Results 31 to 40 of about 56,210 (306)

Elimination kinetics of diisocyanates after specific inhalative challenges in humans: mass spectrometry analysis, as a basis for biomonitoring strategies

open access: yesJournal of Occupational Medicine and Toxicology, 2011
Background Isocyanates are some of the leading occupational causes of respiratory disorders, predominantly asthma. Adequate exposure monitoring may recognize risk factors and help to prevent the onset or aggravation of these aliments.
Lemiere Catherine   +4 more
doaj   +1 more source

Modeling of Isocyanate Synthesis by the Thermal Decomposition of Carbamates

open access: yesComputation, 2020
The presented work is devoted to isocyanate synthesis by the thermal decomposition of carbamates model. The work describes the existing isocyanate-obtaining processes and the main problems in the study of isocyanate synthesis by the thermal decomposition
Ratmir Dashkin   +7 more
doaj   +1 more source

Synthesis and research of polyfunctional silylureas used in electric deposition of tin-indium alloy

open access: yesChimica Techno Acta, 2021
Polyfunctional silylureas were synthesized by the interaction of 3-aminopropyltriethoxysilane with isocyanates of various structures in an inert aromatic solvent.
K. Yu. Ivanova   +5 more
doaj   +1 more source

Diisocyanates influence models of atopic dermatitis through direct activation of TRPA1.

open access: yesPLoS ONE, 2023
We recently used EPA databases to identify that isocyanates, most notably toluene diisocyanate (TDI), were the pollutant class with the strongest spatiotemporal and epidemiologic association with atopic dermatitis (AD).
Manoj Yadav   +7 more
doaj   +2 more sources

PECULIARITIES OF ISOCYANATES INTERACTION WITH HYDRAZINE DERIVATIVES

open access: yesТонкие химические технологии, 2018
The results of studies on chemical transformations of organic and organosilicon isocyanates in their interaction with hydrazine derivatives have been summarized in this review.
A. D. Kirilin   +4 more
doaj   +1 more source

Synthesis of 3-Trifluoromethyl-5,6-dihydro-[1,2,4]triazolo Pyrazine Derivatives and Their Anti-Cancer Studies

open access: yesMolbank, 2020
The synthesis of a wide variety of 3-trifluoromethyl-5,6-dihydro-[1,2,4]triazolo pyrazine derivatives, by the treatment of 3-trifluoromethyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-α]pyrazine hydrochloride with an array of isocyanates in the presence of ...
Rajaiah Raveesha   +2 more
doaj   +1 more source

Characterization of Metal Nanoparticles/Polyurethane Foams for Practical Applications

open access: yesProceedings, 2023
Polyurethane foam can generally be defined as an expanded cellular product produced by the interaction of active compounds with hydrogen, water and isocyanates [...]
Toma Fistos   +8 more
doaj   +1 more source

Nanoencapsulation of blocked isocyanates through aqueous emulsion polymerization

open access: yeseXPRESS Polymer Letters, 2008
Blocked isocyanates were successfully encapsulated into polystyrene and hydroxyl and amine functionalized polymeric nanospheres via emulsion polymerization.
doaj   +1 more source

One-pot sequential synthesis of isocyanates and urea derivatives via a microwave-assisted Staudinger–aza-Wittig reaction

open access: yesBeilstein Journal of Organic Chemistry, 2013
A fast and efficient protocol for the synthesis of N,N'-disubstituted urea derivatives from alkyl halides and primary or secondary amines has been developed.
Diego Carnaroglio   +5 more
doaj   +1 more source

Prevalence of respiratory symptoms in automobile spray painters of Mumbai: A cross-sectional study

open access: yesIndian Journal of Allergy Asthma and Immunology, 2018
Background: Spray painting poses health hazards that affect the respiratory system. During spray painting, workers are exposed to different paint components.
Shweta Kishor Nahar, Mohd Adil Ashraf
doaj   +1 more source

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