Category: 15625-89-5

Suvarli, Narmin published the artcileSynthesis of Spherical Nanoparticle Hybrids via Aerosol Thiol-Ene Photopolymerization and Their Bioconjugation, Product Details of C15H20O6, the publication is Nanomaterials (2022), 12(3), 577, database is CAplus and MEDLINE.

Hybrid nanomaterials possess the properties of both organic and inorganic components and find applications in various fields of research and technol. In this study, aerosol photopolymerization is used in combination with thiol-ene chem. to produce silver poly(thio-ether) hybrid nanospheres. In aerosol photopolymerization, a spray solution of monomers is atomized, forming a droplet aerosol, which then polymerizes, producing spherical polymer nanoparticles. To produce silver poly(thio-ether) hybrids, silver nanoparticles were introduced to the spray solution Diverse methods of stabilization were used to produce stable dispersions of silver nanoparticles to prevent their agglomeration before the photopolymerization process. Successfully stabilized silver nanoparticle dispersion in the spray solution subsequently formed nanocomposites with non-agglomerated silver nanoparticles inside the polymer matrix. Nanocomposite particles were analyzed via scanning and transmission electron microscopy to study the degree of agglomeration of silver nanoparticles and their location inside the polymer spheres. The nanoparticle hybrids were then introduced onto various biofunctionalization reactions. A two-step bioconjugation process was developed involving the hybrid nanoparticles: (1) conjugation of (biotin)-maleimide to thiol-groups on the polymer network of the hybrids, and (2) biotin-streptavidin binding. The biofunctionalization with gold-nanoparticle-conjugates was carried out to confirm the reactivity of -SH groups on each conjugation step. Fluorescence-labeled biomols. were conjugated to the spherical nanoparticle hybrids (applying the two-step bioconjugation process) verified by Fluorescence Spectroscopy and Fluorescence Microscopy. The presented research offers an effective method of synthesis of smart systems that can further be used in biosensors and various other biomedical applications.

Nanomaterials published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C22H12F6O6S2, Product Details of C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Teyssandier, Joan published the artcilePolydiacetylene photocomposite material obtained by orthogonal chemistry: a detailed study at the mesoscopic scale, Formula: C15H20O6, the publication is Materials Advances (2022), 3(5), 2558-2567, database is CAplus.

A recent paper reported the spatially controlled photopolymerization and subsequent 3D printing of polydiacetylene (PDA) by orthogonal chem. using dual-wavelength polymerization Diacetylene monomers were dispersed in an acrylate resin to form a photocomposite in a two-step process: a first irradiation photopolymerizes the acrylate freezing the diacetylene monomers which were polymerized in a second step at a different wavelength. In the present article, for a better understanding of the organization of the generated functional composites, this process is studied at the mesoscopic scale by performing optical and SEM combined with correlative Raman, AFM and cathodoluminescence measurements. We have diluted the PCDA/acrylate blend in dichloromethane (CH₂Cl₂) and performed drop casting deposition on graphite. We discovered that the acrylate-diacetylene mixture promotes dramatically the formation of large PDA crystals. The confinement of PDA crystals inside the polyacrylate hindered their thermochromic blue-to-red transition, as revealed by correlative Raman microscopy. Cathodoluminescence measurements on the photocomposite have also shown that the light emission properties of PDAs are strongly modified by the induced confinement.

Materials Advances published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C5H11NO2S, Formula: C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Gencoglu, Turkan published the artcileA Water Soluble, Low Migration, and Visible Light Photoinitiator by Thioxanthone-Functionalization of Poly(ethylene glycol)-Containing Poly(β-amino ester), Safety of Trimethylolpropane triacrylate, the publication is Macromolecular Chemistry and Physics (2022), 223(13), 2100450, database is CAplus.

A novel photoinitiator (PI) is described here for low ecol. impact, p(PEGDA575-TX): It is water soluble, polymerizable, thioxanthone (TX) functional, and is a one-component poly(ethylene glycol)-based poly(β-amino ester). The PI is synthesized in one step via classical aza-Michael addition reaction between poly(ethylene glycol) diacrylate (Mn = 575 D) and amine functionalized TX (2-(2-aminoethoxy)-9H-thioxanthen-9-one). It absorbs at ≈ 404 nm (ε = 14 000-44 309) in water and can photodecompose with or without additives such as Et 4-(dimethylamino)benzoate (EDB) and bis-(4-tert-butylphenyl)-iodonium hexafluorophosphate (Iod). Although it is an effective one-component visible light PI for free radical polymerization of di- and tri(meth)acrylates, EDB or Iod will be favorable for synergistic effect. p(PEGDA575-TX) has higher initiating reactivity, reducing ability of oxygen inhibition and migration stability compared to TX, which make it environmental friendly.

Macromolecular Chemistry and Physics published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Safety of Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Launay, Valentin published the artcileSafe near infrared light for fast polymers surface sterilization using organic heaters, Product Details of C15H20O6, the publication is Materials Chemistry Frontiers (2022), 6(9), 1172-1179, database is CAplus.

Sterilization approaches using UV radiation (e.g. 254 nm), dry heat and moist heat have been widely reported in the literature. A breakthrough approach is presented here. In the present study, we proposed a most environmentally friendly approach for polymer surface sterilization using safe Near-IR (NIR) light to produce a powerful photothermal effect using organic NIR dyes as heaters. Markedly, well selected organic dyes strongly absorbing in the NIR range have been used as stimuli responsive compounds When excited upon NIR light, these heaters release the light energy to their surrounding environment in the form of heat. In this work, trimethylolpropane triacrylate (TMPTA) based polymers, used as benchmark materials for polymers or coatings, could reach high temperatures (>120°C) in a very short time scale (∼30 s). Using heater-containing polymers, sterilization experiments showed very good results with total eradication of bacteria (Escherichia coli) after only 2 min of NIR irradiation (2.55 W cm^-2). These results suggest that short irradiation flashes could be enough to sterilize contaminated surfaces. Moreover, irradiation tests have been performed on three NIR heaters in the NIR-II range (1000-1700 nm) for a better in-depth penetration. Indeed, almost 200°C could be reached by polymers in less than 1 min of NIR irradiation (2.5 W cm^-2). Therefore, NIR LED irradiation of heater-containing polymers constitutes here a robust, transportable and safe sterilization method.

Materials Chemistry Frontiers published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Product Details of C15H20O6.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Wang, Yuan published the artcileFormulation and Performance Characterization of Polymeric Dust Suppressants for Stockpiles, Name: Trimethylolpropane triacrylate, the publication is ACS Omega (2022), 7(11), 9891-9899, database is CAplus and MEDLINE.

With an aim at the dust problem of open dust sources in construction sites, open stockyards, mines, docks, and other areas, a polymer chem. dust inhibitor was developed in this study that is suitable for stockyards through theor. anal. and laboratory tests. Through a single-factor experiment and an orthogonal experiment, the viscosity value of dust suppressant and the hardness value of the crust taken as evaluation indexes, the optimal formula of dust suppressant for a pile was finally obtained after an anal. of range and variance: the optimum formulation of the dust suppressant for stockpiles was finally obtained by: 0.6%A + 0.2%B + 0.28%C + 0.7%D. The performance of the dust suppressant was characterized. The results showed that the longer the suppression time of suppressants, the better the weather resistance and environmental friendliness. Polymeric dust suppressants for stockpiles can effectively suppress the open dust, improve the air quality, protect the climate environment, and maintain people’s health and have a certain industrial application prospect.

ACS Omega published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C13H26N2, Name: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Nasrallah, Houssein published the artcileNew Coupling Agent Structures for Preparing Filler-Polymer Hybrid Materials Under Soft Irradiation Conditions, Recommanded Product: Trimethylolpropane triacrylate, the publication is Macromolecules (Washington, DC, United States) (2022), 55(15), 6394-6404, database is CAplus.

Bifunctional coupling agents have become unavoidable products for preparing hybrid materials with enhanced properties. They are at the origin of the homogeneous dispersion of the filler in the polymerizable matrix and the strong chem. interactions between the composites during the thermal reticulation and vulcanization processes. However, only few structures can play this role in a photo-curable matrix, which is widely applied today in various manufacturing processes (3D printing, cosmetics, medicine, etc). Developing new structures capable of working under accurate irradiation conditions can extend the use of coupling agents for preparing hybrid photo-curable materials for various applications (e.g., membranes, masks, and 2D- and 3D-nano/micro-objects). Recently, a new SPI (SPI-1) was proposed by our group and has revealed a high efficiency for preparing filler-polymer hybrid materials. Despite its efficiency, its activity is the highest under UV-B irradiation but lower under UV-A and inactive under visible light. In this paper, new coupling agent structures (bifunctional silane-based photoinitiators; SPIs) are synthesized and tested under various irradiation conditions extensively used in the photocuring fields (365, 385, and 405 nm). All the new structures demonstrate higher performance than the first SPI generation (SPI-1) under diverse light sources. More particularly, SPI-4, 5, and 6 (triphenylamine-based SPI) demonstrate a remarkable activity for preparing filler-polymer hybrid materials under visible-light irradiation (LED 405 nm). The efficiency of the new structures in the photopolymerization as well as in the grafting of the silica particles (used as a filler model) is elucidated. Finally, the enhancement of the mech. properties of the hybrid composite films and the possible use of the new approach in photolithog. are also demonstrated.

Macromolecules (Washington, DC, United States) published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Recommanded Product: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Valencia, L. M. published the artcileInduced damage during STEM-EELS analyses on acrylic-based materials for Stereolithography, SDS of cas: 15625-89-5, the publication is Polymer Degradation and Stability (2022), 110044, database is CAplus.

(Scanning) transmission electron microscopy, (S)TEM, offers a powerful characterization tool based on electron-matter interactions, highly valuable in materials science. However, the possible electron beam induced damage during (S)TEM measurements hinders the anal. of soft materials, such as acrylic resins. Importantly, acrylic resins offer an appealing playground for the development of novel composites with customized properties and convenient processing capabilities for 3D-printing technologies, including Stereolithog. (SLA). There are several factors preventing the optimal performance of TEM measurements applied to acrylic resins, among which we focus on the quality of the analyzed specimen (i.e., compromise between thickness and robustness, to achieve electron transparency while keeping the material integrity), particularly challenging when working with soft materials; the electrostatic charging/discharging effects, resulting in sample drift and related noise/artifacts; and the radiolysis and knock-on electron-induced damage, which directly degrade the material under study. We explore and compare different methodologies to obtain resin specimens suitable for (S)TEM anal., employed for the subsequent study of the electron-beam damage induced during STEM-EELS measurements. Furthermore, we propose likely underlying mechanisms explaining the acrylic resin degradation based on the different EELS monitored signals. On one hand, we assess the evolution of the carbon and oxygen content, as well as the material thinning as a function of the accumulated electron dose. On the other hand, we extract meaningful information from the spectral shape of carbon and oxygen K-edges upon increasing electron doses, unraveling likely degradation pathways. The earned understanding on the electron-beam induced damage and the determination of critical doses provide a useful framework for the implementation of (S)TEM techniques as useful tools to help in the smart engineering of acrylic-based composites for SLA.

Polymer Degradation and Stability published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C5H5BrN2, SDS of cas: 15625-89-5.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Kim, Hyun-Joong published the artcileStudy of UV-initiated polymerization and UV crosslinking of acrylic monomers mixture for the production of solvent-free pressure-sensitive adhesive films, Category: esters-buliding-blocks, the publication is Polymer Testing (2022), 107424, database is CAplus.

UV-polymerizable and UV-crosslinkable pressure-sensitive adhesive acrylic compositions are widely applied for high-quality carrier-free films, one-sided or double-sided self-adhesive tapes. Comprehensive studies of the properties of novel acrylic PSAs for carrier-free films or adhesive tapes were carried out. Solvent-free acrylic pressure-sensitive adhesive layers were UV-crosslinked using various photoreactive crosslinking agents. Polymer content during UV-polymerization, prepolymers viscosity, temperature changes of prepolymer during UV-initiated polymerization process were investigated. The chem. structure of prepolymer and polymerized acrylic film were examined using FTIR spectroscopy. Prepolymer mixtures were transferred on the transparent carriers to form 1 mm thick polymer films, and then UV-crosslinked after the addition of the selected acrylic crosslinker. Final adhesive films were then tested to evaluate their functional properties as the tack, peel adhesion, and shear strength at 20 °C and 70 °C. From the results reveal that both concentrations of acrylic acid in the prepolymer, and crosslinking agent in the final polymer layer, have a significant influence on the functional properties of the produced PSA films.

Polymer Testing published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Category: esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Ding, Chao published the artcileComputer-Aided Formulation of Magnetic Pastes for Composition Improvement for Power Magnetics, Synthetic Route of 15625-89-5, the publication is IEEE Transactions on Magnetics (2022), 58(5), 2000608, database is CAplus.

The size of magnetic components can be reduced with novel designs, but the intricate structures are difficult to make due to the limited sets of conventional magnetic core geometries and materials. Magnetic pastes have the flexibility of forming complicated structures with a pressure-less and low-temperature molding process, and are ideal for making the novel magnetic designs. The conventional approach of developing magnetic pastes involves time-consuming exptl. iterations to determine the optimal composition parameters. Instead of relying on the trial-and-error efforts, we explored a computer-aided approach to guiding the magnetic paste development by creating material’s microstructure by discrete element method (DEM) and studying the property by finite element method (FEM). From a starting formula with two different-sized spherical powders, we improved the composition guided by DEM and FEM, and studied the magnetic permeability vs. two variables: powder mixing ratio and magnetic volume fraction. The simulated permeability agreed well with the exptl. data with an average error of only 10%. With the computeraided formulation methodol. demonstrated in this work, one can develop magnetic pastes with min. exptl. efforts and explore different compositions to meet various magnetic design needs.Index Terms-Computer-aided formulation, discrete element method (DEM), finite element method (FEM), magnetic pastes.

IEEE Transactions on Magnetics published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Synthetic Route of 15625-89-5.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Chan, Kai-Hsiang published the artcileLong-period fiber gratings based on blue phase liquid crystal/polymer composites, Name: Trimethylolpropane triacrylate, the publication is Liquid Crystals (2022), 49(1), 50-58, database is CAplus.

A relatively simple and cost-effective method to realize a novel long-period fiber grating (LPFG) based on blue phase liquid crystal (BPLC) composites was proposed and exptl. demonstrated by implementing photopolymerization-induced phase separation (PIPS) through a binary photomask. The BPLC-polymer composite zones were obtained by a process of periodic UV light with phase separation of the BPLC mols. and UV-curable monomer mixture The appearance and optical characteristics of the proposed LPFGs have been studied exptl. Exptl. results show that optimum PIPS process conditions are critical for achieving a reliable LPFG-based fiber device. Compared with the previously reported methods, this new technique for designing and making an LPFG is more cost-effective and highly flexible due to the ease in manufacturing of the grating composite structure in the all-fiber system, which can provide great potential for photonic applications.

Liquid Crystals published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Name: Trimethylolpropane triacrylate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics