Results 11 to 20 of about 13,053 (263)

Molecular Simulations of VaporLiquid Equilibrium of Isocyanates [PDF]

open access: yes, 2021
The wide range of applications of the isocyanates across multiple industries sparks the interest in the study of their phase behavior. A molecular simulation is a powerful tool that can go beyond experimental investigations relying on a molecular ...
Alina Emelianova   +3 more
core   +5 more sources

Catalyzed Reaction of Isocyanates (RNCO) with Water [PDF]

open access: yes, 2021
The reactions between substituted isocyanates (RNCO) and other small molecules (e.g. water, alcohols, and amines) are of significant industrial importance, particularly for the development of novel polyurethanes and other useful polymers. We present very
Mark, Wolf   +2 more
core   +1 more source

Rotational Moulding of Thermosets: Understanding of a Reactive Forming Process [PDF]

open access: yes, 2008
L'auteur Abbas TCHARKHTCHI faisait parti en 2008 du Laboratoire d’Ingénierie des Matériaux (LIM). Depuis 2010, le LIM a fusionné avec deux autres unités de recherche en un seul laboratoire intitulé PIMM (Procédés et Ingénierie en Mécanique et Matériaux).
TCHARKHTCHI, Abbas   +5 more
core   +1 more source

Spirometric measurement among polyurethane foam mattress-making workers of India

open access: yesIndian Journal of Community Medicine, 2021
Background: The polyurethane foam (PUF) mattress-making workers are exposed to isocyanates which are known respiratory toxicants and cause effect on pulmonary volumes and flows.
Rajnarayan Ramshankar Tiwari   +1 more
doaj   +1 more source

Iron(II)-Catalyzed Hydroamination of Isocyanates [PDF]

open access: yes, 2019
A two-coordinate Fe­(II) m-terphenyl complex acts as a precatalyst for the hydroamination of isocyanates, affording urea and biuret derivatives, with product selectivity accomplished via modification of the reaction conditions.
Ana M. Geer (2095597)   +6 more
core   +4 more sources

Chemoselective Hydroboration of Isocyanates Catalyzed by Commercially Available NaH [PDF]

open access: yes, 2022
A simple, efficient, and economical method for the chemoselective hydroboration of isocyanates is reported. Commercially available NaH, at very low loadings, efficiently catalyzes the selective conversion of isocyanates to N‐boryl formamides, bis(boryl ...
Ma, Xiaoli; 1 School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing 100081 P. R. China   +7 more
core   +1 more source

A versatile way for the synthesis of monomethylamines by reduction of N-substituted carbonylimidazoles with the NaBH4/I2 system

open access: yesBeilstein Journal of Organic Chemistry, 2022
An economical and versatile protocol for the one-pot synthesis of monomethylamines by reduction of N-substituted carbonylimidazoles with NaBH4/I2 in THF at reflux temperature is described. This method used no special catalyst and various monomethylamines
Lin Chen   +5 more
doaj   +1 more source

Reactivity of Isocyanate-Functionalized Lignins: A Key Factor for the Preparation of Lignin-Based Polyurethanes

open access: yesFrontiers in Chemistry, 2019
Using isocyanate-functionalized Kraft lignin as a reactive macromonomer for the preparation of polyurethane foams by a prepolymer technique is a well-known strategy to incorporate the biomacromolecule into a higher value polymer material.
Mareike Zieglowski   +9 more
doaj   +1 more source

Investigations of catalysis of urethane formation using organotin dicarboxylate

open access: yesHeliyon, 2020
The reaction mechanism of the urethane formation for both aliphatic and aromatic isocyanates in the presence of organotin dicarboxylate as a catalyst is investigated theoretically and experimentally.
Ransi Devendra   +2 more
doaj   +1 more source

Two routes to [11C-carbonyl]organo-isocyanates utilizing [11C]phosgene ([11C]organo-isocyanates from [11C]phosgene) [PDF]

open access: yes, 2001
Two generic radiosynthetic routes for the preparation of [11C-carbonyl]isocyanates have been developed. Reaction of N-organo-sulfinylamines; RNSO, (R = Me, Et, allyl, cyclohexyl and phenyl) with [11C]phosgene gave the corresponding [11C-carbonyl ...
Brown, G. D.   +11 more
core   +1 more source

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