Results 161 to 170 of about 241,538 (310)

FT-IR and 1H-NMR Investigations on the Correlation between Stretching Vibration and the Chemical Shift of Indoles

open access: yes, 1992
FT-IR and 1H-NMR Investigations on the Correlation between Stretching Vibration and the Chemical Shift of Indoles" con G. Tosi, L. Greci, P. Bruni, E. Giorgini ed E.
L. GRECI   +5 more
core  

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

open access: yesAdvanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska   +10 more
wiley   +1 more source

Study of dilution of Spin-On Glass by Fourier transform infrared spectroscopy

open access: yes, 2012
In this work, we study the dilution of Spin-On Glass (SOG) in order to obtain high quality SiO₂ films at 200 °C, with optical and electrical characteristics similar to those of the thermally grown SiO₂. For the production of SiO₂ films we used 2-propanol
MARIO MORENO MORENO   +3 more
core  

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

open access: yesAdvanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin   +5 more
wiley   +1 more source

NIR Calibrations for Soybean Seeds and Soy Food Composition Analysis: Total Carbohydrates, Oil, Proteins and Water Contents

open access: yes, 2011
Conventional chemical analysis techniques are expensive, time consuming, and often destructive. The non-invasive Near Infrared (NIR) technology was introduced over the last decades for wide-scale, inexpensive chemical analysis of food and crop seed ...
I. C. Baianu, Jun Guo
core  

2D MOF with Intrinsic Porosity for Colorimetric Volatile Organic Compounds (VOCs) Detection

open access: yesAdvanced Materials, EarlyView.
An uncommon 2D MOF with intrinsic in‐plane porosity that can be mechanically exfoliated undergoes a distinct and reversible colour change upon exposure to various volatile organic compounds. ABSTRACT In this work, we report an uncommon 2D metal–organic framework (MOF) with intrinsic in‐plane porosity that undergoes a distinct and reversible colour ...
Sergio R. Gamarra   +4 more
wiley   +1 more source

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

open access: yesAdvanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang   +11 more
wiley   +1 more source

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