Category: 27249-90-7

Novel W(II) complexes for reversible addition-fragmentation chain transfer (RAFT) polymerizations was written by Chen, Chuan-Lin;Lo, Yih-Hsing;Lee, Chia-Yi;Fong, Yih-Hsuan;Shih, Kuo-Chen;Huang, Chiung-Cheng. And the article was included in Inorganic Chemistry Communications in 2010.SDS of cas: 27249-90-7 This article mentions the following:

Alkylation of the phosphorus coordination of the diphenyl(dithioformato)phosphine ligand in [W(CO)₅(PPh₂CS₂)]NEt₄ (1) at the S atom results in the formation of the novel RAFT agent S閳烘€孾W(CO)₅PPh₂]S-R (2a, R = CH₂Ph; 2b, R = CH₂CH閳烘€孒₂). These compounds have been shown to be highly effective in reversible addition-fragmentation chain transfer (RAFT) polymerization to produce polymers (homopolymer and diblock copolymer) of predetermined mol. weight and narrow polydispersity (< 1.3). Electron-withdrawing organometallic substituents can increase the activity of RAFT agents. To the best of our knowledge, this is the first report of their use as RAFT agents in polymerization In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7SDS of cas: 27249-90-7).

Benzyl benzodithioate (cas: 27249-90-7) 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 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: 27249-90-7

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

Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition-fragmentation chain transfer polymerization was written by Roohi, Farnoosh;Titirici, Maria-Magdalena. And the article was included in New Journal of Chemistry in 2008.Electric Literature of C14H12S2 This article mentions the following:

Mesoporous silica beads modified with an azo initiator were used for grafting of a thermo-responsive polymer (poly-N-isopropylacrylamide, PNIPAAM) through reversible addition-fragmentation chain transfer (RAFT) mediated polymerization The RAFT mediation allowed an efficient control of the grafting process and led to suppression of the solution propagation preventing any visible gel formation. The resulting composites were characterized by FTIR spectroscopy, nitrogen adsorption anal., elemental anal., transmission and SEM and as thermo-responsive stationary phases in chromatog. The resulting material proved to be efficient for the separation of a mixture of five hydrophobic steroids and the retention time and efficiency of separation improved with increasing the column temperature above the lowest critical solution temperature of PNIPAAM. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Electric Literature of C14H12S2).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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.Electric Literature of C14H12S2

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

Aggregation behaviour of poly(fluoro(meth)acrylate)-block-poly(acrylic acid) copolymers at the air /water interface was written by Grigoreva, Alexandra;Tarankova, Kseniia;Zamyshlyayeva, Olga;Zaitsev, Sergey. And the article was included in Journal of Polymer Research in 2021.Safety of Benzyl benzodithioate This article mentions the following:

The formation of monolayers of poly(fluoro(meth)acrylate)-b-poly(acrylic acid) (PFA-b-PAA) amphiphilic diblock copolymers at the air/water interface was characterized with the Langmuir film balance technique and at. force microscopy. Both internal and external effects on the aggregation behavior of the amphiphilic copolymers were considered. The structure of fluorinated hydrophobic part, as an internal factor, affects the surface behavior of the amphiphilic copolymers through changes in the packing d. of the hydrophobic core. The morphol. of the LB films of all the three copolymers exhibit circular micelles with the hydrophobic core and hydrophilic coronas. The variation in pH and ionic strength leads to changes in charge distribution of PAA coronas. The surface area occupied by the PFA-b-PAA copolymers decrease with the rise of pH of subphase. The increase in salt concentration provides for the reduction of electrostatic repulsion between the hydrophilic blocks. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Safety of Benzyl benzodithioate).

Benzyl benzodithioate (cas: 27249-90-7) 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 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.Safety of Benzyl benzodithioate

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

An L-glutaminase enzyme reactor based on porous bamboo sticks and its application in enzyme inhibitors screening was written by Qiao, Juan;Zhao, Liping;Liu, Lili;Qi, Li. And the article was included in Talanta in 2019.HPLC of Formula: 27249-90-7 This article mentions the following:

Inspired by the porous and fibrous structure of com. available bamboo, herein we created an L-glutaminase enzyme reactor based on bamboo sticks. The enzyme was immobilized onto the bamboo sticks through a glutaraldehyde modification to achieve covalent bonding. The enzymic hydrolysis efficiency of the prepared L-glutaminase@bamboo sticks based porous enzyme reactor was evaluated by chiral ligand exchange capillary electrochromatog. using L-glutamine as the substrate. L-Glutaminase@bamboo exhibited improved enzymic hydrolysis performances, including high hydrolysis efficiency (maximum rate V_max: two fold higher than the free enzyme), prolonged stability (14 days) and good reusability. L-Glutaminase@bamboo sticks also expanded application capability in pharmaceutical industry in enzyme inhibitor screening. These excellent properties could be attributed to the micropores of bamboo sticks, which led to the fast enzymic kinetics. The results suggest that the pores of bamboo sticks played an important role in the proposed enzyme reactor during the hydrolysis of L-glutamine and L-glutaminase inhibitor screening. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7HPLC of Formula: 27249-90-7).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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: 27249-90-7

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

Thin thermo-responsive polymer films onto the pore system of chromatographic beads via reversible addition-fragmentation chain transfer polymerization was written by Roohi, Farnoosh;Titirici, Maria-Magdalena. And the article was included in New Journal of Chemistry in 2008.Electric Literature of C14H12S2 This article mentions the following:

Mesoporous silica beads modified with an azo initiator were used for grafting of a thermo-responsive polymer (poly-N-isopropylacrylamide, PNIPAAM) through reversible addition-fragmentation chain transfer (RAFT) mediated polymerization The RAFT mediation allowed an efficient control of the grafting process and led to suppression of the solution propagation preventing any visible gel formation. The resulting composites were characterized by FTIR spectroscopy, nitrogen adsorption anal., elemental anal., transmission and SEM and as thermo-responsive stationary phases in chromatog. The resulting material proved to be efficient for the separation of a mixture of five hydrophobic steroids and the retention time and efficiency of separation improved with increasing the column temperature above the lowest critical solution temperature of PNIPAAM. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Electric Literature of C14H12S2).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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.Electric Literature of C14H12S2

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

Aggregation behaviour of poly(fluoro(meth)acrylate)-block-poly(acrylic acid) copolymers at the air /water interface was written by Grigoreva, Alexandra;Tarankova, Kseniia;Zamyshlyayeva, Olga;Zaitsev, Sergey. And the article was included in Journal of Polymer Research in 2021.Safety of Benzyl benzodithioate This article mentions the following:

The formation of monolayers of poly(fluoro(meth)acrylate)-b-poly(acrylic acid) (PFA-b-PAA) amphiphilic diblock copolymers at the air/water interface was characterized with the Langmuir film balance technique and at. force microscopy. Both internal and external effects on the aggregation behavior of the amphiphilic copolymers were considered. The structure of fluorinated hydrophobic part, as an internal factor, affects the surface behavior of the amphiphilic copolymers through changes in the packing d. of the hydrophobic core. The morphol. of the LB films of all the three copolymers exhibit circular micelles with the hydrophobic core and hydrophilic coronas. The variation in pH and ionic strength leads to changes in charge distribution of PAA coronas. The surface area occupied by the PFA-b-PAA copolymers decrease with the rise of pH of subphase. The increase in salt concentration provides for the reduction of electrostatic repulsion between the hydrophilic blocks. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Safety of Benzyl benzodithioate).

Benzyl benzodithioate (cas: 27249-90-7) 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 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.Safety of Benzyl benzodithioate

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

An L-glutaminase enzyme reactor based on porous bamboo sticks and its application in enzyme inhibitors screening was written by Qiao, Juan;Zhao, Liping;Liu, Lili;Qi, Li. And the article was included in Talanta in 2019.HPLC of Formula: 27249-90-7 This article mentions the following:

Inspired by the porous and fibrous structure of com. available bamboo, herein we created an L-glutaminase enzyme reactor based on bamboo sticks. The enzyme was immobilized onto the bamboo sticks through a glutaraldehyde modification to achieve covalent bonding. The enzymic hydrolysis efficiency of the prepared L-glutaminase@bamboo sticks based porous enzyme reactor was evaluated by chiral ligand exchange capillary electrochromatog. using L-glutamine as the substrate. L-Glutaminase@bamboo exhibited improved enzymic hydrolysis performances, including high hydrolysis efficiency (maximum rate V_max: two fold higher than the free enzyme), prolonged stability (14 days) and good reusability. L-Glutaminase@bamboo sticks also expanded application capability in pharmaceutical industry in enzyme inhibitor screening. These excellent properties could be attributed to the micropores of bamboo sticks, which led to the fast enzymic kinetics. The results suggest that the pores of bamboo sticks played an important role in the proposed enzyme reactor during the hydrolysis of L-glutamine and L-glutaminase inhibitor screening. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7HPLC of Formula: 27249-90-7).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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: 27249-90-7

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

Synthesis and Optoelectronic Properties of Alternating Copolymers Containing Anthracene Unit in The Main Chain by Radical Ring-Opening Polymerization was written by Mori, Hideharu;Tando, Izumi;Tanaka, Hiromi. And the article was included in Macromolecules (Washington, DC, United States) in 2010.Category: esters-buliding-blocks This article mentions the following:

Novel alternating copolymers composed of anthracene moiety and halostyrene unit were synthesized by ring-opening polymerization of cyclic monomers, 10-methylene-9,10-dihydroanthryl-9-spiro-p-chlorophenylcyclopropane and its bromo derivative Reversible addition-fragmentation chain transfer and conventional free radical polymerizations were employed for the purpose. In both cases, the ring-opening polymerization proceeded predominantly to afford alternating copolymer containing anthracene unit in the main chain. Incorporations of optoelectronic groups, involving diphenylamine, carbazole, and phenothiazine, on the halostyrene moieties of the alternating copolymers were conducted by palladium-catalyzed reactions. Novel nonconjugated copolymers having perfect alternating structures were obtained, in which the alternate arrangement of two distinct electronic functionalities is formed owing to the ring-opening polymerization system. Resulting anthracene-based alternating copolymers having two distinct electronic functionalities exhibited characteristic fluorescence resonance energy transfer, as confirmed by UV-vis and fluorescence spectra. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Category: esters-buliding-blocks).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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.Category: esters-buliding-blocks

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

Dependence of Thermal Stability on Molecular Structure of RAFT/MADIX Agents: A Kinetic and Mechanistic Study was written by Zhou, Yanwu;He, Junpo;Li, Changxi;Hong, Linxiang;Yang, Yuliang. And the article was included in Macromolecules (Washington, DC, United States) in 2011.Recommanded Product: Benzyl benzodithioate This article mentions the following:

The thermal decomposition of different classes of RAFT/MADIX agents, namely dithioesters, trithiocarbonates, xanthates, and dithiocarbamates, were studied through heating in solution The decomposition behavior is complicated interplay of the effects of stabilizing Z-group and leaving R-group. The mechanism of the decomposition is mainly through three pathways, i.e., β-elimination, α-elimination, and homolysis of dithiocarbamate (particularly for universal RAFT agent). The most important pathway is the β-elimination of thiocarbonylthio compounds possessing β-hydrogen, leading to the formation unsaturated species. For the leaving group containing solely α-hydrogen, such as benzyl, α-elimination takes place, resulting in the formation of (E)-stilbene through a carbene intermediate. Homolysis occurs specifically in the case of a universal RAFT agent, in which a thiocarbonyl radical and an alkylthio radical are generated, finally forming thiolactone through a radical process. The stabilities of the RAFT/MADIX agents are studied by measuring the apparent kinetics and activation energy of the thermal decomposition reactions. Both Z-group and R-group influence the stability of the agents through electronic and steric effects. Lone pair electron donating heteroatoms of Z-group show a remarkable stabilizing effect while electron withdrawing substituents, either in Z- or R-group, tends to destabilize the agent. In addition, bulkier or more β-hydrogens result in faster decomposition rate or lower decomposition temperature Thus, the stability of the RAFT/MAIDX agents decreases in the order where R is (with identical Z = phenyl) -CH₂Ph (5) >-PS (PS-RAFT 15) > -C(Me)HPh (2) >-C(Me)₂C(=O)OC₂H₅ (7) >-C(Me)₂Ph(1) > -PMMA (PMMA-RAFT 16) > -C(Me)₂CN (6). For those possessing identical leaving group such as 1-phenylethyl, the stability decreases in the order of O-Et (11) > -N(CH₂CH₃)₂ (13) > -SCH(CH₃)Ph (8) > -Ph (2) > -CH₂Ph (4) > -PhNO₂ (3). These results consort with the chain transfer activities measured by the CSIRO group and agree well with the ab initio theor. results by Coote. In addition, the difference between thermal stabilities of the universal RAFT agents at neutral and protonated states was demonstrated. In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Recommanded Product: Benzyl benzodithioate).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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.Recommanded Product: Benzyl benzodithioate

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

RAFT Polymerization of Acrylamides Containing Proline and Hydroxyproline Moiety: Controlled Synthesis of Water-Soluble and Thermoresponsive Polymers was written by Mori, Hideharu;Kato, Ikumi;Matsuyama, Motonobu;Endo, Takeshi. And the article was included in Macromolecules (Washington, DC, United States) in 2008.Formula: C14H12S2 This article mentions the following:

Two acrylamides containing proline and hydroxyproline moiety, N-acryloyl-L-proline (A-Pro-OH) and N-acryloyl-4-trans-hydroxy-L-proline (A-Hyp-OH), were polymerized by reversible addition-fragmentation chain transfer (RAFT) process to afford well-defined amino acid based polymers. Two chain transfer agents (CTAs), benzyl dithiobenzoate (CTA 1) and benzyl 1-pyrrolecarbodithioate (CTA 2), were compared for the direct polymerization of these monomers without protecting chem. With 2,2′-azobis(isobutyronitrile) as an initiator, the dithiocarbamate-type RAFT agent (CTA 2) was efficient for the controlled synthesis of poly(A-Pro-OH)s, which can be regarded as a weak polyelectrolyte. Controlled character of the polymerization of A-Hyp-OH, which has a carboxylic acid and a hydroxyl group in the monomer unit, in the presence of CTA 1 was confirmed by the formation of narrow polydispersity products and the linear relationship between the mol. weight and conversion. Water-soluble poly(A-Hyp-OH)s with number-average mol. weights between 8.2 × 10³ and 2.21 × 10⁴ and relatively low polydispersities were obtained, depending on the monomer/CTA ratio. Their methylated samples, poly(A-Pro-OMe) and poly(A-Hyp-OMe), and random copolymers showed characteristic thermal phase transitions in aqueous solutions In the experiment, the researchers used many compounds, for example, Benzyl benzodithioate (cas: 27249-90-7Formula: C14H12S2).

Benzyl benzodithioate (cas: 27249-90-7) 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. 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.Formula: C14H12S2

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