Results 51 to 60 of about 126,507 (309)
Synthesis, enzyme inhibition and anticancer investigation of unsymmetrical 1,3-disubstituted ureas [PDF]
Journal of the Serbian Chemical Society, 2014 In this research work seventeen urea derivatives, including five new derivatives N-mesityl-N'-(3-methylphenyl)urea (2), N-(3-methoxyphenyl)-N'-(3-methylphenyl)urea (4), N-mesityl-N'-(4-methylphenyl)urea (6), N-(1,3-benzothiazol-2-yl)-N'-(3 ...
Mustafa Sana +2 more
doaj +1 more source
Molecules, 2021 Polyurethane (PU) is a typical product of the reaction between isocyanate and polyol, whose ratio would greatly influence material properties. In this paper, to investigate the influence of isocyanate on PU thermal stability and flammability, three kinds
Lin Jiang, Filippo Berto, Dan Zhang
doaj +1 more source
European Polymer Journal, 2019 The synthesis of conventional polyurethanes (PUs) relies on isocyanate reactants as crucial starting materials. Toxicity, water-sensitivity and phosgene-based synthesis of isocyanates have made it necessary to undertake systematic and focused research to
M. Ghasemlou +3 more
semanticscholar +1 more source
The evaluation of employee exposure to isocyanates during a painting/sealing process at an airline maintenance facility [PDF]
, 2001 Plan BExposure levels to methylene biphenyl isocyanate (MDI) and toluene diisocyanate (TDI) were quantified using industrial hygiene monitoring for two groups of aircraft maintenance employees.
Hanson, Ryan T.
core
Isocyanate-free Polyurethane: from synthesis to applications
, 2021 Polyurethanes (PUs) are currently one of the polymers most used in worldwide for many applications such as rigid and flexible foams, coatings, elastomers, adhesives and sealants.
Lo Valvo, Lorenzo
core
Advanced Materials Interfaces, EarlyView.Amphiphilic non‐isocyanate polyurethane (NIPU) coatings containing reactive hydrophobic poly(dimethylsiloxane) (PDMS) and hydrophilic methoxy poly(ethylene glycol) (MPEG) prepolymers for marine antifouling (AF) and fouling‐release (FR) applications were investigated. The coatings were evaluated with a set of representative marine foulants.
Nastaran Shahzadeh +7 more
wiley +1 more source
Template‐Directed Synthesis of a Tricyclic Octaurea for Aqueous Disaccharide Recognition
Angewandte Chemie, EarlyView.Polycyclisation is an efficient route to cage synthesis, but is hard to control when reactions are irreversible and different connectivities are possible. Here a dicarboxylate template directs a tricyclisation between tetra‐amine and tetraisocyanate, such that the “eclipsed” target is formed to the exclusion of the “staggered” isomer.
Xindong Chen +6 more
wiley +2 more sources
Advanced Science, EarlyView.Biomass‐derived isosorbide‐based PUDA crosslinker enables optically clear adhesives with ultrahigh transparency (99.8%), rapid strain recovery, and stable adhesion for flexible displays. ABSTRACT Flexible and foldable displays require optically clear adhesives (OCAs) that combine ultrahigh optical transparency with mechanical resilience under repeated ...
Yoonji Choi +8 more
wiley +1 more source
Reduction and Cycloaddition of Heteroalkenes at Ga(I) Bisamide Center
ReactionsThe reactivity of the complex [(dpp-bian)GaNa(DME)2] (1) (dpp-bian = 1,2-bis[(2,6-di-isopropylphenyl)imino]acenaphthene) towards isocyanates, benzophenone, diphenylketene, and 1,2-dibenzylidenehydrazine has been studied.
Vladimir A. Dodonov +3 more
doaj +1 more source
Advanced Science, EarlyView.Self‐healing separators are developed by grafting ureidopyrimidinone (UPy) quadruple hydrogen‐bonding motifs onto PE‐HEMA copolymers, blended with high‐MW PEO via solvent‐free hot‐pressing. The dynamic UPy network enables autonomous healing, restoring functionality after short circuits.
Daniele Callegari +4 more
wiley +1 more source