Tag: M.W=400-500

Zhou, Le published the artcileOptical diffusers based on uniform nano-sized polymer balls/nematic liquid crystals composite films, Formula: C17H28O8S4, the main research area is optical diffuser nematic liquid crystal film.

Optical diffusers are promising diffusing materials in the optical devices such as monitors, projectors, fiber optics, light-emitting diode (LED) systems and liquid crystal displays (LCDs). We report optical diffusers comprising uniformly distributed nano-sized polymer balls/nematic liquid crystals (LCs) by UV click reaction of ene monomer and thiol monomer. By optimizing the mass ratio 1:1 of ene and thiol, of which the average diameter of the corresponding nano-sized polymer balls is about 900 nm, relatively high optical transmission and haze with 88.99% and 94.49% are yielded, resp. Furthermore, by controlling the curing time, the average diameter of nano-sized polymer balls can be reduced to 810 nm, and the developed film exhibits high transmission (98.49%) without sacrificing the high haze (91.77%). This paper demonstrates that UV click reaction is an economical approach to fabricate optical diffusers in a controllable manner.

Liquid Crystals published new progress about Microstructure. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Formula: C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ahn, Jinhyeok published the artcileThiol-ene UV-curable sponge electrolyte for low-voltage color changing wearable tactile device, Category: alcohols-buliding-blocks, the main research area is sponge electrolyte low voltage color changing wearable tactile device.

Interest in developing advanced flexible materials that are stable, mech. deformable, lightweight, cost-effective, and eco-friendly is ever-growing to support high-performance state-of-the-art wearable electronic devices. Another critical requirement of wearable devices is low energy consumption during operation for prolonged use. Herein, we demonstrate a compressible electrochromic device (ECD) using the three-dimensional (3D) compressible sponge electrolyte layer. A 3D porous sponge was fabricated using a facile and eco-friendly method of leaching sugar, a pore-creating agent, from an UV-cured skeletal structure. The simple structure of a compressible ECD is advantageous for its applicability as an optical tactile sensor device. A low-voltage operation, as evidenced by optical measurements, can ensure the long-term performance of the sensor. Furthermore, the color change in the ECD that occurs with the applied pressure acts as an effective pressure-sensing mechanism for the system involved. Thus, compressible sponge electrolytes layers are promising for various wearable tactile device applications.

Polymer published new progress about Color (change). 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Shen, Wenbo published the artcileElectrically switchable light transmittance of epoxy-mercaptan polymer/nematic liquid crystal composites with controllable microstructures, Product Details of C17H28O8S4, the main research area is epoxy resin mercaptan nematic liquid crystal composite light transmittance; electrooptical property.

In this paper, we report the design, preparation and properties of epoxy-mercaptan polymer/nematic liquid crystal (LC) composites with elec. switchable optical transmittance. It is found that the polymer microstructure can be regulated from porous structure to microspheres or beads by appropriately modulating the curing temperature, the mol. structure of mercaptan, as well as the compositions of epoxy, mercaptan and nematic LC host. Under an external elec. field, the thin films based on such composites can switch from opaque to transparent. The electro-optical performance is found to be highly dependent on the polymer microstructures and the optimum characteristics can be achieved in the composite with a microstructure of smaller microspheres. The possible mechanism for the formation of polymer microspheres and the effects of the microstructures on the electro-optical characteristics of the composites are also discussed. This work is expected to provide an efficient way to control the microstructure of epoxy/mercaptan polymer and develop the composites with switchable optical transmittances for both civil and military applications.

Polymer published new progress about Electric field. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Product Details of C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Hao, Xiaojing published the artcileA gel polymer electrolyte based on PVDF-HFP modified double polymer matrices via ultraviolet polymerization for lithium-sulfur batteries, Recommanded Product: Pentaerythritol tetra(3-mercaptopropionate), the main research area is PVDF HFP UV polymerization lithium sulfur battery; Gel polymer electrolyte; Lithium-sulfur battery; Quasi-solid-state; Ultraviolet polymerization.

