Results 1 to 10 of about 73,479 (225)

Application of isocyanate-based materials in asphalt pavement: A review

open access: yesJournal of Road Engineering
Isocyanate and its products are playing an increasingly important role in the high-performance development of asphalt pavement, but researchers have always focused on polyurethane (PU), one of the isocyanate products, and neglected the other roles of ...
Haiqin Xu, Shaopeng Wu
exaly   +3 more sources

Nucleophilic Isocyanation [PDF]

open access: yesACS 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

A Novel Synthetic Approach of Functionalised GO and CNT to Nanocomposite Containing Active Nanostructured Fillers for Classical Isocyanate Curing

open access: yesChemistry Proceedings, 2021
A novel synthetic method has been developed by utilizing the chemical reactivity of functionalized graphene and CNT with a covalent combination of chemically diverse GO/FCNT and toluene diisocyanate, thereby yielding a synergistic polymer nanocomposite ...
Lina Jadhav   +6 more
doaj   +1 more source

Copper-catalyzed reaction of aziridine for the synthesis of substituted imidazolidine and imidazolidinone

open access: yesFrontiers in Chemistry, 2023
Herein we report a copper-catalyzed synthesis of imidazolidine by employing the reaction of aziridine with imine. The reaction smoothly provided a diverse range of 2-substituted imidazolidines with high compatibility with various functional groups ...
Kota Hashimoto   +4 more
doaj   +1 more source

Reduced Isocyanate Release Using a Waterproof, Resin-Based Cast Alternative Relative to Fiberglass Casts

open access: yesToxics, 2023
The effects of occupational isocyanate exposure range from asthma and contact dermatitis to neurotoxicity and cancer. Respiratory sensitization due to orthopedic cast application has been well documented. This study aims to compare the safety of standard-
Kristen Stefanescu   +3 more
doaj   +1 more source

Cylindrical IR-ATR Sensors for Process Analytics

open access: yesSensors, 2020
Infrared attenuated total reflection (ATR) spectroscopy is a common laboratory technique for the analysis of highly absorbing liquids and solids. However, in a process environment, maintaining a sufficient sample exchange and cleaning of the sensitive ...
Armin Lambrecht   +4 more
doaj   +1 more source

Study of the catalytic selectivity of an aqueous two-component polyurethane system by ftir spectroscopy [PDF]

open access: yesHemijska Industrija, 2003
The difficulty in formulating a two component waterborne polyurethane, is the isocyanate-water side reaction, which can lead to gassing/foaming, loss of isocyanate functionality, low gloss and a reduced pot life.
Stamenković Jakov V.   +2 more
doaj   +1 more source

Paving the Way towards Sustainability of Polyurethanes: Synthesis and Properties of Terpene-Based Diisocyanate

open access: yesMolecules, 2023
Due to growing concerns about environmental issues and the decline of petroleum-based resources, the synthesis of new biobased compounds for the polymer industry has become a prominent and timely topic.
Aliénor Delavarde   +4 more
doaj   +1 more source

Synthesis and biological evaluation of novel urea and thiourea derivatives of valacyclovir [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
A series of novel urea and thiourea derivatives of valacyclovir were efficiently synthesized in high yields and evaluated their antiviral activity.
Katla Ramana Venkata   +4 more
doaj   +1 more source

Sustained Release Drug Delivery Applications of Polyurethanes

open access: yesPharmaceutics, 2018
Since their introduction over 50 years ago, polyurethanes have been applied to nearly every industry. This review describes applications of polyurethanes to the development of modified release drug delivery.
Michael B. Lowinger   +3 more
doaj   +1 more source

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