Category: 2212-32-0

Tagiuri, Ali published the artcileDissociation Constant (pKa) and Thermodynamic Properties of Some Tertiary and Cyclic Amines from (298 to 333) K, Computed Properties of 2212-32-0, the main research area is dissociation constant thermodn property tertiary cyclic amine.

The potentiometric titration method was used to measure pKa values of nine amines [2-(diisopropylamino)ethanol [2-DIPA], N,N,N’,N’-tetrakis(2-hydroxypropyl)ethylenediamine [THPEDA], 2-{[2-(dimethylamino) ethyl]methyl amino} ethanol [2-DMAEMAE], tris[2-(2-methoxyethoxy)ethyl]amine [TMEEA], N-(2-hydroxyethyl) aniline [2-HEAN], 1-(2-hydroxyethyl)piperazine [HEP], piperazine [PZ], monoethanolamine [MEA], and N-methyldiethanolamine [MDEA] at (298.15, 303.15, 313.15, 323.15, and 333.15) K. pKa values of the last three amines were compared with published data to validate the procedure and assess the accuracy of the instrument. Thermodn. quantities, such as standard enthalpy (ΔH°·kJ-1·mol-1) and entropy (ΔSo·kJ-1·mol-1) for the dissociation process, were determined at 298.15 K using the van’t Hoff equation. From the exptl. results, the values of the standard state thermodn. properties were derived and compared to the values of com. available amines used as absorbents for CO2 capture. Among the studied amines, 2-DMAEMAE was identified as having a high pKa (9.18) and lower heat of dissociation than MEA (27.77 kJ/mol, as compared to 48.59 kJ/mol for MEA) and can therefore be considered a potential candidate for CO2 capture applications.

Journal of Chemical & Engineering Data published new progress about Basicity. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Computed Properties of 2212-32-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Burridge, Kevin M. published the artcileSimple derivatization of RAFT-synthesized styrene-maleic anhydride copolymers for lipid disk formulations, Category: alcohols-buliding-blocks, the main research area is RAFT styrene maleic anhydride copolymer nucleophile derivative lipid disk.

Styrene-maleic acid copolymers have received significant attention because of their ability to interact with lipid bilayers and form styrene-maleic acid copolymer lipid nanoparticles (SMALPs). However, these SMALPs are limited in their chem. diversity, with only Ph and carboxylic acid functional groups, resulting in limitations because of sensitivity to low pH and high concentrations of divalent metals. To address this limitation, various nucleophiles were reacted with the anhydride unit of well-defined styrene-maleic anhydride copolymers in order to assess the potential for a new lipid disk nanoparticle-forming species. These styrene-maleic anhydride copolymer derivatives (SMADs) can form styrene-maleic acid derivative lipid nanoparticles (SMADLPs) when they interact with lipid mols. Polymers were synthesized, purified, characterized by Fourier-transform IR spectroscopy, gel permeation chromatog., and NMR and then used to make disk-like SMADLPs, whose sizes were measured by dynamic light scattering (DLS). The SMADs form lipid nanoparticles, observable by DLS and transmission electron microscopy, and were used to reconstitute a spin-labeled transmembrane protein, KCNE1. The polymer method reported here is facile and scalable and results in functional and robust polymers capable of forming lipid nanodisks that are stable against a wide pH range and 100 mM magnesium.

Biomacromolecules published new progress about Liposomes. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lessard, Roger A. published the artcilePhotopolymers in optical computing: materials and devices, Related Products of alcohols-buliding-blocks, the main research area is optical computing photopolymer material; dyed gelatin polyvinyl alc image processing.

The applications of dyed gelatin and poly(vinyl alc.) for non-Fourier image processing are described. Examples of contrast reversal, edge enhancement, character recognition and addition and subtraction of images using dyed gelatin films are presented. Dyed poly(vinyl alc.) has been used in an optical correlator for the detection of cross correlation peak which can serve as an input for a neural network.

Proceedings of SPIE-The International Society for Optical Engineering published new progress about Computers. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wong, Shaio Wen published the artcileCatalysis in competing isocyanate reactions, COA of Formula: C7H18N2O, the main research area is phenyl isocyanate butanol esterification kinetics; dipropylenetriamine catalyst isocyanate butanol esterification; organotin catalyst isocyanate butanol esterification; amine catalyst isocyanate butanol esterification.

The effects of various organotin and tertiary amine catalysts on the product distributions in the esterification of Ph isocyanate (I) [103-71-9] with n-BuOH (II) [71-36-3] as model reaction for the preparation of polyurethanes were determined The esterification in the presence of N,N,N’,N’,N”-pentamethyldipropylenetriamine (III) [66537-05-1] catalyst in MeCN at 50° was first order with respect to I and III concentrations and half order with respect to II concentration with an apparent activation energy of 22.9 kcal/mol. Tri-Ph isocyanurate (IV) [1785-02-0], Bu phenylcarbamate  [1538-74-5], and Bu α,γ-diphenylallophanate  [21367-12-4] were formed by the reaction with IV being the major reaction product. The presence of H2O delayed the reaction rate and inhibited the formation of IV.

Polimeri (Zagreb, Croatia) published new progress about Cyclization. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, COA of Formula: C7H18N2O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Okuzono, Shuichi published the artcileNew polyisocyanurate catalysts which exhibit high activity at low temperature, Application In Synthesis of 2212-32-0, the main research area is quaternary ammonium catalyst polyisocyanurate foam manufacture.

In polyisocyanurate foam production, alkali metal catalysts of organic carboxylic acids and hydroxyalkyltrimethyl quaternary ammonium salts are traditional standards as polyisocyanurate foam catalysts. The activity of these catalysts, however, is not efficient at low temperature The combination of other tertiary amine catalysts could improve the flowability; however, the flammability of the foam would be a hazard because the isocyanurate reaction has not fully progressed. For the improvement of the above-mentioned problems, Tosoh Corp. has developed several new quaternary ammonium salt compounds, such as Toyocat-TR20. TR20, however, should be used in conjunction with an alkali metal co-catalyst. Presently, Tosoh has succeeded in developing another new catalyst having even higher catalytic activity at low temperature, which can replace the use of the alkali metal catalyst. The new catalyst provides the low temperature dependency in the isocyanurate reaction activity compared to the traditional isocyanurate catalysts. The new catalyst provides the following advantages. The catalytic activity is high. The isocyanurate reaction activity at low temperature is high. The initial foaming reaction is improved, thereby the rise profile is now smooth. In this report, new quaternary ammonium salts will be introduced with comparison data using the FT-IR anal. methods, as well as the evaluation in panel and sprayed foams.

Journal of Cellular Plastics published new progress about Flammability. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Application In Synthesis of 2212-32-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bermejo, Jesus F. published the artcileWater-soluble carbosilane dendrimers: synthesis, biocompatibility and complexation with oligonucleotides; evaluation for medical applications, Related Products of alcohols-buliding-blocks, the main research area is carbosilane dendrimer biocompatibility oligonucleotide plasmid gene delivery.

Novel amine- or ammonium-terminated carbosilane dendrimers of type nG-[Si{OCH2(C6H3)-3,5-(OCH2CH2NMe2)2}]x, nG-[Si{O(CH2)2N(Me)(CH2)2NMe2}], and nG-[Si{(CH2)3NH2}]x or nG-[Si{OCH2(C6H3)-3,5-(OCH2CHNMe3+I-)2}]x, nG-[Si{O(CH2)2N(Me)(CH2)2NMe3+I-}]x, and nG-[Si{(CH2)3NH3+Cl-}]x have been synthesized and characterized up to the third generation by two strategies: (1) alcoholysis of Si-Cl bonds with amino alcs. and subsequent quaternization with MeI, and (2) hydrosilylation of allylamine with Si-H bonds of the dendritic systems and subsequent quaternization with HCL. Quaternized carbosilane dendrimers are soluble in water, although degradation is apparent due to hydrolysis of Si-O bonds. However, dendrimers containing Si-C bonds are water-stable. The biocompatibility of the second-generation dendrimers in primary cell cultures of peripheral blood mononuclear cells (PBMCs) and erythrocytes have been analyzed, and they show good toxicity profiles over extended periods. In addition, we describe a study on the interactions between the different carbosilane dendrimers and DNA oligodeoxynucleotides (ODNs) and plasmids along with a comparative anal. of their toxicity. They can form complexes with DNA ODNs and plasmids at biocompatible doses via electrostatic interaction. Also a preliminary transfection assay has been accomplished. These results demonstrate that the new ammonium-terminated carbosilane dendrimers are good base mols. to be considered for biomedical applications.

Chemistry – A European Journal published new progress about Biocompatibility. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Jiang, Xiong-Jie published the artcileA pH-responsive fluorescence probe and photosensitiser based on a tetraamino silicon(IV) phthalocyanine, Recommanded Product: N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, the main research area is pH responsive fluorescence probe photosensitizer tetraaminosilicon phthalocyanine.

A novel tetraamino silicon(IV) phthalocyanine has been prepared, of which the fluorescence emission and reactive oxygen species generation efficiency are greatly enhanced at lower pH in the range of ∼5-7, making it a promising pH-controlled and tumor-selective fluorescence probe and photosensitizer for photodynamic therapy.

Chemical Communications (Cambridge, United Kingdom) published new progress about Antitumor agents. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Recommanded Product: N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hubert-Pfalzgraf, Liliane G. published the artcileCerium(IV) alkoxides with functional alcohols: synthesis and molecular structure of Ce2(O-iso-Pr)6(μ-OC2H4NMeC2H4NMe2)2, Computed Properties of 2212-32-0, the main research area is crystal structure cerium aminoethylaminoethanolato propoxo polynuclear; cerium aminoethylaminoethanolato propoxo polynuclear; ethanolato aminoethylamino cerium propoxo complex.

Reaction between [Ce(OCHMe2)4]m and the functional aminoalc. HOCH2CH2NMeCH2CH2NMe2 (HL) in different stoichiometries gave high yields of Ce2(OCHMe2)6L2 (1) and Ce3O4(OCHMe2)2L2 (2). 1 Which was characterized by x-ray diffraction is a centrosym. dimer in which all isopropoxo groups are terminal (Ce-O 2.130 Å average, < Ce-O-C 161.3°), while the functional alc. acts as a bridging chelating tridentate ligand, leading to heptacoordination of the metal. Polyhedron published new progress about Crystal structure. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Computed Properties of 2212-32-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kamatani, Yoshio published the artcileReaction of an oxadiazinetrione derivative and its application to polyurethane coatings, Related Products of alcohols-buliding-blocks, the main research area is oxadiazinetrione reaction isocyanate amine catalyst; crosslinker oxadiazinetrione derivative polyurethane coating.

Tertiary amines were used as catalysts for the reaction of oxadiazinetrione (I) and primary hydroxyl groups and comparable reactivities of NCO groups and I were easily obtained. I derivatives of hexamethylene diisocyanate were useful as hardeners for polyurethane coatings curable at ambient temperature Coating compositions prepared from I prepolymers and polyols showed short drying and hardening time and low curing temperature The coating film had good phys. and chem. properties.

Journal of Coatings Technology published new progress about Coating materials. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kamatani, Yoshio published the artcileReaction of an oxadiazinetrione derivative and its application to polyurethane coatings, SDS of cas: 2212-32-0, the main research area is isocyanate oxadiazinetrione derivative crosslinker; amine catalyst urethane formation; phosphine catalyst urethane formation; lead octanoate catalyst; polyurethane coating crosslinking agent.

In the reaction of 3,5-bis(6-isocyanatohexyl)-2H-1,3,5-oxadiazine-2,4,6(3H,5H)-trione (I) [50639-37-7] with H(OCH2CH2)2OMe [111-77-3] in solution at 70°, tertiary amines, Bu3P, and Pb octanate were good catalysts, giving conversions of 87-100%. In the reaction of I with Bu methacrylate-hydroxyethyl methacrylate-iso-Bu methacrylate-styrene copolymer  [77402-19-8] to give a coating, tertiary amines were suitable catalysts. In curing polyurethane coatings at relative humidity (RH) 0% and 50%, I is a little more reactive than tris(6-isocyanatohexyl)biuret (II), and the dependence of I reactivity on RH is smaller than that of II. Coatings from I-based polyurethanes had good curability in early stages, while those from II- and tris(6-isocyanatohexyl)isocyanurate-based polyurethanes required 2-3 times longer to attain the same hardness.

Polymeric Materials Science and Engineering published new progress about Coating materials. 2212-32-0 belongs to class alcohols-buliding-blocks, name is N2-(2-Hydroxyethyl)-N1,N1,N2-trimethyl-1,2-ethylenediamine, and the molecular formula is C7H18N2O, SDS of cas: 2212-32-0.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts