Tag: 200-300

A fluorinated polycarbonate based all solid state polymer electrolyte for lithium metal batteries was written by Wang, Qinglei;Liu, Xiaochen;Cui, Zili;Shangguan, Xuehui;Zhang, Huanrui;Zhang, Jianjun;Tang, Kun;Li, Longshan;Zhou, Xinhong;Cui, Guanglei. And the article was included in Electrochimica Acta in 2020.Related Products of 102-09-0 The following contents are mentioned in the article:

Poly(ethylene oxide) (PEO) is a promising matrix for solid polymer electrolyte, but its inferior mech. strength and relative low oxidation stability especially at elevated temperatures hamper its further applications. A novel fluorinated polycarbonate polymer of poly(2,2,3,3-tetrafluoro Bu carbonate) with cyano ends (cPTFBC) was synthesized for the 1st time and was composited with PEO based electrolyte by phys. blending to resolve the above issues. The addition of cPTFBC can effectively enhance the mech. strength at elevated temperature The as-prepared PEO-cPTFBC based electrolyte shows an enlarged electrochem. window up to 4.7 V at 60° and a high Li ion transference number (0.33). More importantly, the PEO-cPTFBC based all solid state polymer electrolyte presents excellent compatibility with Li metal and improved LiCoO₂/Li battery performance compared with PEO based electrolyte. These outstanding performance of the cPTFBC based electrolyte make it promising as solid polymer electrolyte for Li metal batteries. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Related Products of 102-09-0).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Related Products of 102-09-0

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

A stereocontrolled synthesis of Z and E terminal dienes from pinacol E-1-trimethylsilyl-1-propene-3-boronate was written by Tsai, David Jieh Shyh;Matteson, Donald S.. And the article was included in Tetrahedron Letters in 1981.Application of 50767-78-7 The following contents are mentioned in the article:

Treatment of the pinacol boronate I with RCHO [II; R = Ph, (CH₂)₆Me, (CH₂)₈OAc] followed by cleavage of the boronate, gave 3-silyl-4-hydroxy-1-alkenes, which were deoxysilylated stereoselectively to give Z– or E-1,3-dienes in â‰?8% isomeric yield. Thus, AcO(CH₂)₈CH(OH)CH(SiMe₃)CH:CH₂ (III), prepared from I and II [R = (CH₂)₈OAc] in 92% yield, was treated with KH in THF (10 min) followed by aqueous NaHCO₃ to give 85% Z-AcO(CH₂)₈CH:CHCH:CH₂ (Z–IV). Treatment of III with H₂SO₄ in THF (10 min) followed by aqueous NaHCO₃ gave 88% E–IV. The sex pheromone of Disparopsis castanea is a 20/80 mixture of Z– and E–IV. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Application of 50767-78-7).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application of 50767-78-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Capsules from synthetic diblock-peptides as potential artificial oxygen carriers was written by Feng, Huayang;Linders, Juergen;Myszkowska, Sascha;Mayer, Christian. And the article was included in Journal of Microencapsulation in 2021.Application In Synthesis of Diphenyl carbonate The following contents are mentioned in the article:

The design of an encapsulation system consisting of a synthetic peptide which is fully biodegradable into non-toxic constituents. This system should be capable of encapsulating perfluorinated hydrocarbons and should be a promising basis for oxygen carriers to be used as artificial blood replacement. A diblock-peptide is synthesized following a phosgene-free method and characterised by ¹H-NMR. Subsequently, this diblock-peptide is self-assembled with perfluorodecalin (PFD) to form PFD-filled capsules as potential artificial oxygen carriers allowing for rapid oxygen uptake and release. The diblock-peptide Bu-PAsp₁₀-PPhe₁₀ is successfully synthesized and used to encapsulate PFD. The capsules have a spherical shape with an average diameter of 360 nm in stable aqueous dispersion. NMR measurements prove their phys. capability for reversible uptake and release of oxygen. The resulting capsules are expected to be fully biodegradable and possibly could act as oxygen carriers for artificial blood replacement. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Application In Synthesis of Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application In Synthesis of Diphenyl carbonate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tuning Surface Properties of Poly(methyl methacrylate) Film Using Poly(perfluoromethyl methacrylate)s with Short Perfluorinated Side Chains was written by Sohn, Eun-Ho;Ha, Jong-Wook;Lee, Soo-Bok;Park, In Jun. And the article was included in Langmuir in 2016.Name: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate The following contents are mentioned in the article:

To control the surface properties of a commonly used polymer, poly(Me methacrylate) (PMMA), poly(perfluoromethyl methacrylate)s (PFMMAs) with short perfluorinated side groups (i.e., -CF₃, -CF₂CF₃, -(CF₃)₂, -CF₂CF₂CF₃) were used as blend components because of their good solubility in organic solvents, low surface energies, and high optical transmittance. The surface energies of the blend films of PFMMA with the -CF₃ group and PMMA increased continuously with increasing PMMA contents from 17.58 to 25.97 mN/m, whereas those of the other polymer blend films remained at low levels (10.24-12.59 mN/m), similar to those of pure PFMMAs, even when the blends contained 90 weight% PMMA. Surface morphol. and composition measurements revealed that this result originated from the different blend structures, such as uniform distribution and vertical phase separation We expect that these PFMMAs will be useful in widening the applicable window of PMMA. This study involved multiple reactions and reactants, such as 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3Name: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate).

