Results 41 to 50 of about 2,853 (179)

Depolymerization of polyamide 6 in hydrophilic ionic liquids

Green Energy & Environment, 2019
Polyamide 6 underwent an efficient depolymerization in hydrophilic ionic liquids under microwave irradiation at 300 °C. The depolymerization completed within 60 min.
Akio Kamimura, Yuto Shiramatsu, Takuji Kawamoto   +2 more
doaj   +1 more source

Industrial Process and Modern Technical Adaptations for Nylon 6 Monomer Caprolactam: A Mini Review

Medžiagotyra
Caprolactam is in high demand in the new materials industry as a monomer for nylon and polyamides. Although the schemes of traditional processes such as hydroxylamine production (hydroxylamine sulphate oxime process, hydroxylamine phosphate oxime process,
Jing HUANG, Qimin LIU, Wangcheng WU, Yuehong MA, Jianhui HUANG   +4 more
doaj   +1 more source

Toward industrial use of anionically activated lactam polymers: Past, present and future

Advanced Industrial and Engineering Polymer Research, 2018
This paper gives an overview of lactam-based polymers and related composites produced via anionic ring opening polymerization (AROP). Recent and past achievements, grouped into academic and industrial research works, and covering also the chemistry ...
Ilya Sibikin, József Karger-Kocsis
doaj   +1 more source

DFT–Assisted Structure Determination from Powder X-ray Diffraction Data of a New Zonisamide/ϵ-Caprolactam Cocrystal

Crystals, 2022
The crystal structure of a new zonisamide cocrystal, an anticonvulsant drug used to treat the symptoms of epilepsy and Parkinson’s disease, with ϵ-caprolactam is reported herein.
Rafael Barbas, Anna Portell, Rafel Prohens, Antonio Frontera   +3 more
doaj   +1 more source

Spectroscopic Investigation of Polysulfide Redox Evolution in Catholyte Solutions for Potassium–Sulfur Batteries

Advanced Functional Materials, Volume 36, Issue 50, 22 June 2026.
Potassium–sulfur batteries are investigated using UV–vis spectroscopy to track the evolution of potassium polysulfide species at elevated temperature. The study reveals sulfur radical anions as key intermediates and shows how solvent composition and cell design influence polysulfide stability, redox behavior, and cycling performance, providing insights
Chiara Morini, Dawid Kasprzak, Lincoln Crowe, Cecilia Spedalieri, Johannes Baller, Naiyu Qi, Fariza Kalyk, Gustav Graeber   +7 more
wiley   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

Analytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela, Raffael Silva Santos Almeida, Ivana Ferreira Simões, Aline Gonçalves Miranda, Magno Oliveira Ramos, Roberto Rodrigues Bandeira Tosta Maciel, Fernanda Warken Rosa, Aníbal de Freitas Santos Júnior   +7 more
wiley   +1 more source

Green Production Technology of the Monomer of Nylon-6: Caprolactam

Engineering, 2017
After two decades’ endeavor, the Research Institute of Petroleum Processing (RIPP) has successfully developed a green caprolactam (CPL) production technology. This technology is based on the integration of titanium silicate (TS)-1 zeolite with the slurry-
Baoning Zong, Bin Sun, Shibiao Cheng, Xuhong Mu, Keyong Yang, Junqi Zhao, Xiaoxin Zhang, Wei Wu   +7 more
doaj   +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

Toxicological Evaluation of the Undesirable Components in Processed Infant Foods Using Artificial Intelligence

Future Postharvest and Food, Volume 3, Issue 2, Page 185-205, June 2026.
The detection of toxins in baby food using artificial intelligence. ABSTRACT Infant foods and baby formulas are becoming increasingly popular across the globe owing to their ease of consumption and nutritional value specific to infants. Impurities may find their way into the food chain at any point from the acquisition of raw materials to final ...
Poornima Singh, Anurag Singh, Ashutosh Upadhyay, Navneet Kumar   +3 more
wiley   +1 more source

Allergic Sensitization to Inhalant Allergens in the Upper Respiratory Tract—the B Cell Side

Allergy, Volume 81, Issue 6, Page 1985-2000, June 2026.
ABSTRACT Allergic diseases are on the rise worldwide, driven by respiratory epithelial barrier dysfunction that promotes sensitization to inhalant allergens such as pollen, dust mites, pet dander, and fungal spores. These antigens trigger IgE‐mediated immune responses that lead to diseases such as allergic rhinitis (AR) and asthma.
Ola Grimsholm, Mohammed Zghaebi, Bita Hambrecht, Tanja Kalic, Christopher C. Udoye, Rudolf Manz, Barbara Bohle, Katarzyna M. Sitnik, Julia Eckl‐Dorna, Heimo Breiteneder   +9 more
wiley   +1 more source