Month: December 2022

Zhang, Zhuo published the artcileEmulsion-Based Organohydrogels with Switchable Wettability and Underwater Adhesion toward Durable and Ecofriendly Marine Antifouling Coatings, HPLC of Formula: 142-90-5, the main research area is emulsion organohydrogel switchable wettability underwater durable marine antifouling coating.

Marine biofouling has become an extensive problem, resulting in severe harm to marine facilities and maritime operations. Extensive efforts have been carried out to develop effective antifouling strategies for practical applications. Nevertheless, durable and renewable antifouling surfaces with broad-spectrum fouling resistance are in pressing need. Here, antifouling charged organohydrogels (COHGs) possessing amphiphilic and zwitterionic heteronetworks are fabricated by facile emulsion polymerization The synergistic collaboration of covalent linkages, electrostatic interaction, and hydrogen bonding endow the COHGs with excellent mech. properties, including stretchability, compressibility, and recoverability. Owing to the spatial restraints between hydrophilic and oleophilic chains in interpenetrating heteronetworks, the COHGs exhibited significantly low-swellable behavior whether in water or in oil, beneficial to durable applications without impairment of intrinsic performances. The amphiphilic heteronetworks could experience structure rearrangement in response to the surrounding solvents (water or hexadecane), leading to switchable surface wettability. Moreover, the COHGs possess strong wet adhesion to various organic and inorganic surfaces due to synergetic interactions existing at the interface between COHGs and operational substrates, including the hydrophobic effect, electrostatic interaction, and nonswelling behavior, which greatly avoid tedious operation processes during practical application. As for the relationships between the structure and antifouling performances, the elastic surfaces combined with amphiphilic and zwitterionic features reveal remarkable fouling resistance (Navicula sp. and Dunaliella tertiolecta) and recyclable utilization. The COHGs may provide an approach to develop high-performance and ecofriendly antifouling materials.

ACS Applied Polymer Materials published new progress about Adhesion, physical. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, HPLC of Formula: 142-90-5.

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

Liang, Zhihao published the artcileSynthesis of UV and thermal dual curing oligomer for solder resist ink using ink-jet printing, Related Products of esters-buliding-blocks, the main research area is UV thermal curable oligomer solder resist jet printing ink.

A solder resist ink for inkjet printing containing the UV and thermal dual curable oligomer was introduced. The oligomer were prepared via copolymerization of an epoxy monoacrylate and three acrylic monomers, and the structures were determined by Fourier transfer IR. Both UV curing process and thermostability were monitored by UV differential scanning calorimetry and thermogravimetric anal. For the photoreaction process, the oligomer using Lauryl methacrylate as the copolymerization monomer possessed the highest reactivity and conversion of carbon-carbon double bond. The oligomers had excellent thermostability, just losing 5.9% at 288°. The solder resist inks containing the oligomers and jetting by the inkjet printer were tested with the adhesion, soldering resistance, and other performances, presenting the outstanding heat resistance and wide application prospects. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 136, 47428.

Journal of Applied Polymer Science published new progress about Adhesion, physical. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Related Products of esters-buliding-blocks.

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

Zeng, Runpeng published the artcileHydrophobic association and ionic coordination dual crossed-linked conductive hydrogels with self-adhesive and self-healing virtues for conformal strain sensors, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is conductive hydrogels adhesive self healing virtue strain sensor.

As a promising functional material, conductive hydrogel has attracted extensive attention, especially in flexible sensor field. Despite the recent developments, current hydrogels still experience several issues, such as limited stretchability, lack of self-recovery and self-healing capability, and insufficient self-adhesion. Herein, dual cross-linked (DC) poly (AA-co-LMA)SDS/Fe3+ hydrogels are fabricated subtly on the basis of ionic coordination interactions and the poly (AA-co-LMA)SDS hydrophobic association networks, which may provide one plausible routine to compensate the mentioned drawback of hydrogels. The hydrophobic association and ionic coordination networks work synergistically to endow the hydrogels remarkable stretchability (1200%), high-fracture strength ( âˆ?20 kPa), and excellent self-healing capability. In addition, the DC hydrogel-based strain sensors displayed a broad sensing range (0 âˆ?900%), conspicuous sensitivity (strain 0% âˆ?200%, gauge factor = 0.53; strain 200% âˆ?500%, gauge factor = 1.23; strain 500% âˆ?900%, gauge factor = 2.09), and pronounced durability. What′s more, the self-adhesive feature ensures the strain sensor always forming a good conformal contact with the skin during human movements and displaying remarkable bidirectional detection capability.

Journal of Polymer Science (Hoboken, NJ, United States) published new progress about Adhesion, physical. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

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

Santamaria, Pilar published the artcileNitrogen sources added to must: effect on the fermentations and on the tempranillo red wine quality, Safety of Ethyl 3-hydroxybutanoate, the main research area is nitrogen supplementation alc malolactic fermentation Tempranillo red wine quality.

Nitrogen supplementation in musts or during the alc. fermentation is a common practice to promote fermentations In this study, the impact of the supplementation of two different sources of nitrogen during Tempranillo red wine elaboration was studied. Mineral and organic nitrogen was added after the exponential yeast growth phase and during winemaking, examining its impact on the alc. and malolactic fermentation development, on the aromatic wine composition and on the nitrogenous wine composition The nitrogen supplementation did not provide neither significant advantages in kinetics and fermentations time, nor differences in the chem. wine composition The aromatic composition of the wines improved with the addition of inorganic nitrogen, although its organoleptic evaluation was not favored. Moreover, the concentration of amino acids in wines increased slightly after the malolactic fermentation and significantly during the stabilization time, especially with organic nitrogen addition However, the synthesis of biogenic amines did not increase in wines neither after the malolactic fermentation, nor after the storage period.

Fermentation published new progress about Acidity (volatile). 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, Safety of Ethyl 3-hydroxybutanoate.

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

Dhamo, Lorena published the artcileEfficient Luminescent Solar Concentrators Based on Environmentally Friendly Cd-Free Ternary AIS/ZnS Quantum Dots, Related Products of esters-buliding-blocks, the main research area is silver indium zinc sulfide quantum dot solar concentrator.

Luminescent solar concentrators (LSC) allow to obtain renewable energy from building integrated photovoltaic systems. As promising efficient and long-term stable LSC fluorophores semiconductor nanocrystals like quantum dots (QDs) with size and composition tunable optoelectronic properties have recently emerged. The most popular II/VI or IV/VI semiconductor QDs contain, however, potentially hazardous cadmium or lead ions, which is a bottleneck for com. applications. A simple aqueous based, microwave-assisted synthesis for environmentally friendly and highly emissive AgInS2/ZnS QDs is developed using 3-mercaptopropionic acid (MPA) and glutathione (GSH) and their incorporation into polylaurylmethacrylate (PLMA) polymer slabs integrable in LSC devices (10.4 x 10.4 x 0.2 cm3, G = 12.98). With this simple approach, optical power efficiencies (OPE) of 3.8% and 3.6% and optical quantum efficiencies (OQE) of 24.1% and 27.4% are obtained, which are among the highest values yet reported.

Advanced Optical Materials published new progress about Absorption spectra. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Related Products of esters-buliding-blocks.

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

Hernandez-Ruiz, Raquel published the artcileMo-Catalyzed One-Pot Synthesis of N-Polyheterocycles from Nitroarenes and Glycols with Recycling of the Waste Reduction Byproduct. Substituent-Tuned Photophysical Properties, Related Products of esters-buliding-blocks, the main research area is polyheterocycle preparation green chem; nitroarene glycol tandem reduction imine formation intramol cyclization oxidation; dioxomolybdenum complex catalyst waste reuse; N-heterocycles; dioxomolybdenum; nitroaromatics; photophysical properties; reuse of waste.

A catalytic domino reduction-imine formation-intramol. cyclization-oxidation for the general synthesis of a wide variety of biol. relevant N-polyheterocycles, such as quinoxaline- and quinoline-fused derivatives, and phenanthridines, is reported. A simple, easily available, and environmentally friendly dioxomolybdenum(VI) complex has proven to be a highly efficient and versatile catalyst for transforming a broad range of starting nitroarenes involving several redox processes. Not only is this a sustainable, step-economical as well as air- and moisture-tolerant method, but also it is worth highlighting that the waste byproduct generated in the first step of the sequence is recycled and incorporated in the final target mol., improving the overall synthetic efficiency. Moreover, selected indoloquinoxalines have been photophys. characterized in cyclohexane and toluene with exceptional fluorescence quantum yields above 0.7 for the alkyl derivatives

Chemistry – A European Journal published new progress about Absorption spectra. 623-50-7 belongs to class esters-buliding-blocks, name is Ethyl 2-hydroxyacetate, and the molecular formula is C4H8O3, Related Products of esters-buliding-blocks.

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

Yartseva, Vitalia M. published the artcileLyophilic and Sorption Properties of Chitosan Aerogels Modified with Copolymers Based on Glycidyl Methacrylate and Alkyl Methacrylates, Application of Dodecyl 2-methylacrylate, the main research area is chitosan GMA alkyl methacrylate copolymer aerogel sorbent oil sorption; aerogel; chitosan; grafted copolymers; hydrophobicity; oleophilicity; sorption properties.