1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Name: 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Effect of Zr-doping on Pd/Ce_xZr_1-xO₂ catalysts for oxidative carbonylation of phenol was written by Zhou, Lichao;Feng, Gang;Liu, Xiaojing;Wang, Zhimiao;Li, Fang;Xue, Wei;Wang, Yanji. And the article was included in Chinese Journal of Chemical Engineering in 2020.COA of Formula: C13H10O3 The following contents are mentioned in the article:

Ce-Zr solid solution (Ce_xZr_1-xO₂, CZO) was prepared by the citric acid sol-gel method. The CZO was then used as a support for Pd/CZO catalysts for the oxidative carbonylation of phenol to di-Ph carbonate. The Pd/CZO catalyst showed enhanced activity and di-Ph carbonate selectivity compared with the Pd/CeO₂ catalyst. The catalytic performance of Pd/CZO was influenced by the calcination temperature of the CZO support. X-ray diffraction, SEM, N₂ adsorption-desorption measurements, XPS and H₂ temperature-programmed reduction measurements were used to investigate the effects of Zr doping and calcination temperature The catalytic performance of Pd/CZO and Pd/CeO2 for the oxidative carbonylation of phenol was affected by several factors, including the sp. surface area, Ce³⁺ and/or oxygen vacancy content, oxygen species type and Pd (II) content of the catalyst. All these properties were influenced by Zr doping and the calcination temperature of the CZO support. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0COA of Formula: C13H10O3).

Diphenyl carbonate (cas: 102-09-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.COA of Formula: C13H10O3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Infant Exposure to Emissions of Volatile Organic Compounds from Crib Mattresses was written by Boor, Brandon E.;Jarnstrom, Helena;Novoselac, Atila;Xu, Ying. And the article was included in Environmental Science & Technology in 2014.HPLC of Formula: 5444-75-7 The following contents are mentioned in the article:

Infants spend most of their time sleeping and are likely to be exposed to elevated concentrations of chems. released from crib mattresses. Small-scale chamber experiments were conducted to determine area-specific emission rates (SER) of volatile organic compounds (VOC in 20 new and used crib mattresses). All mattress samples emitted VOC; mean values of total VOC (TVOC) SER were 56 μg/m²-h at 23° and 139 μg/m²h at 36°. TVOC SER were greater for new vs. used mattresses and were affected by type of foam material and a mattress cover layer. A variety of VOC were identified; polyurethane foam released a greater diversity of VOC than polyester foam. Large-scale chamber experiments were conducted with an infant thermal manikin. Sampled TVOC concentrations in the breathing zone and interior pore air of crib mattress foam were greater than bulk room air by factors of 1.8-2.4 and 7.5-21, resp. Results suggested crib mattresses are an important VOC source, and infant VOC exposure is possibly elevated in sleep micro-environments. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7HPLC of Formula: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.HPLC of Formula: 5444-75-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

The formulation of polymers by polymerization-polycondensation processes: polyimide based systems was written by Vygodskii, Yakov S.;Sakharova, Antonina A.;Matieva, Aza M.. And the article was included in High Performance Polymers in 1999.Product Details of 3063-94-3 The following contents are mentioned in the article:

Radical chain (co)polymerization of a set of acrylates containing dissolved high performance polymers, namely fluoropolyimide, is performed. Based on the study of the structure and properties of the polymers (elemental composition, solubility, mol. weight parameters, etc.) it is proposed that the copolymer formation reaction takes place due to a transfer chain reaction on the polyimide. The influence of acrylates (ethyl-, n-butyl-, methyl-α-fluoro-, ethyl-α-fluoro-, Me glycidyl-, butyl-, hexafluoro-iso-propylmethacrylate) and polyimide content on the properties of the copolymers obtained is studied. Clear and opaque, hard and elastic materials are obtained. These polymers differ in their characteristics from the relevant polyacrylates and their blends with polyimide prepared by the usual method of mixing. One-step catalytic polycondensation of diamines and tetracarboxylic acid dianhydrides in a solution of preformed polyimide is studied. It is shown that such a procedure influences the structure and properties of polyimides formed in situ. This study involved multiple reactions and reactants, such as 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3Product Details of 3063-94-3).

