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Relevant bibliographies by topics / Organic isocyanates

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Academic literature on the topic 'Organic isocyanates'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Organic isocyanates"

1

Kirilin, A. D., L. O. Belova, N. I. Kirilina, A. V. Petrogradsky, and N. L. Shembel. "PECULIARITIES OF ISOCYANATES INTERACTION WITH HYDRAZINE DERIVATIVES." Fine Chemical Technologies 13, no. 4 (2018): 39–49. http://dx.doi.org/10.32362/2410-6593-2018-13-4-39-49.

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The results of studies on chemical transformations of organic and organosilicon isocyanates in their interaction with hydrazine derivatives have been summarized in this review. It is shown that hydrazine and its derivatives including organosilicon compounds reacting with organic isocyanates form corresponding semicarbazides readily enough. The reaction conditions that effect the composition, structure and yield of the resulting target products are presented. A significant difference in the interaction of trimethylsilyl isocyanate with organic and organosilicon derivatives of hydrazine is demon

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Abushammala, Hatem, and Jia Mao. "A Review of the Surface Modification of Cellulose and Nanocellulose Using Aliphatic and Aromatic Mono- and Di-Isocyanates." Molecules 24, no. 15 (2019): 2782. http://dx.doi.org/10.3390/molecules24152782.

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Nanocellulose has been subjected to a wide range of chemical modifications towards increasing its potential in certain fields of interest. These modifications either modulated the chemistry of the nanocellulose itself or introduced certain functional groups onto its surface, which varied from simple molecules to polymers. Among many, aliphatic and aromatic mono- and di-isocyanates are a group of chemicals that have been used for a century to modify cellulose. Despite only being used recently with nanocellulose, they have shown great potential as surface modifiers and chemical linkers to graft

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Han, Young-Sung, Kang-Yeoun Jung, Yong-Joo Kim, Kyoung Koo Baeck, Gang Min Lee, and Soon W. Lee. "Reactivities of zero-valent group 10 complexes toward organic isocyanates: synthesis of metallacycles containing dimeric isocyanate units, isocyanate cyclotrimerization, and computational chemistry." New Journal of Chemistry 43, no. 39 (2019): 15614–25. http://dx.doi.org/10.1039/c9nj03332g.

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Five-membered metallacycles involving dimeric isocyanate units converted into cyclic tetramers and isocyanurates, depending on the central metal or organic isocyanates, and their synthetic and theoretical studies were carried out.

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Lee, Seon Gye, Keun-Young Choi, Yong-Joo Kim, SuJin Park, and Soon W. Lee. "Cyclic tetramers of a five-membered palladacycle based on a head-to-tail-linked isocyanate dimer and their reactivity in cyclotrimerization of isocyanates." Dalton Transactions 44, no. 14 (2015): 6537–45. http://dx.doi.org/10.1039/c5dt00534e.

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Cyclic tetramers of a five-membered palladacycle involving an isocyanate dimer were prepared, and catalytic cyclotrimerization from a palladium zero-compound or a single palladacycle with organic isocyanates was performed.

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Mohammed, Issam A., and Govindarajan Sankar. "Synthesis, deblocking and cure reaction studies of secondary alcohol-blocked isocyanates." High Performance Polymers 23, no. 7 (2011): 535–41. http://dx.doi.org/10.1177/0954008311421833.

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A series of 1,3-dichloro-2-propanol-blocked diisocyanates, based on diisocyanates including 4,4′-methylene di(phenyl isocyanate), toluene-2,4-diisocyanate, isophorone diisocyanate and 1,6-diisocyanatohexane, were prepared and characterized thoroughly by Fourier transform infrared, 1 H-NMR, 13 C-NMR spectroscopic methods and elemental analysis (CHN). The blocking reaction of 1,3-dichloro 2-propanol with aromatic diisocyanates occurs faster than with the aliphatic isocyanates. The deblocking temperature of blocked isocyanates was determined by thermogravimetric analysis, differential scanning ca

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Xiao, Hong, Han X. Xiao, Kurt C. Frisch, and Nelson Malwitz. "Kinetic studies of the reactions between isocyanates and carboxylic acids." High Performance Polymers 6, no. 3 (1994): 235–39. http://dx.doi.org/10.1088/0954-0083/6/3/006.