This paper discusses the influence of the structure of copolymers based on glycidyl methacrylate and alkyl methacrylates with C6-C18 hydrocarbon side groups on the wettability and sorption properties of surface-modified chitosan aerogels. The grafting of copolymers onto the surface of aerogels was confirmed by elemental anal., XPS, and Fourier-transform IR spectroscopy. As a result of the modification, with an increase in the amount of the hydrocarbon substituent alkyl methacrylate, the surface of the resulting materials became hydrophobic with contact angles in the range of 146-157°. At the same time, the water absorption of the aerogels decreased by a factor of 30 compared to that for unmodified aerogels, while the sorption capacity for light oil, diesel fuel, and synthetic motor oil remained at the level of more than 30 g/g. Chitosan aerogels with grafted copolymers based on glycidyl methacrylate and alkyl methacrylates retain biodegradation capacity; however, compared to unmodified chitosan, this process has an induction period.

Polymers (Basel, Switzerland) published new progress about Absorption (water). 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Application of Dodecyl 2-methylacrylate.

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

Huajaikaew, Eakkapap published the artcileComb-like poly(dodecyl methacrylate) modified SiO2 nanoparticles as nanohybrid coatings: Electron beam grafting and tuning superhydrophobic/water-repellent surface studies, Related Products of esters-buliding-blocks, the main research area is polydodecyl methacrylate silica nanoparticle nanohybrid coating paper superhydrophobicity.

The current research focuses on tailoring silica nanoparticles (SiO2NPs) with comb-like poly(dodecyl methacrylate) (PDMA) brushes and tuning coating parameters based on roller coating process for confining surface morphol. towards hydrophobic and superhydrophobic including water-repellent surface. Electron beam (EB) induced a simultaneous “”graft-from”” polymerization of DMA monomer onto vinyl modified SiO2NPs (SiO2NPs-V) was established in an inventive castor oil/ethanol mixed solvent. Functional surface chem. of SiO2NPs and nanorough surface topog. controlled by NPs content and coating thickness mainly influences the hydrophobic/superhydrophobic, water-repellent, and water absorption properties including gloss values, whiteness and yellowness index of coated papers. The papers coated with SiO2NPs-V-PDMA/PVA of 6-10 wt% with the thickness of ~10-14 μm exhibited matt surface and provided superhydrophobic and water-repellent properties. The coated paper has a desirable and stable water contact angle of 152°, low droplet adhesion with lower dynamic tilting angle (<5°), and 5.3-folds reduced water absorption. Our investigation provides compelling evidence that the SiO2NPs-V-PDMA obtained from EB modification and the developed coating formula for roller-based coating process are realistic approaches for hydrophobic/superhydrophobic coatings and printing inks for paper-based industries. Progress in Organic Coatings published new progress about Absorption (water). 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Related Products of esters-buliding-blocks.

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

Tabanelli, Tommaso published the artcileTransfer Hydrogenation of Methyl and Ethyl Levulinate Promoted by a ZrO2 Catalyst: Comparison of Batch vs. Continuous Gas-Flow Conditions, SDS of cas: 539-88-8, the main research area is transfer hydrogenation methyl ethyl levulinate Zirconia catalyst.

The catalytic conversion of Me and Et levulinates into γ-valerolactone (GVL) by using methanol, ethanol, and 2-propanol as the H-donor/solvent, promoted by the ZrO2 catalyst, is described as carried out under both batch and gas-flow conditions. Under batch conditions, 2-propanol was found to be the best H-donor mol., with Et levulinate giving the highest yield in GVL. The reactions occurring under continuous gas-flow conditions were found to be much more efficient, also showing excellent yields in GVL when EtOH was used as the reducing agent. These experiments clearly show that the ability to release hydrogen from the alc. H-donor/solvent is the main factor driving CTH processes, while the tendency to attack the esteric group is the key step in the formation of transesterification products.

ACS Sustainable Chemistry & Engineering published new progress about Transesterification. 539-88-8 belongs to class esters-buliding-blocks, name is Ethyl 4-oxopentanoate, and the molecular formula is C7H12O3, SDS of cas: 539-88-8.

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

Piras, Carmen C. published the artcileFacile Method to Obtain Low DS β-ketoesters and Esters of Microfibrillated Cellulose, Category: esters-buliding-blocks, the main research area is microfibrillated cellulose acetoacetate beta ketoester.

Herein we report a facile approach to prepare low DS microfibrillated cellulose acetoacetates and esters. All the reactions were performed directly in cellulose slurries without the need of solvent evaporation, which can cause hornification, and without damaging the fibers. The products obtained display the inserted functionalities while retaining the main features and morphol. of the unmodified cellulose fibers. In comparison to previously reported synthetic routes, this method is cost-effective, more environmentally friendly through omission of extra solvents and the possibility of reusing the dispersing agents, which can be recovered by distillation

Fibers and Polymers published new progress about Transesterification. 5405-41-4 belongs to class esters-buliding-blocks, name is Ethyl 3-hydroxybutanoate, and the molecular formula is C6H12O3, Category: esters-buliding-blocks.

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