Tag: M.W=400-500

Sun, Chang published the artcileImitated Core-Shell Molecularly Imprinted Membranes for Selective Separation Applications: A Synergetic Strategy by Polydopamine and SiO2, Quality Control of 7575-23-7, the main research area is silica polydopamine core shell molecularly imprinted membrane selective separation.

Development of high-efficiency separation materials with specific recognition sites has become an urgent and important task. Herein, a synergetic strategy based on polydopamine (pDA) and silicon dioxide nanoparticles (SiO2) was successfully designed and developed for the preparation of imitated core-shell-based cloxacillin-imprinted nanocomposite membranes (ICCIMs-D/S). Cloxacillin (Col) was selected as the template resulting from the potential threat to environment and human health. As to the synthesis procedure of ICCIMs-D/S, the pDA-modified layers were uniformly loaded onto substrate membranes by developing an elevated phase transformation method. Based on it, the synergy processes of pDA and SiO2 could be achieved on surface of porous membranes. The ICCIMs-D/S with Col-imprinted recognition sites were finally synthesized by the photo-initiated “”mercapto-alkenes click chem.”” method using methacrylic acid as functional monomers. Notably, the satisfactory rebinding selectivity (α>4.0) and permselectivity (β>4.0) with outstanding regeneration performance (only 5.11% decrease after ten regeneration cycles) indicated the superior selectivity and stability of the as-obtained ICCIMs-D/S. The preparation strategy and ICCIMs-D/S developed in this work is expected to provide a feasible idea for selective separation of Col from wastewater.

Journal of the Taiwan Institute of Chemical Engineers published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Quality Control of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kramer, Stanko published the artcileHierarchically Porous Microspheres by Thiol-ene Photopolymerization of High Internal Phase Emulsions-in-Water Colloidal Systems, SDS of cas: 7575-23-7, the main research area is thiol ene photopolymerization porous microsphere functionalization dye adsorption; adsorption; methylene blue; multiple emulsions; polyHIPE; porous microspheres; porous polymers; suspension polymerization; thiol-ene polymerization.

A facile method for the preparation of hierarchically porous spherical particles using high internal phase water-in-oil-in-water (w/o/w) double emulsions via the photopolymerization of the water-in-oil high internal phase emulsion (w/o HIPE) was developed. Visible-light photopolymerization was used for the synthesis of microspherical particles. The HIP emulsion had an internal phase volume of 80% and an oil phase containing either thiol pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) or trimethylolpropane tris(3-mercaptopropionate) (TMPTMP) and acrylate trimethylolpropane triacrylate (TMPTA). This enabled the preparation of microspheres with an open porous morphol., on both the surface and within the microsphere, with high yields in a batch manner. The effect of the thiol-to-acrylate ratio on the microsphere diameter, pore and window diameter, and degradation was investigated. It is shown that thiol has a minor effect on the microsphere and pore diameter, while the acrylate ratio affects the degradation speed, which decreases with increasing acrylate content. The possibility of free thiol group functionalization was demonstrated by a reaction with allylamine, while the microsphere adsorption capabilities were tested by the adsorption of methylene blue.

Polymers (Basel, Switzerland) published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, SDS of cas: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Aydin Urucu, Oya published the artcileSelective molecularly imprinted polymer for the analysis of chlorpyrifos in water samples, COA of Formula: C17H28O8S4, the main research area is molecularly imprinted polymer water sample chlorpyrifos removal.

In this paper, a new molecularly imprinted solid-phase extraction (MISPE) method was described for the determination of the chlorpyrifos in water samples. A thiol-ene based UV-cured polymer was prepared by mixing glyoxal bis (-diallyl acetal), pentaerythritol tetrakis (3-mercaptopropionate), polyethylene glycol diacrylate (PEGDA), and photoinitiator. Chlorpyrifos was added to the prepared polymer as a template analyte, and its anal. was performed by gas chromatog. with mass detection (GC-MS). The influence of some anal. parameters was studied. We found that the use of the molecularly imprinted polymer (MIP) UV-cured disk provides an easy, selective, and available solution for removing chlorpyrifos from water samples.

Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands) published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, COA of Formula: C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Aili published the artcileControllable click synthesis of poly(ionic liquid)s by surfactant-free ionic liquid microemulsions for selective dyes reduction, Computed Properties of 7575-23-7, the main research area is surfactant free polyionic liquid preparation dye reduction property.

This work reveals the synthesis of poly(ionic liquid)s (poly-ILs) with controllable beading network structure. The synthesis route involved the formation of novel surfactant-free ionic liquid microemulsions and the in situ photo-initiated thiol-ene “”click”” reaction. Notably, the beading size of poly-IL’s networks was adjusted by altering the component proportion of the designed surfactant-free ionic liquid microemulsion. To characterize the as-prepared polymers, FTIR, DLS, NMR, TGA, DSC, SEM and UV-vis were used, and the adsorption isotherm/kinetics studies were carried out. The results show that poly-ILs exhibit distinct adsorption selectivity and high adsorption capacity for nonionic dye disperse red (1080 mg/g), and these dye absorption polymers can be easily regenerated and recycled without a significant decrease. Therefore, the designed poly-ILs indicate remarkable potential in the application of dying wastewater treatment.

Reactive & Functional Polymers published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Computed Properties of 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wu, Ke published the artcileA humidity sensor based on ionic liquid modified metal organic frameworks for low humidity detection, Safety of Pentaerythritol tetra(3-mercaptopropionate), the main research area is ionic liquid metal organic framework polyelectrolyte humidity sensor stability.

Low humidity detection has always been a challenge in the field of humidity detection. Humidity sensors base on ionic liquid modified metal organic frameworks (MOFs) derived polymer films were prepared in this work. The ionic liquid ligand was uniformly introduced in the frameworks of UIO-66 to enhance the hydrophilicity of sensing materials, the caused defects sites are beneficial for adsorption and desorption, and the MOFs based functional films were easily obtained by in situ photoinduced thiol-ene click reaction. The obtained humidity sensor exhibits a linear response in low relative humidity (RH) range (5% RH – 30% RH) with a tiny humidity hysteresis (âˆ?.2% RH) and short response time to humidity change (response/recovery time is 0.6 s/1.7 s, resp.).

Sensors and Actuators, B: Chemical published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Safety of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Haney, Bobby published the artcileStimuli responsive Janus microgels with convertible hydrophilicity for controlled emulsion destabilization, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is Janus microgel stimulus hydrophilicity emulsion destabilization.

Although the utilization of rigid particles can afford stable emulsions, some applications require eventual emulsion destabilization to release contents captured in the particle-covered droplet. This destabilizing effect is achieved when using stabilizers that respond to controlled changes in environment. Microgels can be synthesized as stimuli responsive polymeric gel networks that adsorb to oil/water interfaces and stabilize emulsions. These particles are commonly hydrogels that swell and collapse in water in response to environmental changes. However, amphiphilic functionality is desired to enhance the adsorption abilities of these hydrogels while maintaining their stimuli responsivity. Microfluidic techniques are used to synthesize Janus microgels with two opposing stimuli responsive hemispheres. The particles have a temperature responsive domain connected to a pH responsive network where each side changes its hydrophilicity in response to a change in temperature or pH, resp. The Janus microgels are amphiphilic in acidic conditions at 19 °C and alk. conditions at 40 °C, while the opposite conditions cause a reduction of the amphiphilicity. By stabilizing emulsions with these dual responsive microgels, “”smart”” droplets that respond to environmental cues are formed. Emulsion droplets remain stable with smaller diameters when aqueous solution conditions favor amphiphilic particles yet, coalesce to larger droplets upon changing pH or temperature

Soft Matter published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mortazavian, Hamid published the artcileUnderstanding the role of shape and composition of star-shaped polymers and their ability to both bind and prevent bacteria attachment on oral relevant surfaces, Name: Pentaerythritol tetra(3-mercaptopropionate), the main research area is star shaped polymer bind bacteria attachment oral relevant surface; acrylic acid; antibacterial; antifouling; composition; dental; hydrophobicity; hydroxyapatite; oral; polymer; star-shaped.