Currently, as a new kind of separator, gel polymer electrolytes (GPEs) not only should play a role to sep. cathode and anode, but also should have high ionic conductivity to guarantee the elevated electrochem. performances. As for quasi-solid-state lithium-sulfur batteries (LSBs), it is also very important to confine the shuttle effect and Li dendrite growth. Herein, we synthesize GPEs polymerized under UV, in which the poly(vinylidene fluoride-hexafluoro propylene) (PVDF-HFP) is one of the polymer matrixes to provide high ionic conductivity and toughness, pentaerythritol tetrakis-divinyl adipate (PETT-DA) is another polymer matrix to simultaneously suppress shuttle effect and lithium dendrite. More importantly, Li6.4La3Zr1.4Ta0.6O12 (LLZTO) provides the Li+ transport sites to facilitate the Li+ transport speed. Meanwhile, it can hinder the crystallization of polymers, reducing crystallinity of GPEs. Prominently, the designed GPEs with 10 wt% LLZTO have elevated ionic conductivity of 8.74 × 10-4 S cm-1 and Li+ transference number of 0.69, accompanied with superb capacity retention of 88.6% after 300 cycles at 1C. Importantly, the excellent mech. properties and thermal stability give more potentials to the commercialization of LSBs.

Journal of Colloid and Interface Science published new progress about Battery anodes. 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

Wang, Xiuli published the artcile3D ultraviolet polymerized electrolyte based on PEO modified PVDF-HFP electrospun membrane for high-performance lithium-sulfur batteries, Name: Pentaerythritol tetra(3-mercaptopropionate), the main research area is lithium sulfur battery gel polymer electrolyte nanofiber UV polymerization.

At present, the quasi-solid-state lithium-sulfur batteries (LSBs) assembled with sulfur cathode, gel polymer electrolyte (GPE) and Li anode have explored a novel prospect for substantial energy applications owing to the high energy d. and elevated security. In this work, we propose a 3D UV polymerized electrolyte, in which the inner substrate is the PEO modified PVDF-HFP electrospun membrane, and the hydrogen bonding effect plays a critical role in regulating the nanofiber diameter and membrane porosity. Simultaneously, outside coating is the in-situ UV polymerized pentaerythritol tetrakis-divinyl adipate (PETT-DA) layer, in which the carbonyl groups can effectively suppress the polysulfides shuttling. Consequently, the optimal electrolyte membranes with high porosity possess the high electrolyte uptake of 279.8%, ionic conductivity of 9.64 × 10-4 S cm-1 and Li+ transference number of 0.71 at 25 °C. Prominently, the assembled quasi-solid-state LSBs exhibit the stable coulombic efficiency of 99.5-100.0% over 300 cycles and good capacity retention of 87.1% after 300 cycles at 2C. More importantly, excellent thermal dimensional properties and mech. performances further provide great com. potentials for our synthesized 3D electrolyte membranes.

Electrochimica Acta published new progress about Battery anodes. 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

Zhang, Jianwei published the artcileArtificial Single-Ion Conducting Polymer Solid Electrolyte Interphase Layer toward Highly Stable Lithium Anode, Category: alcohols-buliding-blocks, the main research area is artificial single ion conducting artificial electrolyte interphase lithium anode.

