Results 31 to 40 of about 33,147 (342)

Combining uretdione and disulfide reversibly degradable polyurethanes : route to alternating block copolymers [PDF]

, 2018
Uretdione (temperature and catalyst controlled) and disulphide (REDOX controlled) functionalised polyurethanes have been described and the reversibility of these bonds tested.
Day, Roger, Haddleton, David M., Makal, Umit, Summers, Christopher J.   +3 more
core   +1 more source

Method of neutralizing the corrosive surface of amine-cured epoxy resins [PDF]

, 1982
The corrosive alkaline surface layer of an epoxy resin product formed by the curing of the epoxy with an aliphatic amine is eliminated by first applying a non-solvent to remove most or all of the free unreacted amine and then applying a layer of a ...
Lee, S. Y.
core   +1 more source

Pd-Catalyzed Cycloaddition of Bicyclic Aziridine with Isocyanates

Medical Sciences Forum, 2022
Nitrogen-containing heterocycles can have several applications in the pharmaceutical industry since they contain a wide spectrum of biological activities. Imidazolidinones have shown activity against leukemia, lung cancer, and metabolic disorders.
Mariana Crespo Monteiro, Carlos A. M. Afonso, Filipa Siopa   +2 more
doaj   +1 more source

Hydrogen‐Bond‐Rich Supramolecular Multiblock Copolymers Facilitate Rapid Zn2+ Migration in Quasi‐Solid‐State Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
The disordered growth of dendrites, corrosion, parasitic side reactions, slow de‐solvation kinetics, and inherent safety risks significantly hinder the practical deployment of conventional liquid electrolyte zinc‐ion batteries. In contrast, the novel PU‐EG+DMPA‐Zn polyurethane quasi‐solid‐state electrolyte, enriched with abundant polar functional ...
Ruiqi Liu, Changding Wang, Fu Wan, Kaida Hu, Da Yang, Yaoyang Xia, Wenwei Yin, Yupeng Lin, Yuejiao Chen, Shuhui Sun, Weigen Chen   +10 more
wiley   +1 more source

Fractionation of CIMV wheat straw lignin as an approach for promoting it interaction with isocyanates and characteristic of products obtained [PDF]

, 2012
The reactivity of CIMV lignin fractions with MDI has been investigated in extra dry dioxane (DOX) in argon atmosphere at 25 degrees of Celsius, using FTIR spectroscopy (absorbance band at 2273 cm^-1) for monitoring the NCO group disappearance during ...
Arshanitsa, Alexandr, Gosselink, Richard, Krumina, Lelde, Telysheva, Galina, van der Putten, Jacinta   +4 more
core  

Formation of 1-aza-2-silacyclopentanes and unexpected products from the insertion of phenylisocyanate into 2,2-dimethyl-1-(trimethylsilyl)-1-aza-2-silacyclopentane

Main Group Metal Chemistry, 2018
Substances like 3-aminopropyltriethoxysilane are often used as adhesive promoters in various formulations for coatings or to adjust the properties of siloxanes and other polymers.
Herbig Marcus, Böhme Uwe, Schwarzer Anke, Kroke Edwin   +3 more
doaj   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Catalysts for polyimide foams from aromatic isocyanates and aromatic dianhydrides [PDF]

, 1979
Polyimide foam products having greatly improved burn-through and flame-spread resistance are prepared by the reaction of aromatic polyisocyanates with aromatic dianhydrides in the presence of metallic salts of octoic acid. The salts, for example stannous
Estrella, C. A., Riccitiello, S. R., Sawko, P. M.   +2 more
core   +1 more source

The solvation and dissociation of 4-benzylaniline hydrochloride in chlorobenzene [PDF]

, 2014
A reaction scheme is proposed to account for the liberation of 4-benzylaniline from 4-benzylaniline hydrochloride, using chlorobenzene as a solvent at a temperature of 373 K.
Alice A. Miller, Amrute A. P., Archie Eaglesham, Badawi H., Ball D. W., Brock F. H., Burkus J., Cavani F., David Adam, David Lennon, Di Giacomo A., Ding J., Dunlap K. L., Emma K. Gibson, Fogg P. G. T., Freeman R., Frost A. A., Gibson E. K., Gibson E. K., Guéron M., Hevia M. A. G., John M. Winfield, Khairuzzaman A., López N., Mitchell C. J., Mondelli C., Over H., Randall D., Richter R. H., Robert H. Carr, Serajuddin A. T. M., Silkov A. A., Sun S., Sutherland I. W., Tebutt P., Ulrich H., Ulrich H., Yang P. F., Zhang T., Zhang T., Zhang T.   +40 more
core   +1 more source

Novel tetrahydronaphthalen-1-yl-phenethyl ureas: synthesis and dual antibacterial-anticancer activities

Journal of Enzyme Inhibition and Medicinal Chemistry
Cancer and antibiotic-resistant bacterial infections are significant global health challenges. The resistance developed in cancer treatments intensifies therapeutic difficulties.
Yusuf Akbaba, Fatma Necmiye Kacı, Mehmet Enes Arslan, Süleyman Göksü, Adil Mardinoğlu, Hasan Türkez   +5 more
doaj   +1 more source