In this study, we have prepared a series of 4- and 6-arm star-shaped polymers with varying mol. weight and hydrophobicity in order to provide insight into the role and relationship that shape and composition have on the binding and protecting of oral relevant surfaces (hydroxyapatite, HAP) from bacteria colonization. Star-shaped acrylic acid polymers were prepared by free-radical polymerization in the presence of chain transfer agents with thiol groups, and their binding to the HAP surfaces and subsequent bacteria repulsion was measured. We observed that binding was dependent on both polymer shape and hydrophobicity (star vs. linear), but their relative efficacy to reduce oral bacteria attachment from surfaces was dependent on their hydrophobicity only. We further measured the macroscopic effects of these materials to modify the mucin-coated HAP surfaces through contact angle experiments; the degree of angle change was dependent on the relative hydrophobicity of the materials suggesting future in vivo efficacy. The results from this study highlight that star-shaped polymers represent a new material platform for the development of dental applications to control bacterial adhesion which can lead to tooth decay, with various compositional and structural aspects of materials being vital to effectively design oral care products.

Journal of Functional Biomaterials published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Name: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Samanta, Archana published the artcileCharge Regulated Diffusion of Silica Nanoparticles into Wood for Flame Retardant Transparent Wood, Application of Pentaerythritol tetra(3-mercaptopropionate), the main research area is flame retardant transparent silica nanoparticle wood polymer biocomposite property.

The preparation of wood substrates modified by charged inorganic nanoparticles (NPs) diffusing into the internal cell wall structure is investigated for generating functional properties. The flammability problem of wood biocomposites is addressed. NPs applied from colloidal sols carry charge to stabilize them against aggregation. The influence of charge on particle diffusion and adsorption should play a role for their spatial distribution and localization in the wood substrate biocomposite. It is hypothesized that improved dispersion, infiltration, and stability of NPs into the wood structure can be achieved by charge control diffusion, also restricting NP agglomeration and limiting distribution to the wood cell wall. Cationic and anionic silica NPs of �0 nm are therefore allowed to diffuse into bleached wood. The influence of charge on distribution in wood is investigated as a function of initial sol concentration Transparent wood is fabricated by in situ polymerization of a thiol-ene in the wood pore space. These biocomposites demonstrate excellent flame retardancy with self-extinguishing characteristics. The approach has potential for com. fabrication of flame retardant transparent composites for glazing and other building applications.

Advanced Sustainable Systems published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Application of Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Esen, Cansu published the artcileThiol-ene polymer beads via liquid-liquid printing: armored interfaces and photopolymerization via graphitic carbon nitride, Name: Pentaerythritol tetra(3-mercaptopropionate), the main research area is carbon nitride polymer bead thiol ene photopolymerization.

Polymerization of multifunctional thiol-ene mols. is attractive as a proof of concept in photopolymerization, yet the formation of a bead structure is highly restricted. This manuscript will show graphitic carbon nitride based liquid-liquid printing and subsequent photopolymerization to form thiol-ene polymer beads with extreme simplicity and potential scalability.

Nanoscale Advances published new progress about Adsorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Name: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Tao published the artcileSulfonated Poly(arylene ether sulfone) Multi-Block Copolymers with Selectively Cross-Linked Domains for Proton Exchange Membranes, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is sulfonated polyarylene ether sulfone proton exchange membrane.

A facile design of sulfonated poly(arylene ether sulfone) multi-block copolymer membranes with selectively cross-linked hydrophobic domains is reported for proton exchange membranes. The cross-linkable linear multi-block copolymers are prepared via coupling telechelic hydrophilic disulfonated oligomers (BPS100) and telechelic hydrophobic oligomers (PPA0) containing cross-linkable allyl-derivatized phenolphthalein moieties. The cross-linked membranes are prepared through UV-initiated thiol-ene crosslinking reactions between allyl-functionalized hydrophobic blocks with pentaerythritol tetrakis(3-mercaptopropionate) as a cross-linker. With highly cross-linked hydrophobic blocks and flexible hydrophilic blocks, the selectively cross-linked multiblock copolymer membranes exhibit remarkably improved dimensional stability and proton conductivity compared to the cross-linked random copolymers. The cross-linked membrane with the longest hydrophilic block length shows a remarkable proton conductivity of 123 mS/cm with a suppressed volume swelling ratio of 25% at 25°C. At the highest ion exchange capacity level (2.25 meq/g) and the longest block length, the cross-linked multi-block copolymer membrane outperforms Nafion over the full relative humidity range.

ACS Applied Polymer Materials published new progress about Absorption. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate).

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts