Results 111 to 120 of about 48,553 (267)
A Biosourced and Self‐Healable Polymer Electrolyte for Potassium Batteries
EcoEnergy, EarlyView.A biosourced lignin‐filled gel polymer electrolyte combines suppressed crystallinity, high ionic conductivity, and UPy‐driven self‐healing for potassium batteries. The optimized formulation sustains long‐term cycling with 97.5% capacity retention after 1000 cycles and preserves electrochemical operation after intentional membrane damage.
Sabrina Trano +6 more
wiley +1 more source
HeliyonThe effect of different contents of fullerene on the properties of polyurethane resins (PUs), including rheology and thermal properties, was investigated.
Nazym Ye Akhanova +9 more
doaj +1 more source
Isocyanate toughened pCBT: Reactive blending and tensile properties
eXPRESS Polymer Letters, 2013 Cyclic butylene terephthalate oligomers (CBT) were reacted in a ring-opening polymerization with three types of isocyanates: a bifunctional aromatic type, a bifunctional aliphatic type and a polymeric aromatic isocyanate.
T. Abt +3 more
doaj +1 more source
Flexible Phase Change Bandage Incorporated With Zeolite for Temperature‐Controlled Wound Hemostasis
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A novel flexible hemostatic phase change bandage (HPB) was designed and constructed through chemical cross‐linking and electrospinning to mitigate thermal injury and broaden the application of PCMs in the medical field. Furthermore, the flexible HPB shows thermal stability, strong mechanical strength, excellent infiltration, and reliable thermal ...
Xinyu Zhang +8 more
wiley +1 more source
Synthesis, Modification and Prospect of Bio-based Polyurethane
Pige Kexue Yu GongchengBio-based polyurethane is a type of polyurethane material primarily derived from natural bio-based raw materials, synthesized through the reaction of bio-based polyols and bio-based isocyanates.
Kangjia SONG +4 more
doaj +1 more source
Rhodium-Catalyzed Addition of Organozinc Iodides to Carbon-11 Isocyanates
, 2020 Amides were prepared using rhodium-catalyzed coupling of organozinc iodides and carbon-11 (11C, t1/2 = 20.4 min) isocyanates. Nonradioactive isocyanates and sp3 or sp2 organozinc iodides generated amides in yields of 13%–87%.
Braeden A. Mair +9 more
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A quinary UV‐curable SiHfBCN ceramic photoresist with high ceramic yield enhanced is developed through sequential molecular design for high‐temperature sensing coatings. The elevated interconnected conductive network induced by chemically bonded carboxylated MWCNTs enables the pyrolyzed ceramics' enhanced conductivity and excellent oxidation stability.
Xiyue Zhu +8 more
wiley +1 more source
Occupational allergic and irritant contact dermatitis in workers exposed to polyurethane foam
International Journal of Occupational Medicine and Environmental Health, 2014 Objectives: To evaluate sensitization to chemicals present in work environment after an outbreak of contact dermatitis in workers of vehicle equipment factory, exposed to polyurethane foam, based on 4,4'-diphenylmethane diisocyanate (MDI).
Marta Kieć-Świerczyńska +4 more
doaj
Bio-Based Polyurethane Foams: Feedstocks, Synthesis, and Applications
BiomoleculesPolyurethanes (PUs) are extremely versatile materials used across different industries. Traditionally, they are synthesized by reacting polyols and isocyanates, both of which are petroleum-derived reagents. In response to the demand for more eco-friendly
Marta Santos +4 more
doaj +1 more source
Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates
Beilstein Journal of Organic Chemistry, 2012 [RhCp*(OAc)2(H2O)] [Cp* = pentamethylcyclopentadienyl] catalyzed the C–H bond amidation of ferrocenes possessing directing groups with isocyanates in the presence of 2 equiv/Rh of HBF4·OEt2.
Satoshi Takebayashi +3 more
doaj +1 more source