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Reaction kinetic studies between isocyanates and carboxylic acids were undertaken to evaluate the kinetic parameters. Various isocyanates (phenyl isocyanate, cyclohexyl isocyanate) and carboxylic acids (acetic acid, n-butyric acid, isobutyric acid, dimethylbutyric acid and benzoic acid) were used to study the kinetics of the reactions at different temperatures and in different solvents. It was found that these reactions followed the rate law of second-order reaction. From the Arrhenius plot, the activation energies of these reactions were computed.

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Balci, Metin. "Acyl Azides: Versatile Compounds in the Synthesis of Various Heterocycles." Synthesis 50, no. 07 (2018): 1373–401. http://dx.doi.org/10.1055/s-0036-1589527.

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Carbon–nitrogen bond formation is one of the most important reactions in organic chemistry. Various synthetic strategies for the generation of C–N bonds are described in the literature. For example, primary amines can be easily synthesized by the thermal decomposition of an acyl azide to an isocyanate, i.e. the Curtis rearrangement, followed by hydrolysis; the Curtius rearrangement has been used extensively. Furthermore, the advantage of the Curtius rearrangement is the isolation of acyl azides as well as the corresponding isocyanates. The isocyanates can be converted into various nitrogen-con

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Aguiar, António, António Mariquito, Diogo Gonçalves, Isabel Pinho, and Ana C. Marques. "Biodegradable Microcapsules of Poly(Butylene Adipate-co-Terephthalate) (PBAT) as Isocyanate Carriers and the Effect of the Process Parameters." Polymers 15, no. 3 (2023): 665. http://dx.doi.org/10.3390/polym15030665.

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Poly(butylene adipate-co-terephthalate) (PBAT), a biodegradable flexible, and tough polymer is herein used, for the first time, to encapsulate and protect isocyanate derivatives. Isocyanates are essential building blocks widely employed in the chemical industry for the production of high-performing materials. Microencapsulation of isocyanates eliminates the risks associated with their direct handling and protects them from moisture. In light of this, and having in mind eco-innovative products and sustainability, we present a straightforward process to encapsulate isophorone diisocyanate (IPDI)

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Firdous Imran Ali, Firdous Imran Ali, Rabel Shaikh Rabel Shaikh, Ahmed Bari Ahmed Bari, Umair Ahmad Khan Umair Ahmad Khan, and Shoaib Muhammad and Imran Ali Hashmi Shoaib Muhammad and Imran Ali Hashmi. "Synthesis and Characterization of Low Molecular Weight Organogelators Derived from Amide Derivatives of N-acetylglycine." Journal of the chemical society of pakistan 41, no. 1 (2019): 99. http://dx.doi.org/10.52568/000720/jcsp/41.01.2019.

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Six new N-acetylglycine amides and bisamides were prepared by reacting N-acetylglycine with different isocyanates including, hexamethylene diisocyanate, bis(4-isocyanatophenyl)methane, toluene 2,4-diisocyanate, 1,3-bis(2-isocyanatopropan-2-yl)benzene, phenyl isocyanate and 2-naphthyl isocyanate to furnish amides 1-6. The gelation ability of compounds (1-6) was investigated using fourteen different solvents including polar, non-polar organic solvents. Only compound 1 solidified toluene. Characterization of compounds (1-6) was done using spectroscopic methods, HRESI-MS, FTIR, 1H- and 13C-NMR. Th

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Chen, Mingkang, Fatu Xie, and Yongping Chen. "Facile Preparation of Isocyanate-Modified Melamine Sponges as Efficient Absorbents for Oil and Organic Solvents." Coatings 13, no. 9 (2023): 1501. http://dx.doi.org/10.3390/coatings13091501.

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Hydrophobic melamine sponges were prepared via a facile one-step reaction of three isocyanates (i.e., cyclohexyl isocyanate, octadecyl isocyanate, and butyl isocyanate) with hydroxymethyl groups located on the melamine sponge. The modified sponges were characterized by infrared spectroscopy, scanning electron microscope, X-ray photoelectron spectroscopy, and contact angle tester. The results showed that the water contact angle of the modified sponges reached around 140°, and the sponges had a three-dimensional network with high porosity, which can be used as efficient adsorbents to adsorb a va

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Dissertations / Theses on the topic "Organic isocyanates"

1

Li, Jie. "Design and synthesis of organic chiroptical switches." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/27385.

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Dahlin, Jakob. "Aerosols of Isocyanates, Amines and Anhydrides : Sampling and Analysis." Doctoral thesis, Stockholm : Department of Analytical Chemistry, Stockholm university, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-6786.

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Karahan, Emrah. "Synthesis Of Furopyrrolone And Furopyridazinone Derivatives: A New Class Of Compounds." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612937/index.pdf.

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ABSTRACT SYNTHESIS OF FUROPYRROLONE AND FUROPYRIDAZINONE DERIVATIVES: A NEW CLASS OF COMPOUNDS Karahan, Emrah M.Sc., Department of Chemistry Supervisor: Prof. Dr. Metin Balci February 2011, 102 pages Furopyrrolone has a bicyclic structure consisting of furan and a pyrrolone ring. It is isoelectronic with isoindolinone which is also a heterocyclic organic compound. It has a bicyclic structure, consisting of a benzene ring fused to a five-membered nitrogen containing pyrrolone ring. Pyrrolones, pyrrolidines, pyrrolidinones, pyridazines and pyridazinones are precursors to many pharmaceutic

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Lescouet, Tristan. "Conception et fonctionnalisation de MOFs pour le greffage et l'encapsulation de complexe organométallique." Phd thesis, Université Claude Bernard - Lyon I, 2012. http://tel.archives-ouvertes.fr/tel-00975367.

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Les Metal-Organic Frameworks résultent de l'organisation de clusters métalliques et demolécules organiques chélatantes qui forment un réseau cristallin poreux. Leur découverte apermis des avancées majeures dans le domaine du stockage et de la séparation des gaz.Malheureusement la faible stabilité et l'acidité modérée de ces matériaux ne les rendent quepeu compétitifs par rapport aux zéolites dans le domaine du raffinage ou de la dépollution. Ils'agit d'explorer, avec ces matériaux, de nouvelles applications catalytiques en tirant partie deleur principale qualité : leur modularité. En effet le

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Wang, Xiaojiang. "Polyester Based Hybrid Organic Coatings." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1340906197.

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Eroglu, Gulden. "Isocyanate Functionalization Of Nano-boehmite For The Synthesis Of Polyurethane Organic-inorganic Hybrid Materials." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612930/index.pdf.

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In this study, organic-inorganic hybrid materials were prepared from polyurethane and boehmite. It was achieved by polymerizing monomers in the presence of functional nano-particles of boehmite with cyanate groups. The produced polyurethane organic-inorganic hybrid materials with enhanced mechanical properties were used for coating applications. Plate-like boehmite nano-particles were produced by hydrothermal process from aluminum hydroxide which was first ground in a high energy ball-mill, and then, processed hydrothermally under pressure and high temperature in a reactor. The surface morphol

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Baumann, Delphine. "Synthèse d'inhibiteurs potentiels de glycosidases et d'urées cycliques de conformation restreinte." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2007. http://tel.archives-ouvertes.fr/tel-00718540.

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Nous avons réalisé la synthèse de nouvelles indolizidines polyhydroxylées, analogues de la swainsonine, inhibiteurs potentiels de glycosidases et d'urées cycliques de conformation restreinte portées par une pipéridine, agents permettant de contrôler la prolifération de cellules tumorales. Ces deux familles de composés ont été préparées à partir d'une pipéridine clé, obtenue par réaction de Mannich intramoléculaire entre le trans-4-oxo-buténoate d'éthyle et une bétâ-aminocétone protégée sous forme d'acétal. Dans un premier temps, nous avons synthétisé une indolizidine tri-hydroxylée en série ra

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Nobel, Dominique. "Coordinats fonctionnels en chimie des metaux de transition : synthese et reactivite, application a la telomerisation catalytique du butadiene et du dioxyde de carbone." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13109.

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Ergun, Merve. "Development Of New Synthetic Methodologies For Furan Fused Heterocycles." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615337/index.pdf.

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Furopyranones and furopyrrolones are furan-fused bicyclic heterocycles containing pyranone and pyrrolone framework respectively. Many natural products and pharmaceutical agents include these core structures. In this study, new synthetic methodologies were developed for the synthesis of furopyranone and furopyrrolone derivatives. In the first section of this thesis, methyl 2-(2-methoxy-2-oxoethyl)-3-furoate was hydrolyzed forming 2-(carboxymethyl)-3-furoic acid which underwent intramolecular cyclization reaction using two different methodologies forming furopyranone derivatives. In the second p

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Kilikli, Ahmet Alper. "Development Of New Synthetic Methodologies For Indole Derivatives: Chemistry Of Homophthalic Acid." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611521/index.pdf.

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Synthesizing nitrogen containing heterocyclic compounds is one of the leading research areas throughout the organic chemistry due to their significant activities on biological systems. Among the various biologically active molecules, indole derivatives are of prime importance on the grounds of their proven clinical roles. Objective of this study is to synthesize new indole derivatives those may contribute treatment of several diseases like their analogues via a recently developed synthetic methodology. Besides this, another objective is to observe and discuss effects of two different substitue

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Books on the topic "Organic isocyanates"

1

Great Britain. Health and Safety Executive. Occupational Medicine and Hygiene Laboratory. Organic isocyanates in air: Laboratory method using 1-(2-methoxyphenyl) piperazine solution and high performance liquid chromatography. HSE Books, 1994.

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Occupational Medicine and Hygiene Laboratory. Organic isocyanates in air: Laboratory method using 1-(2-methoxyphenyl) piperazine solution and high performance liquid chromatography. Health and Safety Executive, 1987.

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Organic Isocyanates in Air (MDHS). Health and Safety Executive (HSE), 1994.

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4

Chemistry of Chlorosulfonyl Isocyanate. World Scientific Publishing Co Pte Ltd, 2002.

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Chemistry of Chlorosulfonyl Isocyanate. World Scientific Publishing Co Pte Ltd, 2002.

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The Chemistry of Chlorosulfonyl Isocyanate. World Scientific Publishing Company, 2002.

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executive, Health and safety. Organic Isocyanates in Air (Methods for the Determination of Hazardous Substances). Health and Safety Executive (HSE), 1998.

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executive, Health and safety. Organic Isocyanates in Air (Methods for the Determination of Hazardous Substances). Health and Safety Executive (HSE), 1987.

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Organic isocyanates in air: Laboratory method using sampling either onto 1-(2-methoxypheny)piperazine coated glass fibre filters followed by solvent desorption or into impingers and analysis using high performance liquid chromatography. HSE Books, 1999.

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Book chapters on the topic "Organic isocyanates"

1

Cenini, Sergio, and Fabio Ragaini. "Synthesis of Isocyanates." In Catalytic Reductive Carbonylation of Organic Nitro Compounds. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-0986-6_2.

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Turner, G. P. A. "Organic chemistry: ethers to isocyanates." In Introduction to Paint Chemistry and Principles of Paint Technology. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1209-0_4.

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Bentley, J., and G. P. A. Turner. "Organic chemistry ethers to isocyanates." In Introduction to Paint Chemistry and principles of paint technology. Springer US, 1998. http://dx.doi.org/10.1007/978-1-4899-3180-1_4.

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Turner, G. P. A. "Organic chemistry: ethers to isocyanates." In Introduction to Paint Chemistry and Principles of Paint Technology. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4899-6836-4_4.

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McGhee, William D., Mark Paster, Dennis Riley, Ken Ruettimann, John Solodar, and Thomas Waldman. "Generation of Organic Isocyanates from Amines, Carbon Dioxide, and Electrophilic Dehydrating Agents." In ACS Symposium Series. American Chemical Society, 1996. http://dx.doi.org/10.1021/bk-1996-0626.ch004.

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"Isocyanates, Organic." In A Comprehensive Guide to the Hazardous Properties of Chemical Substances. John Wiley & Sons, Inc., 2006. http://dx.doi.org/10.1002/9780470134955.ch28.

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Mukaiyama, Teruaki. "Pyrolysis." In Challenges in Synthetic Organic Chemistry. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198556442.003.0004.

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Abstract Dehydration of hydroxamic acid gives isocyanates by a rearrangement reaction. Although this process was well known as the Lassen rearrangement, it was often difficult to isolate the resultant isocyanates when common dehydrating agents were used. Among numerous such reagents, only phosgene, thionyl chloride, etc. allowed isolation of isocyanates from the reaction mixture. However, I still thought that it would be possible to isolate them by reaction with some of the dehydration agents noted in Chapter 2, e.g. alkoxyacetylene or ketene acetal as illustrated in eqns (3.1) and (3.2), and

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Mukaiyama, Teruaki. "Dehydration reactions." In Challenges in Synthetic Organic Chemistry. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198556442.003.0003.

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Abstract Ureas and urethanes dissociate on heating into two components; isocyanates and amines, and isocyanates and alcohols, respectively (eqn (2.1)). Analysis of the rate of these thermal dissociation reactions allows us to conclude that ureas and urethanes dissociate via a ‘termolecular’ reaction mechanism.1 After all, ureas and urethanes can be viewed as addition products of isocyanates with amines and with alcohols, respectively. One of their analogues is a class of amides having an electron-withdrawing substituent at the a-carbon of their carbamoyl group. On heating, these amides are als

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Mukaiyama, Teruaki. "Ring-opening polymerization." In Challenges in Synthetic Organic Chemistry. Oxford University PressOxford, 1990. http://dx.doi.org/10.1093/oso/9780198556442.003.0005.

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Abstract In Chapter 3, I have described the chemistry in which compounds with cumulated double bonds (X=Y=Z) or an unsaturated carbon-carbon bond (e.g. isocyanate, carbodiimide, alkoxyacetylene, vinyl ether, and ketene acetal) undergo reaction with aldoximes, primary nitroalkanes, hydroxamic acids, etc. to give intramolecular dehydration products (e.g. nitriles, nitrile oxides, isocyanates, etc.) in high yields. In order to broaden the scope of such dehydration reactions, we examined the dehydration of aldoximes with diethyl N-phenyliminocarbonate, which can be regarded as the acetal of isocya

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Brusky, P. L., J. H. Kyung, and R. A. Grimm. "Production of Low-Cost Aliphatic Isocyanates." In Catalysis of Organic Reactions. CRC Press, 2020. http://dx.doi.org/10.1201/9781003067184-33.

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Conference papers on the topic "Organic isocyanates"

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Wuehrer, Karl H., and Renee Bynum. "Chemical Resistant Waterborne Polyurethane Topcoats for Flooring." In Paint and Coatings Expo (PACE) 2005. SSPC, 2005. https://doi.org/10.5006/s2005-00064.

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Abstract This paper gives an update on the latest developments of the new generation of waterborne Polyurethane Topcoats (PU topcoats) for flooring which were presented during the annual SSPC meeting October 20031. Topcoats are commonly used in the construction industry over functional floor coatings or as sealers for concrete. For many years solvent-borne polyurethane topcoats are the standard for flooring due to very good properties, mechanical and chemical, and application ease-of-use. However, the significant amounts of solvent act as volatile organic compounds (VOCs) and change in the VOC

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Kolody, Mark R., Jerome P. Curran, and Luz Marina Calle. "A Five-Year Performance Study of Low VOC Coatings over Zinc Thermal Spray for the Protection of Carbon Steel at the Kennedy Space Center." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3819.

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Abstract The launch facilities at the Kennedy Space Center (KSC) are located approximately 1000 feet from the Atlantic Ocean where they are exposed to salt deposits, high humidity, high UV degradation, and acidic exhaust from solid rocket boosters. These assets are constructed from carbon steel, which requires a suitable coating to provide long-term protection to reduce corrosion and its associated costs. While currently used coating systems provide excellent corrosion control performance, they are subject to occupational, safety, and environmental regulations at the Federal and State levels t

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Adams, David, and J. B. Conant. "How a Single Coat, Non-Hazardous Epoxy Saves Charlotte Water Money in the Long Run." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17988.

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Abstract The McAlpine Creek Wastewater Management Facility (MCWWMF) is the largest wastewater treatment facility operated by Charlotte Water (CLTWater). In 2018, CLTWater began a Reliability and Process Improvements project. The project involved the rehabilitation of 16 secondary concrete clarifiers that ranged from 95 to 150 feet in diameter, with the oldest clarifiers being nearly 60 years old. CLTWater considered an epoxy coating. However, they historically ran into issues with failures of delamination. Thus, they opted to move forward with a pilot study with four different epoxy manufactur

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Akram, Deewan, Eram Sharmin, and Sharif Ahmad. "Biohybrid Silver Nanocomposites as Antimicrobial Corrosion Protective Coating Materials." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01739.

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Abstract Organic-inorganic hybrid polyurethane silver nanocomposite (Ag/LPOSiPU) were prepared in three steps- (i) synthesis of organic-inorganic hybrids (LPOSi) from linseed oil polyol (LPO) as organic and tetraethoxyorthosilane (TEOS) as inorganic precursors, respectively through sol-gel process, (ii) preparation of silver nano-particles in organic-inorganic hybrids (LPOSi) via reduction of silver salt (AgNO3) by employing N,N_-dimethylformamide (DMF) as reducing agent at room temperature to obtain Ag/LPOSi, and (iii) Ag/LPOSi further treated with toluene 2,4 di-isocyanate to form their poly

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Schall, Donald C. "New High Solids Acrylic Technologies for High Performance Topcoats: Alternatives to Acrylic Urethane Coatings." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90553.