1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Product Details of 3063-94-3

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bromomethanesulfonyl bromide in organic synthesis. A useful new 1,3-diene synthesis was written by Block, Eric;Aslam, Mohammad;Eswarakrishnan, Venkatachalam;Wall, Alan. And the article was included in Journal of the American Chemical Society in 1983.Reference of 50767-78-7 The following contents are mentioned in the article:

Applications of the vinylogous Ramberg-Baecklund reaction to the synthesis of various acyclic and cyclic 1,3-dienes from olefins are described. Thus, by treatment with BrCH₂SO₂Br, followed by elimination of HBr and HSO₂Br, terminal olefins are converted into terminal dienes, methylenecycloalkanes are converted into 1-vinyl-1-cycloalkenes, cycloalkenes are converted into 3-methylene-1-cycloalkenes, 1-methyl-1-cycloalkenes are converted into 1,2-bis(methylene)cycloalkanes, allyl ethers and allyl silanes are converted into 1,3-butadienyl ethers and silanes, resp., and diolefins are converted into bis(1,3-dienes), among other examples. 9,11-Dodecadien-1-ol acetate, the sex pheromone of the red bollworm moth was obtained by the conversion of HO(CH₂)₉CH:CH₂ to HO(CH₂)₈CH:CHCH:CH₂ by the above method, followed by esterification. The reaction represents a new synthetic method for attachment of methylene groups to interior C in chains or to ring C. This study involved multiple reactions and reactants, such as (E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7Reference of 50767-78-7).

(E)-Dodeca-9,11-dien-1-yl acetate (cas: 50767-78-7) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Reference of 50767-78-7

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recommended Correlations for the Surface Tension of Aromatic, Polyfunctional, and Glyceride Esters was written by Mulero, A.;Cachadina, I.;Vegas, A.. And the article was included in Journal of Physical and Chemical Reference Data in 2022.COA of Formula: C15H22O2 The following contents are mentioned in the article:

Surface tension values for 79 esters, including aromatics, polyfunctional, and glycerides, have been compiled from databases, books, and papers in the literature. The data have been carefully screened, and finally, 1517 values were selected. Each fluid dataset has been fitted with the Guggenheim-Katayama correlation with two or four adjustable parameters. Recommended correlations are proposed for each ester, providing mean absolute deviations below 0.50 mN/m for 77 of them, mean absolute percentage deviations below 1.7% for 76 of them, and percentage deviations below 10%, except for four data out of the 59 selected for tricaprylin. The highest deviations found are due to the disagreement between the data obtained from different sources and not to an inadequate math. form of the correlation model. These correlations are added to the collection of those previously proposed for different fluids, including common substances, alcs., refrigerants, organic acids, n-alkanes, and 80 other esters. (c) 2022 American Institute of Physics. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7COA of Formula: C15H22O2).

2-Ethylhexyl benzoate (cas: 5444-75-7) belongs to esters. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.COA of Formula: C15H22O2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Treatment of stabilized landfill leachate by Fenton-like process using Fe₃O₄ particles decorated Zr-pillared bentonite was written by Ma, Cui;He, Zhengguang;Jia, Shengyong;Zhang, Xingjun;Hou, Sen. And the article was included in Ecotoxicology and Environmental Safety in 2018.Recommanded Product: Methyl 2-(4-(tert-butyl)phenoxy)acetate The following contents are mentioned in the article:

Fe₃O₄ particles decorated Zr pillared bentonite (Fe₃O₄/Zr-B) were successfully synthesized, which were used to treat stabilized landfill leachate by Fenton-like process. The organics removal and biodegradability were both significantly improved owing to good catalytic stability of the magnetically recoverable catalyst. With the catalyst dosage of 1.0 mg L^-1, initial pH of 2 and peroxide concentration of 0.1 mmol L^-1, the COD removal efficiency increased to 68% and BOD₅/COD of 0.27 was achieved. According to the results of the GC-MS, Fenton-like reaction with Fe₃O₄/Zr-B had an excellent removal performance for almost all the heterocyclic compounds The 3D-EEM fluorescence spectra indicated that the fluorescence intensity was dramatically reduced and the UV humic-like and fulvic-like substances were removed effectively during the catalytic degradation It seemed advisable to implement this process as a pre-treatment to facilitate the further biol. treatment. This study involved multiple reactions and reactants, such as Methyl 2-(4-(tert-butyl)phenoxy)acetate (cas: 88530-52-3Recommanded Product: Methyl 2-(4-(tert-butyl)phenoxy)acetate).

Methyl 2-(4-(tert-butyl)phenoxy)acetate (cas: 88530-52-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Recommanded Product: Methyl 2-(4-(tert-butyl)phenoxy)acetate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics