Category: 102-09-0

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

Synthesis of prepolymer of polycarbonate through melt transesterification process was written by Wang, Jin. And the article was included in Gongcheng Suliao Yingyong in 2021.Computed Properties of C13H10O3 The following contents are mentioned in the article:

The hydrogenated bisphenol A polycarbonate prepolymer was synthesized from di-Ph carbonate (DPC) and hydrogenated bisphenol A (HBPA) by melt transesterification in the N₂ sweep fluid and low vacuum degree. The prepolymer was analyzed using some simple methods, and its structure was determined by Fourier transform IR spectroscopy, thermal property was determined by differential scanning calorimetry, intrinsic viscosity was determined by ubbelohde viscometer, and appearance of the product was determined by UV-visible spectrophotometer and Ubbelohde viscometer. The structure and properties of hydrogenated bisphenol A polycarbonate (HBPA-PC) prepolymer were compared to that of bisphenol A polycarbonate (BAPC) pre-polymer. The results show that the structure of the polymer indicates that the polymer is polycarbonate. The prepolymer of HBPA-PC have lower than the prepolymer of BAPC in color property, and have higher than the prepolymer of BAPC in the melting temperature under the same synthesis condition in thermal stability and color property. The optimum synthesis conditions are obtained as follows: the dosage of catalyst is 0.00048 mol (1 mol HBPA), the molar ratio between DPC and HBPA is 1.06:1, polycondensation time is 25 min in the range of 170-190°C, polycondensation time is 30 min in the range of 200-220°C. The intrinsic viscosity, the chromatic aberration and the melting temperature of HBPA-PC prepolymer under the optimum conditions are 14.72 mL/g, 2.90, 220.1°C, resp. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Computed Properties of C13H10O3).

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. 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.Computed Properties of C13H10O3

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

Evaluation and Characterization of Curcumin-β-Cyclodextrin and Cyclodextrin-Based Nanosponge Inclusion Complexation was written by Mashaqbeh, Hadeia;Obaidat, Rana;Al-Shar’i, Nizar. And the article was included in Polymers (Basel, Switzerland) in 2021.Quality Control of Diphenyl carbonate The following contents are mentioned in the article:

Cyclodextrin polymers and cyclodextrin-based nanosponges have been widely investigated for increasing drug bioavailability. This study examined curcumin’s complexation stability and solubilization with β-cyclodextrin and β-cyclodextrin-based nanosponge. Nanosponges were prepared through the crosslinking of β-cyclodextrin with different molar ratios of di-Ph carbonate. Phase solubility experiments were conducted to evaluate the formed complexes and evaluate the potential of using β-cyclodextrin and nanosponge in pharmaceutical formulations. Furthermore, physicochem. characterizations of the prepared complexes included PXRD, FTIR, NMR, and DSC. In addition, in vitro release studies were performed for the prepared formulations. The formation of β-cyclodextrin complexes enhanced curcumin solubility up to 2.34-fold compared to the inherent solubility, compared to a 2.95-fold increment in curcumin solubility when loaded in β-cyclodextrin-based nanosponges. Interestingly, the stability constant for curcumin nanosponges was (4972.90 M-1), which was ten times higher than that for the β-cyclodextrin complex, where the value was 487.34 M-1. The study results indicated a decrease in the complexation efficiency and solubilization effect with the increased crosslinker amount This study’s findings showed the potential of using cyclodextrin-based nanosponge and the importance of studying the effect of crosslinking d. for the preparation of β-cyclodextrin-based nanosponges to be used for pharmaceutical formulations. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Quality Control of Diphenyl carbonate).

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. 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.Quality Control of Diphenyl carbonate

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

Research on the controllable degradation of N-methylamido and dialkylamino substituted at the 5^th position of the benzene ring in chlorsulfuron in acidic soil was written by Meng, Fan-Fei;Wu, Lei;Gu, Yu-Cheng;Zhou, Sha;Li, Yong-Hong;Chen, Ming-Gui;Zhou, Shaa;Zhao, Yang-Yang;Ma, Yi;Li, Zheng-Ming. And the article was included in RSC Advances in 2020.Recommanded Product: 102-09-0 The following contents are mentioned in the article:

Owing to the lengthy residual problems associated with chlorsulfuron, metsulfuron-Me, and ethametsulfuron, which prevents them from being used in the “annual multi-crop planting system”, the application of these sulfonylurea herbicides (SU) has regrettably been terminated in China since 2014. In this field, we were the first to discover that the 5^th position of the benzene ring in chlorsulfuron is a key point for influencing its degradation rate and the amino moiety at this position showed faster degradation rates and maintained their original potent bioactivity. In this study, we further elaborated on N-methylamido and dialkylamino substituents at the same position in chlorsulfuron to obtain 18 novel structures as M and N series. Their half-life degradation (DT₅₀) values were faster, to varying degrees, than chlorsulfuron in acidic soil. It was found that most of the titled structures also retained their potent herbicidal activity and the crop safety of the M series towards corn greatly increased. Based on these data, a comprehensive graph describing the structure/degradation relationship was established first. Relating to the new mols., their herbicidal activity (A), degradation rates (D), and crop safety (S) relationship were correlated and we used this approach to predict and explore the most preferable mol., which coincided to the corresponding exptl. data. The new concept of controllable degradation will provide us with more insight when searching for new ecol. bioactive mols. in the future. 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 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.Recommanded Product: 102-09-0

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

Synthesis of Aliphatic Hyperbranched Polycarbonates via Organo-Catalyzed “A₁+B₂“-Ring-Opening Polymerization was written by Wang, Chengliang;Zhang, Xu;Zhao, Wei;Liu, Xin;Wang, Qingfu;Sun, Jingjiang. And the article was included in Macromolecules (Washington, DC, United States) in 2022.Synthetic Route of C13H10O3 The following contents are mentioned in the article:

Hyperbranched aliphatic polycarbonates (HBPCs) have attracted significant attention in the field of biomedical application owing to their abundant end groups, biocompatibility, and nontoxic degradation products. However, their practical application is hampered by tedious synthesis procedures. The present work described a novel organo-catalyzed “A₁+B₂“-ring-opening polymerization (ROP) using a monofunctional primary alc. (A₁) as an initiator and a bicyclic carbonate monomer (B₂) for the straightforward synthesis of HBPCs under mild conditions. No gelation was observed up to 90% conversion of the cyclic carbonate ring. HBPCs with molar masses in the range from 7 to 20 kg/mol were obtained. Based on the “A₁+B₂“-ROP, HBPCs bearing a variety of functionalities including alkene, alkyne, aldehyde, furan, azide, and mPEG groups, which are of great significance in the field of click chem., have been successfully prepared by using functional alc. initiators. This polymerization strategy allowed for precise control over the HBPC structure: (1) the hyperbranched polymer (HBP) backbone can be adjusted by design of a bicyclic carbonate monomer with various linkages; (2) the use of an appropriate initiator leads to the introduction of functional end groups. Overall, the “A₁+B₂“-ROP provides an efficient method for preparing a variety of HBPs like hyperbranched polyester, polyether, polyphosphate, and poly(amino acid) with complex architectures in a single step. 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. 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 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. Synthetic Route of C13H10O3

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

Transparent PC/PMMA Blends with Enhanced Mechanical Properties via Reactive Compounding of Functionalized Polymers was written by Bubmann, Tobias;Seidel, Andreas;Ruckdaeschel, Holger;Altstaedt, Volker. And the article was included in Polymers (Basel, Switzerland) in 2022.Name: Diphenyl carbonate The following contents are mentioned in the article:

Reactive compounding of terminally phenolic OH-functionalized polycarbonate (PC) with epoxy-functionalized polymethylmethacrylate (PMMA) prepared by copolymerization with glycidyl methacrylate was investigated. It was spectroscopically demonstrated that a PC/PMMA copolymer was formed during the melt reaction of the functional groups. Zirconium acetylacetonate could catalytically accelerate this reaction. Correlations of the phenomenol. (optical and mech.) properties with the mol. level and mesoscopic (morphol.) structure were discussed. By the investigated reactive compounding process, transparent PC/PMMA blends with two-phase morphologies were obtained in a continuous twin-screw extruder, which, for the first time, combined the high transmission of visible light with excellent mech. performance (e.g., synergistically improved tensile and flexural strength and high scratch resistance). The transparency strongly depended on (a) the degree of functionalization in both PC and PMMA, (b) the presence of the catalyst, and (c) the residence time of the compounding process. The in-situ-formed PC/PMMA copolymer influenced the observed macroscopic properties by (a) a decrease in the interphase tension, leading to improved and stabilized phase dispersion, (b) the formation of a continuous gradient of the polymer composition and thus of the optical refractive indexes in a diffuse mesoscopic interphase layer separating the PC and PMMA phases, and (c) an increase in the phase adhesion between PC and PMMA due to mech. polymer chain entanglement in this interphase. 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. 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 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. Name: Diphenyl carbonate

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

A smart paper@polyaniline nanofibers incorporated vitrimer bifunctional device with reshaping, shape-memory and self-healing properties applied in high-performance supercapacitors and sensors was written by Xiong, Chuanyin;Li, Mengrui;Zhao, Wei;Duan, Chao;Dai, Lei;Shen, Mengxia;Xu, Yongjian;Ni, Yonghao. And the article was included in Chemical Engineering Journal (Amsterdam, Netherlands) in 2020.Formula: C13H10O3 The following contents are mentioned in the article:

Smart devices based on paper-based composite materials are attracting increasing attention for applications in wearable and flexible energy storage and strain sensors, due to their outstanding flexibility and light weight properties. Although the paper materials are modified by various methods to overcome the shortcomings of poor conductivity and obtain various smart properties, the functionalized paper-based materials generally have poor swelling, mech. strength and cycle stability in the electrochem. process, which seriously affects the application of paper-based devices in energy storage. Herein, for the first time a new class of sym. integrated smart paper-based supercapacitors with binder-free was fabricated by incorporating vitrimer (V) into original paper with pencil-drawing (OPD) loading polyaniline nanofibers (PN). The resultant OPD@PN-V supercapacitor show high gravimetric and areal specific energy d. of 56 Wh kg^-1 and 785μWh cm^-2 and simultaneously maintains high gravimetric and areal specific power d. of 78 kW kg^-1 and 286 mW cm^-2, substantially surpassing the performance of conventional supercapacitors device with separator. More importantly, the introduction of vitrimer greatly enhances the cycle stability of the supercapacitor, and the supercapacitor also displays good reshaping, shape-memory and self-healing properties, which greatly broadens the application scenarios of supercapacitors. Besides, the OPD@PN-V device also shows a great potential in detecting the movement of human. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Formula: C13H10O3).

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.Formula: C13H10O3

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

Tailor-made chalcogen-rich polycarbonates: experimental and computational insights into chalcogen group-dependent ring opening polymerization was written by Wei, Chao;Lian, Cheng;Yan, Bingkun;Xiao, Yan;Lang, Meidong;Liu, Honglai. And the article was included in Polymer Chemistry in 2020.Category: esters-buliding-blocks The following contents are mentioned in the article:

The critical role of abundant chalcogens (with variable types and valences) located in polymer backbones on the properties, functions and bioactivities of final materials underscores the pressing need for versatile and controlled synthetic platforms towards chalcogen-rich polymers. Herein, we reported a universal and robust approach to generate a poly(chalcogen-carbonate) library using com. available organic base-catalyzed ring opening polymerization (ROP) of macrocarbonates containing chalcogen groups. Polymerizations have unique advantages including high control, fast kinetics, mild reaction conditions at room temperature and compatible operation for different monomers. Furthermore, ROP depends sensitively on chalcogen groups, where thioether (-S-), selenide (-Se-) and disulfide (-SS-)-substituted monomers polymerize readily, while the diselenide (-SeSe-) substituted one is difficult to polymerize. A d. functional theory (DFT)-combined exptl. study provided abundant mechanism insights and illuminated the structure/composition-kinetic relationships to rationalize the observed polymerization trends. Polymerization kinetics was gradually suppressed with chalcogen groups evolving from -S-, -Se-, -SS- to -SeSe-, which may offer a powerful support to forecast the polymerization behaviors of other chalcogen-based monomers. This work not only describes a convenient and efficient strategy for chalcogen-rich polymeric materials, but also provides important insights for understanding the influence of chalcogen groups on polymerization behaviors. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Category: esters-buliding-blocks).

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, including apples, durians, pears, bananas, pineapples, and strawberries. 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. Category: esters-buliding-blocks

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

Synthesis of bio-based poly(oligoethylene glycols-co-isosorbide carbonate)s with high molecular weight and enhanced mechanical properties via ionic liquid catalyst was written by Li, Chenhao;Zhang, Zhencai;Yang, Zifeng;Fang, Wenjuan;An, Hongzhe;Li, Tao;Xu, Fei. And the article was included in Reactive & Functional Polymers in 2020.Reference of 102-09-0 The following contents are mentioned in the article:

As a kind of bio-based platform chems. derived from renewable resource glucose, isosorbide (ISB) is considered the perfect candidate for the synthesis of polycarbonate (PC) to replace chronic toxic bisphenol A (BPA) due to its attractive rigidity, non-toxicity and chirality. However, synthesis of poly(isosorbide carbonate) (PIC) with high mol. weight and excellent mech. properties is one of tremendous challenges due to low internal hydroxyl group activity and poor structural flexibility of ISB. Herein, we developed a new series of ISB-based copolycarbonates with intriguing properties through incorporating flexibility moiety oligoethylene glycols (OEG) into PIC. By employing bifunctional 1-butyl-3-methylimidazolium lactate IL catalyst, copolycarbonates with high weight-average mol. weight ranging from 94,700 to 146,200 were synthesized via efficient dual activation effect on the carbonyl group in di-Ph carbonate and the hydroxyl group in ISB. Among of them, poly(diethylene glycol-co-isosorbide carbonate) (PDIC) possessed excellent mol. flexibility and showed the best mech. performance with average value of the elongation at break as high as 160%, which was eight times more than PIC prepared (18%) and much higher than the com. BPA-based PC (around 100%). Simultaneously, PDIC showed a 1.25-fold higher tensile strength (80 MPa) than that of BPA-based PC with 63 MPa. This implied that bio-derived copolycarbonates developed in this research effectively enhanced the ductility and processability of PIC and possessed enormous prospect for the industrial application. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Reference of 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, including apples, durians, pears, bananas, pineapples, and strawberries. 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.Reference of 102-09-0

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

Direct Immersion-Solid-Phase Microextraction Coupled to Gas Chromatography-Mass Spectrometry and Response Surface Methodology for Nontarget Screening of (Semi-) Volatile Migrants from Food Contact Materials was written by Su, Qi-Zhi;Vera, Paula;Nerin, Cristina. And the article was included in Analytical Chemistry (Washington, DC, United States) in 2020.Category: esters-buliding-blocks The following contents are mentioned in the article:

Toward a more rigorous inspection of food contact materials, the importance of sample preparation for nontarget screening should be addressed. Direct immersion-solid-phase microextraction coupled to gas chromatog. mass spectrometry (DI-SPME-GC-MS) was optimized for nontarget screening of migrants in 3% acetic acid, 10% ethanol, and 95% ethanol food simulants by response surface methodol. (RSM) in the present study. Optimum conditions were DVB/CAR/PDMS fiber, no pH adjustment for 10% and 95% ethanol simulant but pH adjustment to 7 for 3% acetic acid simulant, no salt addition, 5 min preincubation, 55 min extraction at 70°C, and 8 min desorption at 250°C. In addition, 9.5 times dilution of 95% ethanol samples prior to extraction was required. pH modification of 3% acetic acid samples was found to be critical for the extraction of amines. The proposed methodol. was then evaluated by determining the limit of detection (LOD) as well as repeatability of 35 food contact materials-related substances. Except for those amines and diols which have a relatively high LOD, the LODs of the rest of the substances were 0.1-14.1μg/kg with a precision of 1.9-23.0% in 10% ethanol and were 0.1-20.2μg/kg with a precision of 2.5-19.6% in 3% acetic acid simulant. The LOD and precision in 95% ethanol simulant were 0.7-163.7μg/kg and 1.4-26.8%, resp. The proposed method can be applied for an overall screening of migrants from these three simulants at even trace levels, though attention should be paid to some specific analytes, e.g., diols and amines, which could have a high LOD and toxicity. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0Category: esters-buliding-blocks).

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. 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.Category: esters-buliding-blocks

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