Results 71 to 80 of about 48,855 (207)

XXIII.—On isoprene and caoutchin [PDF]

J. Chem. Soc.
n ...
openaire   +2 more sources

Processability and Crosslink Density: Role of Peptizers in Natural Rubber and Chlorobutyl Rubber

Journal of Applied Polymer Science, Volume 143, Issue 22, June 10, 2026.
This work evaluates how chemical and physical peptizers affect mastication, vulcanization behavior, and network formation in natural rubber and chlorobutyl rubber. Size‐exclusion chromatography, rheometry, DSC, and swelling analyses demonstrate improved processability but reduced crosslink density with peptizer addition.
Amanda F. Baruel, Sérgio L. G. Petroni, Sandra A. C. de Mello, Jorge C. N. Dutra, Silvana N. Cassu   +4 more
wiley   +1 more source

Benchtop NMR Spectroscopy of Pyrolysis Oils From Mixed Plastic Waste: Parameter Optimization for Oil Characterization and Detection of Heteroatom‐Containing Compounds

Chemistry–Methods, Volume 6, Issue 6, June 2026.
In this article, benchtop‐NMR spectroscopy was evaluated as an analytical method for the characterization of plastic waste derived pyrolysis oils. The signal‐to‐noise ratio was enhanced via measurement parameter optimization and optimization of postacquisition parameters.
Anika Goecke, Jonas Vogt, Salar Tavakkol, Shahram Mihan, Volker Fraaije, Ricardo Kurz, Diana Dötsch, Dieter Stapf, Manfred Wilhelm   +8 more
wiley   +1 more source

Bibliometric Analysis of Cubebenes and Related Sesquiterpenes: Natural Occurrence, Biosynthesis, Pharmacological Activities, and In‐Silico‐Based Future Therapeutic Potential

eFood, Volume 7, Issue 3, June 2026.
Cubebene‐related sesquiterpenes, found across diverse biological sources, exhibit promising pharmacological activities, including anti‐inflammatory, neuroprotective, and anticancer effects. This review highlights their molecular diversity, ADME profiles, and predicted multitarget interactions, underscoring their therapeutic relevance and potential in ...
Khadija Boualam, Ahmet B. Ortaakarsu, Sohaib Khatib, Mohamed A. Farag, Mansour Sobeh   +4 more
wiley   +1 more source

Umbelliprenin in Food and Medicinal Plants: Phytochemical Occurrence, Biosynthesis, Analytical Approaches, and Biological Activities

Phytochemicals in Food and Medicine, Volume 1, Issue 2, June 2026.
This review provides an extensive and critical synthesis of current knowledge on umbelliprenin, integrating phytochemical, analytical, biological, ecological, and food science perspectives, and identifies priorities for future research. ABSTRACT Umbelliprenin (7‐farnesyloxycoumarin) is an oxyprenylated coumarin that has gained increasing attention in ...
Chiara Collevecchio, Lorenzo Marchetti, Francesco Epifano, Salvatore Genovese, Serena Fiorito   +4 more
wiley   +1 more source

Role of Future Climate Change, Air Pollution Control and Methane Mitigation in Driving Hydroxyl Radical (OH) and Methane Lifetime

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The hydroxyl radical (OH) determines the atmospheric lifetime of many pollutants like methane (CH4 ${\text{CH}}_{4}$). This study isolates climate change, air pollution control and CH4 ${\text{CH}}_{4}$ mitigation effects on OH concentrations ([OH]) and CH4 ${\text{CH}}_{4}$ lifetime, by analyzing Coupled Model Intercomparison Project Phase 6 (
G. Chua, V. Naik, L. W. Horowitz
wiley   +1 more source

Toward Closing the Hydroxyl Radical (OH) Budget: Assessing the Feasibility and Uncertainties in Constraining primary OH Production From Space

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Recent progress in constraining the atmosphere's primary oxidant, the hydroxyl radical (OH), with machine learning (ML) and satellite data raises the intriguing possibility of also constraining individual OH chemical production and loss terms.
Daniel C. Anderson, Bryan N. Duncan, Amir H. Souri, Junhua Liu, Sarah Strode, Doyeon Ahn   +5 more
wiley   +1 more source

Application and Evaluation of a NOAA GFS‐Driven Air Quality Model Using CMAQv5.4 and High‐Resolution Emissions: FIREX‐AQ 2019

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract The National Air Quality Forecast Capability (NAQFC) provides numerical forecasting guidance of air quality up to 72 hr ahead over the United States. In this study, we evaluate the changes in its prediction skills by updating the Community Multiscale Air Quality (CMAQ) modeling system from version 5.3.1 to 5.4 and utilizing a high‐resolution 1‐
Kiarash Farzad, Yang Zhang, Daniel Tong, Siqi Ma, Youhua Tang, Jianping Huang, Patrick C. Campbell, Havala O. T. Pye, Benjamin Murphy, Fanglin Yang, Barry Baker, Daiwen Kang, Bill Hutzell, Golam Sarwar   +13 more
wiley   +1 more source

Observations of total RONO2 over the boreal forest: NO x sinks and HNO3 sources [PDF]

, 2013
In contrast with the textbook view of remote chemistry where HNO 3 formation is the primary sink of nitrogen oxides, recent theoretical analyses show that formation of RONO2 (ΣANs) from isoprene and other terpene precursors is the primary net chemical ...
Apel, E, Blake, DR, Browne, EC, Brune, WH, Cantrell, CA, Cohen, RC, Cubison, MJ, Diskin, GS, Jimenez, JL, Min, KE, Weinheimer, AJ, Wennberg, PO, Wisthaler, A, Wooldridge, PJ   +13 more
core   +1 more source

Secondary Organic Aerosol Formation During Continental to Oceanic Transition in South China Coast: Effects of Photostationary State, Aqueous‐Phase Processes, and Heatwaves

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 9, 16 May 2026.
Abstract Despite the overall decreasing trend of particulate matter (PM) pollution across urban China, PM pollution persists in certain areas, especially in fast‐developing southeastern coastal regions. The characteristics and evolution of PM during the more polluted autumn and winter seasons have been widely studied, but studies focusing on spring and
Lulu Zeng, Qianying Liu, Dan Dan Huang, Racliffe Weng Seng Lai, Huabin Shi, Ka In Hoi, Kei Meng Mok, Yong Jie Li   +7 more
wiley   +1 more source