity in On‐Surface Polymer Synthesis by Molecular Coverage

Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.
Regioselective polymerization of dicyclopentaanthracene on Au(111) can be controlled by tuning molecular coverage. Low coverage yields 1D polymers, medium coverage produces quasi‐1D staircase polymers, and higher coverage drives 2D porous networks.
Kalyan Biswas, Alba García‐Frutos, Berta Álvarez, Marco Lozano, Ana Barragán, Jesús Janeiro, Jesús Bello‐García, Diego Soler‐Polo, Koen Lauwaet, José M. Gallego, Dolores Pérez, Rodolfo Miranda, José I. Urgel, Pavel Jelínek, Diego Peña, David Écija   +15 more
wiley   +2 more sources