Tag: M.W=250-300

do Nascimento, Fernando H. published the artcileFast construction of polymer monolithic columns inside fluorinated ethylene propylene (FEP) tubes for separation of proteins by reversed-phase liquid chromatography, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is polymer monolithic column fluorinated ethylene propylene protein RPHPLC; Egg white; Fluoropolymer tubes; Liquid chromatography; Monolithic columns; Photografting; Urine.

This paper describes the preparation of polymer monolithic columns in the confines of fluorinated ethylene propylene (FEP) tubes. These tubes are cheap, chem. stable, and widely used in flow anal. laboratories UV-initiated grafting with 5% benzophenone in methanol for 1 h activated the internal surface walls, thus enabling the further covalent binding of ethylene glycol dimethacrylate (EDMA) from a 15% solution in methanol, also via photografting. Both steps used 254 nm radiation under a potency of 120 mJ cm2. ATR-FTIR measurements revealed carbonyl, alkyl and vinyl groups in the functionalized FEP. The d. of vinyl groups was high enough to firmly attach a poly(lauryl methacrylate-coethylene glycol dimethacrylate) monolith in 120 × 1.57 mm internal diameter tubes, prepared via photopolymerization The total preparation lasts <2-h. The columns were permeable, (1.58 ± 0.06) x 10-13 m2, providing reproducible chromatog. parameters of retention times, retention factor, selectivity, and resolution The monoliths were stable at flow rates of 500μL min-1, collapsing only at flow rates >700μL min-1, a condition that increased the backpressure over 1000 psi (experiments at the room temperature). The separation of proteins by reversed-phase liquid chromatog. demonstrated the efficiency of the columns. Determination of egg white proteins (ovalbumin and lysozyme) and myoglobin in spiked urine proved the applicability to the anal. of real samples.

Talanta published new progress about Egg white, poultry. 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

Zhao, Shuyue published the artcileScreening and Matching Amphiphilic Cationic Polymers for Efficient Antibiosis, Safety of Dodecyl 2-methylacrylate, the main research area is antibacterial cationic copolymer quaternary ammonium salt chain length PEGylation.

The amphiphilic cationic polymers that mimic antimicrobial peptides have received increasing attention due to their excellent antibacterial activity. However, the relationship between the structure of cationic polymers and its antibacterial effect remains unclear. In our current work, a series of PEG blocked amphiphilic cationic polymers composed of hydrophobic alkyl-modified and quaternary ammonium salt (QAS) moieties have been prepared The structure-antibacterial activity relationship of these cationic polymers was investigated against E. coli and S. aureus, including PEGylation, random structure, mol. weights, and the content and lengths of the hydrophobic alkyl side chains. The results indicated that PEGylated random amphiphilic cationic copolymer (mPB35/T57) showed stronger antibacterial activity and better biocompatibility than the random copolymer without PEG (PB33/T56). Furthermore, mPB35/T57 with appropriate mole fraction of alkyl side chains (falkyl = 0.38), d.p. (DP = 92), and four-carbon hydrophobic alkyl moieties was found to have the optimal structure that revealed the best antibacterial activities against both E. coli (MIC = 8μg/mL, selectivity > 250) and S. aureus (MIC = 4μg/mL, selectivity > 500). More importantly, mPB35/T57 could effectively eradicate E. coli biofilms by killing the bacteria embedded in the biofilms. Therefore, the structure of mPB35/T57 provided valuable information for improving the antibacterial activity of cationic polymers.

Biomacromolecules published new progress about Antibiofilm agents. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Safety of Dodecyl 2-methylacrylate.

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

Lee, Joonbum published the artcileCopolymerization of zwitterionic carboxybetaine and various hydrophobic groups to optimize antifouling and biocompatible properties, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is zwitterionic carboxybetaine hydrophobic group copolymerization antifouling biocompatible property optimization.

Zwitterionic polymers including carboxybetaine derivatives are widely utilized as biocompatible antifouling materials in the way of copolymerization for the enhanced functionality. The aim of this study was to optimize the structure of copolymer in order to present a versatile antifouling property against both polar and nonpolar foulants as well as biocompatibility. Copolymers of zwitterionic carboxybetaine and several hydrophobic monomers were synthesized and coated on the glass substrate by a simple dip-coating method. The antifouling performance against polar and nonpolar foulants, adhesion property of cells and platelets on the coated surfaces were investigated. The optimal copolymer-coated surface with low fouling and fewer thrombotic events was shown to be a carboxybetaine copolymer in combination with the trimethylsiloxy group. This result suggests that elaborate copolymerization makes it possible to create a versatile antifouling surface using a simple and practical method without compromising the functionality of each monomer.

Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) published new progress about Antifouling agents. 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

Choinska, Renata published the artcileBiocontrol ability and volatile organic compounds production as a putative mode of action of yeast strains isolated from organic grapes and rye grains, Safety of Ethyl pentadecanoate, the main research area is organic grape rye grain yeast; Anti-mold activity; Biofungicide; Plant pathogens; Yeast antagonist.

Abstract: The inhibiting activity of three yeast strains belonging to Pichia kudriavzevii, Pichia occidentalis, and Meyerozyma quilliermondii/Meyerozyma caribbica genera against common plant pathogens representing Mucor spp., Penicillium chrysogenum, Penicillium expansum, Aspergillus flavus, Fusarium cereals, Fusarium poae, as well as Botrytis cinerea genera was investigated. The yeast strains tested had a pos. impact on growth inhibition of all target plant pathogens. The degree of inhibition was more than 50% and varied depending on both the yeast antagonist and the mold. Et esters of medium-chain fatty acids, phenylethyl alc., and its acetate ester prevailed among the analyzed volatile organic compounds (VOCs) emitted by yeasts in the presence of the target plant pathogens. Due to the method used, assuming no contact between the antagonist and the pathogen, the antagonistic activity of the yeast strains studied resulted mainly from the production of biol. active VOCs. Moreover, the antagonistic activity was not only restricted to a single plant pathogen but effective towards molds of different genera, making the yeast strains studied very useful for potential application in biol. control.

Antonie van Leeuwenhoek published new progress about Aspergillus flavus. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Safety of Ethyl pentadecanoate.

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

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

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

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

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

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