Results 71 to 80 of about 48,083 (252)

Curing Kinetics of Hybrid Networks Composed of Benzoxazine and Multifunctional Novolac Epoxy

International Journal of Polymer Science, 2015
A novel hybrid network composed of benzoxazines (BZ) and novolac epoxy resin (F-51) was prepared successfully. Thermal properties, curing kinetics, and decomposition process were studied using isothermal differential scanning calorimetry (DSC) and ...
Wu Ke, Wang Rumin, Zeng Jinfang
doaj   +1 more source

Physical-chemical characteristics determination of potato (Solanum phureja Juz. & Bukasov) starch

Acta Agronómica, 2017
The aim of this research was to evaluate the functional properties of the native potato (Solanum phureja Juz. & Bukasov) starch in the food and non-food industry for which a thermal analysis was conducted, including thermogravimetric (TGA) analysis ...
Julián David Velásquez Herrera, Juan Carlos Lucas Aguirre, Victor Dumar Quintero Castaño   +2 more
doaj   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Styrene–Divinylbenzene Copolymers Functionalized with Amino Acid Groups: Synthesis and Physicochemical Characterization

Chemistry Proceedings
This work investigates the physicochemical characterization of two poly(styrene-co-divinylbenzene) copolymer supports, containing 6.7% and 15% divinylbenzene, functionalized with glycine.
Adriana Popa, Aurelia Visa, Laura Cocheci, Lavinia Lupa, Milica Țară-Lungă Mihali, Ecaterina Stela Dragan   +5 more
doaj   +1 more source

Investigating the impact of process parameters on waste tire pyrolysis and characterizing the resultant chars and oils [PDF]

International Journal of Human Capital in Urban Management
BACKGROUND AND OBJECTIVES: The escalating global population, coupled with increased transportation needs and car production, has led to a surge in waste tire generation, reaching billions annually.
A. Pazoki, R. Ghasemzadeh, M. Barikani, M. Pazoki   +3 more
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Stepwise Multi-Temperature Thermogravimetric Analysis (SMT-TGA) for Rapid Alloy Development

High Temperature Corrosion of Materials
Abstract A stepwise multi-temperature thermogravimetric analysis (SMT-TGA) method is a rapid and time- and material-efficient measurement procedure for oxidation kinetics over a wide range of temperatures. It is suitable for alloy design and material selection procedures.
Monceau, Daniel, Enjalbert, Hugo, Desgranges, Clara, Sanviemvongsak, Tom, Casadebaigt, Antoine, Perez, Thomas   +5 more
openaire   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Thermal degradation behaviour of some polydithiooxamide metal complexes

Eclética Química, 2018
The thermal decomposition behavior of the Fe(II), Co(II), Ni(II) and Zn(II) complexes of polydithiooxamide has been investigated by thermogravimetric analysis (TGA) at a heating rate of 20°C min -1 under nitrogen.
Hussein Al-Maydama, Ali El-Shekeil, Maarib A Khalid, Ashour Al-Karbouly   +3 more
doaj   +1 more source