Results 1 to 10 of about 57,276 (400)
First detection of C$_2$H$_5$NCO in the ISM and search of other isocyanates towards the G+0.693-0.027 molecular cloud [PDF]
A&A 654, L1 (2021), 2021 Little is known about the chemistry of isocyanates (compounds with the functional group R-N=C=O) in the interstellar medium, as only four of them have been detected so far: isocyanate radical (NCO), isocyanic acid (HNCO), N-protonated isocyanic acid (H$_2$NCO$^+$) and methyl isocyanate (CH$_3$NCO).
L. Rodríguez-Almeida +11 more
arxiv +3 more sources
Influence of fullerene content on the properties of polyurethane resins: A study of rheology and thermal characteristics [PDF]
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 +2 more sources
ACS OmegaIsocyanate, a pivotal chemical intermediate to synthesize polyurethane with widespread applications in household appliances, automobiles, and construction, is predominantly produced via the phosgene process, which currently holds a paramount status in industrial isocyanate production.
Guo Z, Ding X, Wang Y.
europepmc +4 more sources
Nucleophilic Isocyanation [PDF]
ACS Omega, 2020 Isonitriles are frequently employed as both substrates for organic transformations and ligands for organometallic chemistry. However, despite the wide application of the isonitriles, their synthesis generally depends on the traditional dehydration of N-formamide.
Taiga Yurino, Takeshi Ohkuma
openaire +3 more sources
Pharmaceutics, 2023 A novel series of benzimidazole ureas 3a–h were elaborated using 2-(1H-benzoimidazol-2-yl) aniline 1 and the appropriate isocyanates 2a–h. The antioxidant and possible antidiabetic activities of the target benzimidazole-ureas 3a–h were evaluated.
Lotfi M. Aroua +8 more
doaj +1 more source
Millimeter wave spectrum and search for vinyl isocyanate toward Sgr B2(N) with ALMA [PDF]
A&A 666, A50 (2022), 2022 The interstellar detections of isocyanic acid, methyl isocyanate, and very recently also ethyl isocyanate, open the question of the possible detection of vinyl isocyanate in the interstellar medium. The aim of this study is to extend the laboratory rotational spectrum of vinyl isocyanate into the millimeter wave region and to undertake a check for its ...
arxiv +1 more source
Kinetic Investigation of Polyurethane Rubber Formation from CO2‐Containing Polyols [PDF]
, 2020 A novel CO2 utilization technology allows for the inclusion of CO2 as carbonate units and double bond moieties to give additional functionality in polyether polyols.
Buchner, Georg A. +5 more
core +1 more source
Spirometric measurement among polyurethane foam mattress-making workers of India
Indian 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
Synthesis of novel urethanes from a castor oil derived C22-acyloin [PDF]
, 2011 The synthesis of new bio-based chemical building blocks, resulting from the condensation of a renewable C-22 acyloin derived from non-edible castor oil, with mono- and bifunctional isocyanates is reported. The condensation with aliphatic mono-isocyanates
Stevens, Christian +2 more
core +2 more sources