Tag: 200-300

Effect of Ionic Liquid Treatment on Pyrolysis Products from Bamboo was written by Muhammad, Nawshad;Omar, Wissam N.;Man, Zakaria;Bustam, Mohamad Azmi;Rafiq, Sikander;Uemura, Yoshimitsu. And the article was included in Industrial & Engineering Chemistry Research in 2012.SDS of cas: 5444-75-7 The following contents are mentioned in the article:

In the present work 1-butyl-3-methylimidazolium chloride (BmimCl) and 1-butyl-3-methylimidazolium acetate (BmimOAc) ionic liquids were used for the dissolution of bamboo biomass. After dissolution the treated samples were precipitated by using H₂O. The calorific value, CHNS content, lignin content, and proximate anal. of the untreated and precipitated material were measured. The BmimCl-treated sample has a higher value for calorific value, elemental percentage of C, and lignin content as well as fixed C, compared to the untreated and BmimOAc treated samples. The untreated and ionic liquid treated samples were also characterized by TGA and XRD. Low thermal stability and change in crystalline form from cellulose Type I to Type II have been observed by the dissolution and precipitation treatment. Pyrolysis-gas chromatog./mass spectrometry (Py-GC/MS) was employed to achieve fast pyrolysis of the untreated and ionic liquid treated samples of bamboo. The desirable products with respect to bio-oil, such as phenols, furans, alcs., hydrocarbons, and aromatics are increased, while the undesirable products such as aldehydes and ketones, except for total acids, are decreased for the BmimCl treated sample. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7SDS of cas: 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.SDS of cas: 5444-75-7

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

Reactive Nanoparticles Derived from Polysaccharide Phenyl Carbonates was written by Gericke, Martin;Geitel, Katja;Joerke, Cornelia;Clement, Joachim H.;Heinze, Thomas. And the article was included in Molecules in 2021.Recommanded Product: 102-09-0 The following contents are mentioned in the article:

Polysaccharide (PS) based nanoparticles (NP) are of great interest for biomedical applications. A key challenge in this regard is the functionalization of these nanomaterials. The aim of the present work was the development of reactive PS-NP that can be coupled with an amino group containing compounds under mild aqueous conditions. A series of cellulose Ph carbonates (CPC) and xylan Ph carbonates (XPC) with variable degrees of substitution (DS) was obtained by homogeneous synthesis. The preparation of PS-NP by self-assembling of these hydrophobic derivatives was studied comprehensively. While CPC mostly formed macroscopic aggregates, XPC formed well-defined spherical NP with diameters around 100 to 200 nm that showed a pronounced long-term stability in water against both particle aggregation as well as cleavage of Ph carbonate moieties. Using an amino group functionalized dye it was demonstrated that the novel XPC-NP are reactive towards amines. A simple coupling procedure was established that enables direct functionalization of the reactive NP in an aqueous dispersion. Finally, it was demonstrated that dye functionalized XPC-NP are non-cytotoxic and can be employed in advanced biomedical applications. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Recommanded Product: 102-09-0).

Diphenyl carbonate (cas: 102-09-0) 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. 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.Recommanded Product: 102-09-0

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

High molecular weight multifunctional fluorescent polyurea: Isocyanate-free fast synthesis, coating applications and photoluminescence studies was written by Kumari, Sulbha;Avais, Mohd;Chattopadhyay, Subrata. And the article was included in Polymer in 2022.Synthetic Route of C13H10O3 The following contents are mentioned in the article:

Isocyanate-free synthesis of high mol. weight polyurea (PUrea) is a challenging and important area of research, considering the health and safety concerns related to isocyanates and a wide range of day-to-day uses of polyurea. In this article, an isocyanate and phosgene-free synthesis of high mol. weight fluorescent polyurea (Mn > 150,000) is reported via triazolinedione (TAD)-indole click reactions. Both the bisTAD and bis-indole monomers are synthesized from di-Ph carbonate using solvent-free reactions. The synthesis of polyurea is finished within 15 min under ambient conditions, without the use of any additives and catalysts, which is a remarkable advantage in comparison to all other reported methods in the literature. The mol. weight (Mn) of the polyurea can be defined as either very high mol. weight >150,000 g/mol or low mol. weight ∼ 3500-4000 g/mol via choosing a suitable solvent for the polymerization reaction. This approach is also useful for polyurea-based hydrophobic coatings as evidenced by the water contact angle anal. The indole-derived aromatic moieties introduced within the polymer backbone; impart photoluminescence properties and polymers show excitation-dependent emission behavior. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Synthetic Route of C13H10O3).

Diphenyl carbonate (cas: 102-09-0) 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. 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.Synthetic Route of C13H10O3

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

Limonene loaded cyclodextrin nanosponge: Preparation, characterization, antibacterial activity and controlled release was written by Salehi, Ozra;Sami, Masoud;Rezaei, Atefe. And the article was included in Food Bioscience in 2021.Name: Diphenyl carbonate The following contents are mentioned in the article:

D limonene (L) is a natural phenolic compound with high antioxidant and antimicrobial activity. However, poor solubility and high volatility limit its applications in the food and pharmaceutical industries. In this study, L was incorporated in β-cyclodextrin nanosponges (CD-NS) to overcome these limitations. For preparation of NS, different molar ratios of β-CD and di-Ph carbonate (DPC) as crosslinker were used. The synthesized NSs were characterized by FTIR, SEM, TGA, and XRD. The release of encapsulated L was evaluated in different food simulants and simulated gastrointestinal conditions. The encapsulation of L in NS was confirmed by FTIR. The L-NS showed cubic structures with an average size around 1528 ± 195 nm. The solubility and thermal stability of L were enhanced after encapsulation in NS. Encapsulated L showed higher antibacterial activity compared to free L and min. inhibitory concentration (MIC) of free L was decreased significantly after encapsulation in CD-NS. L indicated a controlled release in gastrointestinal conditions and different food simulants. Our results propose that CD-NS is a suitable carrier for hydrophobic and sensitive compounds and L-NS can be used as a potential preservative with enhanced antibacterial activity in food applications. It is important to note that the results of this study were obtained in vitro and further studies related to their toxicity (in vivo) are needed for confirmation of their application in the era of nutrition and genomics. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Name: Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) 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. 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.Name: Diphenyl carbonate

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

Thermal and optical properties of highly fluorinated copolymers of methacrylates was written by Teng, Hongxiang;Wan, Zilu;Koike, Yasuhiro;Okamoto, Yoshi. And the article was included in Polymers for Advanced Technologies in 2013.Application In Synthesis of 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate The following contents are mentioned in the article:

Copolymers of pentafluorophenylhexafluoroisopropyl methacrylate (FPPMA) with trifluoroethyl methacrylate (TFEMA) were prepared in THF solution and in bulk using azobisisobutyronitrile as a free radical initiator. The monomer reactivity ratios of TFEMA (M₁) and FPPMA (M₂) were calculated as r₁ = 0.55 and r₂ = 0.07. The refractive indexes of poly(TFEMA) and poly(FPPMA) are very similar as 1.435 and 1.430, resp., at 532 nm, and the copolymer films were transparent. The glass transition temperatures (T_g) of the copolymers were in the range of 80-90° and showed a neg. deviation from the Gordon-Taylor equation. The thermal decomposition temperature (T_d) was increased with the content of FPPMA in copolymers. Low water absorption for 1:1 FPPMA/TFEMA copolymer was detected. Copolymers of FPPMA with hexafluoroisopropyl methacrylate (HFPMA) were also prepared The monomer reactivity ratios of HFPMA (M₁) and FPPMA (M₂) were calculated as r₁ = 0.43 and r₂ = 0.10. The T_gs of the copolymers were in the range of 88-95° and showed also a neg. deviation from the Gordon-Taylor equation. T_g and T_d of the copolymers were increased with the content of FPPMA. The refractive index of poly(HFPMA) (1.384 at 532 nm) is much lower than that of FPPMA homopolymer, but copolymer films obtained were clear and transparent. Copyright © 2013 John Wiley & Sons, Ltd. This study involved multiple reactions and reactants, such as 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate (cas: 3063-94-3Application In Synthesis of 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. Polyesters are important plastics, with monomers linked by ester moieties. 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 1,1,1,3,3,3-Hexafluoroisopropylmethacrylate

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

Dynamics of Concentrated Polymer Solutions Revisited: Isomonomeric Friction Adjustment and Its Consequences was written by Yan, Zhi-Chao;Zhang, Bao-Qing;Liu, Chen-Yang. And the article was included in Macromolecules (Washington, DC, United States) in 2014.HPLC of Formula: 5444-75-7 The following contents are mentioned in the article:

In concentrated polymer solutions, the concentration (ϕ) dependence of the terminal relaxation time τ_d reflects ϕ-dependent changes of several factors, the monomeric friction ζ₀(ϕ), the entanglement length, a(ϕ), and the correlation length, ξ(ϕ). Usually, the effect of the latter two factors on τ_d can be cast in a simple power law, τ_d ∼ ϕ^v. This power law form is to be examined for τ_d after correction of the changes of ζ₀ with ϕ, but this iso-ζ₀ correction is an unsettled problem. The correction based on the concept of “iso-free-volume” has been attempted in literatures. This study focused on four groups of solutions with different local frictional environments to examine universal validity of this correction. The isothermal data of τ_d were rheol. measured, and then corrected to the iso-frictional (iso-ζ₀) state. After this correction, τ_d of most solutions in small mol. solvents showed the power law behavior τ_d ∼ ϕ^v with exponent of v = 2.0 ± 0.2, irresp. of the solvent type, either neutral small mols. or an ionic liquid (organic salt), and of the difference of the glass transition temperatures of the solvent and polymer. In contrast, the exponent became smaller (v ≈ 1.3) for the solutions in an oligomeric solvent. These results are discussed within the frame of the two-length scaling theory that considers changes of ξ and a with ϕ. 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. 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. 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.HPLC of Formula: 5444-75-7

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

Raman study of intramolecular frequency noncoincidence effect in dialkyl benzenedicarboxylates was written by Kim, Yoo Joong;Chang, Hai-Chou;Sullivan, Vivian S.;Jonas, Jiri. And the article was included in Journal of Chemical Physics in 1999.SDS of cas: 5444-75-7 The following contents are mentioned in the article:

Raman noncoincidence effects (NCE) of the C:O stretching band of dialkyl esters of phthalic, isophthalic, and terephthalic acids were measured as a function of concentration in MeCN and dioxane solutions By quenching the intermol. vibrational interactions between the C:O groups of neighboring mols. by dilution, the NCE arising from the coupling between 2 C:O stretching vibrations in a single diester mol. was observed for the 1st time. The intramol. NCE values for these mols. were neg. and dependent on the relative orientation and distance between the 2 C:O groups in the mol. Similarly as for most intermol. NCE, the intramol. NCE is explained by the transition-dipole coupling mechanism. The presence of a single dipolar coupling pair allows one to express the intramol. NCE values by a simple anal. equation with a few mol. parameters including those for the arrangement of the 2 C:O groups. The observed intramol. NCE values are well predicted, with a limitation of large dipolar distance, by the equation with the geometric parameters obtained from the ab initio optimized structures. In fact, the NCEs provided information about detailed conformational structure of the benzenedicarboxylates in dilute solutions Since the intramol. NCE value indeed corresponds to a frequency difference between the in-phase and out-of-phase C:O stretching normal modes of a mol., suggesting that the vibrational coupling between the 2 C:O internal coordinates in these mols. is mainly due to the transition dipolar interaction. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7SDS of cas: 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is γ-valerolactone.SDS of cas: 5444-75-7

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

Formulation and evaluation of nanosponge gel containing ketoconazole was written by Jadhao, Umesh T.;Sayali, Rathod P.;Gunesh, Dhembre N.;Shital, Sable D.;Sneha, Lokhande S.. And the article was included in Innovations in Pharmaceuticals and Pharmacotherapy in 2021.Related Products of 102-09-0 The following contents are mentioned in the article:

The aim of present work is to successfully formulate, evaluate and optimize nanosponges of ketoconazole drug for its efficient delivery through gel base. Nanosponge formulations were prepared using β-CD:cross-linker ratios of 1:15-1:3. The prepared nanosponges were evaluated for percentage yield, incorporation efficiency, particle size, drug polymer compatibility, SEM (SEM), and in vitro drug release. SEM studies confirmed their porous structure with number of nanochannels. The Fourier transform IR spectra showed stable character of ketoconazole in mixture of polymers. Differential Scanning Calorimetry study revealed that drug was involved in complexation with nanosponges. The average particle size of nanoparticles was found to be 78.81 ± 0.20 nm-336.02 ± 0.124 nm. The drug release from nanosponges was found to extend up to 8 h 82-92%. The nanosponges were formulated into gel using Carbopol 940 Batches G1 to G4 and were prepared by incorporating nanosponges equivalent to 6% weight/weight of ketoconazole in different polymer concentrations, resp., and evaluated for percent drug content, viscosity study, spreadability study, and in vitro diffusion studies. Drug diffusion from the nanosponge loaded gel formulations was show sustained rate. A sustained release topical drug delivery of ketoconazole developed as a nanosponge loaded gel offers solubilizing matrix for the drug, served as a local depot for sustained drug release, and provided a rate limiting matrix barrier for modulation of drug release. 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 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. Polyesters are important plastics, with monomers linked by ester moieties. 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.Related Products of 102-09-0

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

Incorporation of thyme essential oil into the β-cyclodextrin nanosponges: Preparation, characterization and antibacterial activity was written by Rezaei, Atefe;Khavari, Shokoofeh;Sami, Masoud. And the article was included in Journal of Molecular Structure in 2021.Recommanded Product: Diphenyl carbonate The following contents are mentioned in the article:

Thyme essential oil (TEO) is a natural phenolic compound and has high antimicrobial and antioxidant activity. However, essential oils are very sensitive to environmental conditions and have high volatility and poor solubility that limit their applications. In this study, the incorporation of TEO into the β-cyclodextrin nanosponges was investigated. Di-Ph carbonate was used as cross-linker. The characterization of the obtained nanosponges was done by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform IR spectroscopy (FTIR), andthermogravimetric analyzer(TGA). Encapsulation efficiency, loading capacity, solubility, and antibacterial properties of the TEO-nanosponges were analyzed. The TEO-nanosponges showed porous structures with an average size lower than 326 nm. The results of FTIR and XRD confirmed the incorporation of TEO into the nanosponges. Thermogravimetric anal. indicated that the inclusion complex of TEO and nanosponges enhanced the thermal stability of TEO significantly. The inclusion complex of TEO into the nanosponges increased its antibacterial activity. The aqueous solubility of TEO was enhanced by 15-folds after encapsulation within nanosponges. Min. inhibitory concentration of TEO was decreased up to 29.4 folds after encapsulation into the nanosponges. The results suggest that β-cyclodextrin nanosponges can potentially be used as a delivery system for hydrophobic and sensitive compounds to increase their usage in the pharmaceutical and food industries. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Recommanded Product: Diphenyl carbonate).

Diphenyl carbonate (cas: 102-09-0) 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. 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: Diphenyl carbonate

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

Carbon-13 NMR Study of the Effect of Confinement on the Molecular Dynamics of 2-Ethylhexyl Benzoate was written by Sullivan, Vivian S.;Kim, Yoo Joong;Xu, Shu;Jonas, Jiri;Korb, J.-P.. And the article was included in Langmuir in 1999.Application of 5444-75-7 The following contents are mentioned in the article:

Spin-lattice relaxation times of individual carbons in 2-ethylhexyl benzoate (EHB) in bulk and confined to porous silica glasses of pore radii of 33, 52, and 102 Å were measured as a function of temperature from +40 to -51 °C. The two-state fast exchange model was successfully applied, in the wide temperature range including beyond the motional narrowing regime, to determine the spin-lattice relaxation times of the mols. in the surface layer (T_1S) as a function of temperature The Cole-Davidson distribution model was used to analyze the relaxation data for both the bulk (T_1B) and surface layer (T_1S) of the confined liquid The line broadening of confined EHB at lower temperatures below -21 °C inherently limited the temperature range over which T_1S could be estimated and prevented the quant. anal. of T_1S by the model. Through the phenomenol. comparison of T_1S with T_1B in terms of the parameters of the Cole-Davidson model, it was found that the motional behavior of the Ph ring part of the EHB mol. was significantly affected by the surface interaction and the effect is smaller for the flexible alkyl chain. Small temperature dependence of the relaxation rate of T_1S at motional narrowing regime showed a characteristic feature of liquid diffusing on a two-dimensional surface. In addition, the results of the quant. anal. of T_1B were compared with a previous experiment performed as a function of pressure. This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Application of 5444-75-7).

2-Ethylhexyl benzoate (cas: 5444-75-7) 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.Application of 5444-75-7

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