Lithium (Li) as one of the most promising anode materials for the next-generation batteries was unfortunately plagued by the inevitable Li dendrite growth and the dynamically destroy/reconstruction of the unstable native solid electrolyte interphase (SEI) layer, which can severely affect the specific capacity and lifespan of lithium batteries, limiting the practical application of the Li anode. In this work, a single ion conducting artificial polymer SEI layer is designed on the surface of the Li anode. The fabricated SEI layer shows high ionic conductivity and lithium transference number, which is beneficial for inducing homogeneous Li deposition, effectively suppressing the nucleation and growth of dendrite. Moreover, the uniform and stable SEI layer with a well-designed network structure can availably protect the Li anode from directly contacting with the electrolyte, reducing the related side reactions and effectually limit the addnl. consumption of the active Li and electrolyte. The sym. Li cells can cycle stably over 1200 h without short-circuit at the current/capacity densities of 1 (1 mAh/cm2) and 5 mA/cm2 (5 mAh/cm2). The assembled LiFePO4/LPEDV-Li cells exhibit high capacity retention ≤ 81.3% after 2400 cycles at the high rate of 8 C. Therefore, the designed artificial SEI layer with excellent properties presents a high application potential in stabilizing the Li anode.

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

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tseng, Yu-Chao published the artcileIn Situ Polymerized Electrolytes with Fully Cross-Linked Networks Boosting High Ionic Conductivity and Capacity Retention for Lithium Ion Batteries, Safety of Pentaerythritol tetra(3-mercaptopropionate), the main research area is polymerized electrolyte ionic conductivity lithium battery.

In this report, quasi-solid polymer electrolytes (QPEs) based on dicationic imidazolium-based poly(ionic liquid) (PIL) cross-linker end capped with polyethylene glycol (PEG) segments have been UV cured directly onto lithium anode via an in situ solventless strategy, creating a direct, effective, and versatile method for electrolyte production Depending on the composition, room temperature ionic conductivities are found to vary between 0.7 and 1.1 mS cm-1, while compressive elastic moduli reveal the values between 0.072 and 0.349 MPa observed at a 5% strain. These results, together with FT-IR anal., indicate that fully cross-linked networks can be formed in the QPE-1:1.6 sample, which is conducive to generating well-connected ion channels and affords the assembled lithium ion batteries (LIBs) with a wide electrochem. window and a remarkable discharge capacity retention (153 mAh g-1 at 0.2 C and 133 mAh g-1 at 1 C) at 25 °C. Also, the adopted in situ polymerization can contribute to an enhanced electrolyte/electrode interfacial compatibility and conformal attachment, suppressing the growth of lithium dendrites and extending the cycle life of the assembled battery. Both the outstanding electrochem. properties of QPE-1:1.6 and the facile fabrication process potentially make it one of the promising electrolyte candidates for future LIBs developments.

ACS Applied Energy Materials published new progress about Battery anodes. 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

Guo, Wenwen published the artcileMagnolol-derived thiol-ene photo-polymerized membranes with intrinsic anti-flammability and high transparency, Application of Pentaerythritol tetra(3-mercaptopropionate), the main research area is magnolol thiol ene photopolymerization membrane transparency flammability property.

In this study, a phosphorus-containing bio-based monomer (MBDPP) was first synthesized from renewable magnolol, and subsequently photo-cured with tri-thiol (TPTMP) or tetra-thiol (PETMP) monomers via thiol-ene polymerization The synthesized MBDPP/TPTMP and MBDPP/PETMP membranes exhibited high char residues at 700°C in the TGA tests, which were 19.8 wt% and 24.2 wt% for nitrogen while 16.5 wt% and 20.2 wt% for air, resp., indicating superior charring capacity of both membranes. DMA results indicated that both the higher stiffness and the Tg of the cured MBDPP/PETMP membrane was ascribed to its higher crosslinking d. than that of the cured MBDPP/TPTMP owing to the tetra-functional groups of PETMP. In the open flame test, both MBDPP/TPTMP and MBDPP/PETMP membranes self-extinguished immediately when removing the flame source, manifesting excellent intrinsic anti-flammability. The cone calorimeter results further demonstrated that MBDPP/TPTMP and MBDPP/PETMP membranes showed lower PHRR (419 and 388 kW/m2, resp.) and THR (41.38 and 38.98 MJ/m2, resp.) values than most of the thiol-ene photo-polymerized counterparts previously reported. The excellent anti-flammability of MBDPP/TPTMP and MBDPP/PETMP membranes originated from the formation of expandable char residues that played an efficient role in hampering the transfer of flammable pyrolysis products to flame zone as well as insulating the heat irradiation during combustion. Addnl., both MBDPP/TPTMP and MBDPP/PETMP membranes showed excellent transparency (transmittance >85% in the visible region) and flexibility (breaking elongation around 40%). Taking the intrinsic anti-flammability, exceptional transparency and high flexibility into account, the MBDPP/TPTMP and MBDPP/PETMP systems are suitable as intumescent flame retardant coating materials.

Composites, Part B: Engineering published new progress about Binding energy. 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

Ou, Zhi Rong published the artcileControllable Depolymerization and Recovery of Interlocked Covalent Adaptable Networks via Cascading Reactions of the Built-In Reversible Bonds, Product Details of C17H28O8S4, the main research area is controllable depolymerization interlocked covalent adaptable network.

A novel strategy for controllable depolymerization and recovery of polymer blends is proposed. The core advance lies in the application of reversible boronic ester bonds and imine bonds, which possess the abilities of correlative scission and rebuilding. Accordingly, reversibly interlocked polymer networks (RILNs) are prepared from two preformed crosslinked polymers, which resp. carry the two reversible bonds. By taking advantage of the intimate packing of the macromols. from the two networks in the RILNs, the cascading effect between boronic ester bonds and imine bonds is enabled. When the DMF swollen RILNs are triggered by a little water, the boronic ester bonds in one component network are decomposed, affording boronic acid, which subsequently catalyzes the cleavage of the adjacent imine bonds in the other component network. Meanwhile, scission of the imine bonds also promotes decomposition of the boronic ester bonds as well. The cascading processes can be reversed via dehydration-induced reformation of boronic ester bonds. Hence, RILNs are allowed to be depolymerized in a controlled manner and then recovered by removing the solvent and water.

Macromolecules (Washington, DC, United States) published new progress about Binding energy. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Product Details of C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yu, Chao published the artcileA “”graphdiyne-like”” anti-fouling TBBPA molecularly imprinted membrane synthesized based on the delayed phase inversion method: A concomitant permeability and selectivity, HPLC of Formula: 7575-23-7, the main research area is antifouling molecularly imprinted membrane delayed phase inversion nanomaterial.

Integration of membrane and nanomaterial is a forward-looking research orientation, which can effectively overcome the permeability-selectivity trade-off relationship and improve anti-fouling performance. However, the current combination methods usually suffer from defects due to the aggregation and embedding of nanomaterials, resulting in serious performance deterioration of membrane during continuous operation process. Herein, “”graphdiyne-like”” Tetrabromobisphenol A molecularly imprinted membranes with uniform and dense SiO2 layer, namely TB-MIMs, are successfully prepared by delayed phase inversion method (DPIM). We found that the membrane prepared by DPIM exhibits both promoted pure water flux (405 L m-2 h-1) and enhanced adsorption capacity (83.476 mg g-1) by comparing with the membranes prepared by blending and grafting methods. The role of molecularly imprinting technique contributes to improving the selectivity of TB-MIMs toward TBBPA, leading to a high selectivity factor of 3.39, 3.27 and 3.05 for bisphenol A, p-tert-Bu phenol and 4, 4′-dihydroxybiphenyl, resp. Moreover, the flux of TB-MIMs is nearly recovered to an original level after washing the bovine serum albumin fouled membrane surface with deionized water. Notably, the TB-MIMs presents a high rejection rate for bovine serum albumin (94%), humic acid (92%) and alginic acid (91%) in natural water, indicating its bright actual application value. These superior performances highlight the advantage of DPIM strategy over traditional methods in terms of combination between membrane and nanomaterials.

Journal of Membrane Science published new progress about Binding energy. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, HPLC of Formula: 7575-23-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts