Results 121 to 130 of about 73,479 (225)

Bio‐Based Polyurethanes: Mechanical Performance, Structure–Property Relationships, and Future Directions

Journal of Polymer Science, Volume 64, Issue 9, Page 1860-1894, 1 May 2026.
This review examines bio‐based polyurethanes from renewable feedstocks, focusing on structure‐property relationships governing mechanical performance. It analyzes reinforcement strategies, benchmarks against petrochemical counterparts, and explores future directions, including non‐isocyanate routes and circular economy integration for sustainable high ...
Khaled Chawraba, Hussein Medlej, Mohamad Sakr, Akram Hijazi, Abrar Hussain   +4 more
wiley   +1 more source

Cyclic carbamates from epoxides and isocyanates catalysed by inorganic salts. [PDF]

RSC Adv
Holland J, Clark RA, Shaver MP.
europepmc   +1 more source

Using Multiple Diagnostic Methods for Occupational Asthma Assessment

The Clinical Respiratory Journal, Volume 20, Issue 5, May 2026.
PC20 variability demonstrated higher diagnostic accuracy than PEFR monitoring in occupational asthma (OA), with a sensitivity of 90% and specificity of 92%. PEFR alone resulted in a 22.2% misclassification rate. Incorporating PC20 variability into diagnostic evaluation may reduce misdiagnosis and improve clinical outcomes in high‐exposure settings ...
Bilge Akgündüz, Günhan Yavaşoğlu
wiley   +1 more source

Effect of Matrix Properties on Quasi‐Static and Fatigue Properties of Thermosetting Polyurethane and Its GFRP Composites

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1929-1943, May 2026.
ABSTRACT In this study, the influence of resin cross‐link density on thermomechanical properties and fatigue behavior of polyurethane resins and glass fiber‐reinforced polyurethane (PUR‐GFRP) composites was investigated. This material is a candidate for renewable energy applications like rotor blades in wind turbines.
Martin Demleitner, Daniel Raps, Sarah Mäker, Qi Chen, Alexander Brückner, Holger Ruckdäschel   +5 more
wiley   +1 more source

Effect of covalent functionalisation with isocyanates on the electrochemical properties of exfoliated black phosphorus electrodes. [PDF]

Sci Rep
Jakóbczyk P, Dettlaff A, Pierpaoli M, Wójcik B, Makowiec S, Bogdanowicz R.   +5 more
europepmc   +1 more source

Comparative Thermal and Fire Behavior of Rigid Polyurethane (PUR) and Polyisocyanurate (PIR) Foams Formulated with Recycled Poly(ethylene terephthalate) (PET) Polyols-Part 1. [PDF]

Materials (Basel)
Skowron M, Lelek-Borkowska U, Kaczmarska K.   +2 more
europepmc   +1 more source

Activation of Cyanate Anions by Phosphine Radical Cations Enables Formal Hydrocarbamoylation of Alkenes. [PDF]

Angew Chem Int Ed Engl
Vojáčková P, Studer A.
europepmc   +1 more source

Coordinative Ring-Opening Copolymerization of Limonene Carbamate and ε-Caprolactone Toward Phosgene- and Isocyanate-Free Polyesterurethane Block-Copolymers with Tunable Properties. [PDF]

Macromol Rapid Commun
Futter J, Pfaadt H, Rieger B.
europepmc   +1 more source

Design, Synthesis, and Structure-Activity Relationships of Substituted Phenyl Cyclobutylureas as Potential Modulators of Inflammatory Responses. [PDF]

Pharmaceuticals (Basel)
Chavez Alvarez AC, Carpentier A, Sahli A, Perreault M, Ngon AD, Moreau E.   +5 more
europepmc   +1 more source

Regioselective multicomponent synthesis of α-boryl ureas: discovery of a potent main protease inhibitor. [PDF]

Org Biomol Chem
Gyasi YI, Nyalata S, Pa S, Gunasekera D, Vulupala VR, Mallampudi NR, Ramidi GR, Xu S.   +7 more
europepmc   +1 more source