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Abstract Acrylic urethanes have set a standard for high performance topcoats by virtue of their long lasting resistance and appearance properties. Such a high level of performance has made acrylic urethanes attractive to an ever increasing share of various coatings markets, including maintenance coatings. Naturally, this technology is not without its shortcomings, not the least of which are the health concerns associated with the isocyanate resins (HDI prepolymers) used in these coatings. These urethane paint vapors and mists can irritate the respiratory tract and repeated overexposure can lea

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Vogel, Erin, Gary Wieber, Adam Tomasik, and Yanxiang Li. "Highly Durable Solventborne Silicone Organic Hybrid for Protective Coating Applications." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17537.

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Abstract In high-performance protective coating applications, traditional systems often require three distinct layers of different composition/formulation for optimal protection of the structure against degradation. Polyurethane topcoats have been widely used as high performance and durable coatings in these applications; however, they typically contribute little to corrosion protection and therefore are not useful as primers. In these applications, a two-coat system providing similar performance as the three-coat system would yield labor and material savings as well as reduced environmental i

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Andrews, Adrian F. "Polysiloxane Topcoats - a Step Too Far?" In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05007.

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Abstract Polysiloxanes technology introduced to the Protective Coatings market in the mid to late 1990’s is a relatively new innovation, providing highly weatherable, low VOC, isocyanate-free topcoats. There are a number of commercially available polysiloxane finish products formulated, using different organic modifications necessary, to provide the required performance product attributes. New products to date are necessarily introduced to the market relatively quickly (5-10 years), based on a raft of laboratory and external test protocols, which attempt to correlate these results with real ti

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Montag, Petr, and Alena Kalendova. "INVESTIGATION OF RECYCLED POLYOL PRODUCED FROM SEMI-RIGID POLYURETHANE FOAM OUTSOURCED FROM THE AUTOMOTIVE INDUSTRY." In 23rd SGEM International Multidisciplinary Scientific GeoConference 2023. STEF92 Technology, 2023. http://dx.doi.org/10.5593/sgem2023/4.1/s18.22.

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Polyurethane, as a versatile polymer prepared by the polyaddition of isocyanates and hydroxyl group containing compounds, is widely used in the automotive industry and with an upcoming change of European legislation becomes recycling increasingly important as an alternative to landfilling or incineration. Glycolysis is one of the chemical degradation processes used to transform polyurethane waste using simple glycols as the degradation agents into a raw material. Single phase glycolysis was used to produce recycled polyol from polyurethane semi-rigid foam dedicated for headliner production. Th

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Maier, Vasilica, Tudorel Bălău Mîndru, Dan Roşu, Alexandra Irina Crudu, and Stelian Sergiu Maier. "Isocyanate-Functionalized Collagen Hydrolysates as Pretanning Agents for Organic Wet-White Leather." In The 6th International Conference on Advanced Materials and Systems. INCDTP - Division: Leather and Footwear Research Institute, Bucharest, RO, 2016. http://dx.doi.org/10.24264/icams-2016.iv.5.

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Francis, Cecil V., Kenneth M. White, Gary T. Boyd, Robert S. Moshrefzadeh, and Elisa M. Cross. "Isocyanate Cross-linked Polymers for Nonlinear Optics: Polymers Derived From 3-amino-5-[4'-(N-ethyl-N-2"-hydroxyethyl)aminobenzylidene]rhodanine." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/otfa.1993.wa.6.

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Abstract:

Recently we reported the incorporation of a novel difunctional nonlinear optical (NLO) molecule, 3-amino-5-[4′-(N-ethyl-N-2″-hydroxyethyl)aminobenzylidene]-rhodanine (I), into a poled, cross-linked polymer by the stepwise reaction of different functionalities with a trifunctional comonomer.1 The difference in reactivity between the two functional groups on the molecule allows a stepwise reaction; first, oligomers are formed which are processed into optical quality films, and second, reaction conditions are changed while applying the electric field to induce reaction of the second functionality

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Reports on the topic "Organic isocyanates"

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Adam, Alexandre, Saadane Rezaiguia, Romain Severac, and Michel Bouquey. Incorporation of aminoalcohols to tune the properties of polyurethane systems. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.gs.ps.1.

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Abstract:

It is common practice to incorporate low molecular weight molecules, known as chain extenders, to enhance the performance of polyurethane (PU) material. They usually increase the phase separation between the soft and hard domains, which has a significant impact on the density of hydrogen bonds. Aminoalcohols, molecules with both hydroxyl and amine functional groups, are important building blocks in the synthesis of pharmaceuticals but are also widely used in cosmetics or paints and coatings. Easily derived from abundant natural sources, such as amino acids, aminoalcohols align with the need fo

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