Category: 15625-89-5

Kim, Young Been published the artcileCamouflage coating using photochromic microcapsules and epoxy resin, Formula: C15H20O6, the publication is Polymer (Korea) (2022), 46(2), 288-294, database is CAplus.

Using photochromism of a diarylethene, we demontrate an easy but highly effective coating method for a camouflage application. The photochromic ink is consisting of capsule type of photochromic pigments and UV curable epoxy resin, reversibly presenting colored pattern in response to UV light. The transmittance of the coatings was investigated based on concentrations of the photochromic microcapsules, we have found that 5 weight% of the microcapsules in epoxy resin is most appropriate for camouflage with background. Besides, in order to increase mech. stability of the coating, thin protective layer including acrylate chems. is further coated on the patterns. By taking advantage of bar-coating with various mask pattern, different patterns were successfully coated on various types of surfaces such as wood, glass, general concrete wall and even curved surfaces. Based on the coating method, camouflage application for an encryption quick response (QR) pattern was successfully demonstrated.

Polymer (Korea) 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, Formula: C15H20O6.

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

Kim, Jeehwan published the artcileEffect of dispersants on structural integrity of 3D printed ceramics, Quality Control of 15625-89-5, the publication is International Journal of Applied Ceramic Technology (2022), 19(2), 968-978, database is CAplus.

Ceramic 3D printing based on stereolithog. is an excellent alternative to overcome drawbacks of conventional subtractive manufacturing for 3D shape control. Optimization of photocurable ceramic slurry is one of the most essential conditions to achieve favorable 3D printed structures using SL. Homogeneity of ceramic particle dispersion in photocurable resin is particularly important to optimize ceramic suspension. Dispersant plays a significant role in increasing homogeneity. Dispersant in photocurable ceramic resin has an addnl. effect on photocurability and integrity of 3D printed green body. We herein discuss how dispersants influence 3D printing conditions based on stereolithog. using various com. available dispersants of BYK series such as BYK103, BYK111, BYK180, BYK182, and BYK2001. Both BYK111 and BYK180 showed better performances than others because of their lower volatilities under general temperature condition during a printing process. Both solubility and decomposition temperature of dispersants largely influenced the structural quality after washing and debinding processes. This study provides worthy information to design photocurable ceramic suspension for various types of ceramic materials.

International Journal of Applied Ceramic Technology 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, Quality Control of 15625-89-5.

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

Hsu, Shih-Hsin published the artcileHigh-Speed One-Photon 3D Nanolithography Using Controlled Initiator Depletion and Inhibitor Transport, Product Details of C15H20O6, the publication is Advanced Optical Materials (2022), 10(4), 2102262, database is CAplus.

Additive manufacturing of sophisticated 3D nanoscale objects commonly uses femtosecond lasers to photopolymerize a light-sensitive resin using multi-photon absorption. This nonlinear process provides high accuracy and flexibility in advanced 3D fabrication; however, it typically has limited throughput and high cost. This work makes use of a one-photon-based dosage-nonlinearity to fabricate 3D nanostructures, demonstrating a cost-effective method for 3D nanolithog. using a low-cost 405 nm continuous-wave diode laser. This dosage-nonlinearity is achieved by using controlled depletion of photo-initiation species in an environment containing inhibiting species. By controlling multiple competing processes, the undesired dose accumulation outside the writing voxel is stopped, and thereby this method creates a confined writing voxel in space. A multiphysics model is developed to numerically study the one-photon nonlinear photopolymerization process, which is compared with exptl. results.

Advanced Optical Materials 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

Yang, Tonghui published the artcileEnhanced crosslinking of polypropylene in γ-irradiation via copper(II) doping, Quality Control of 15625-89-5, the publication is Radiation Physics and Chemistry (2022), 110042, database is CAplus.

Crosslinked polypropylene (PP) has a greater application prospect due to its excellent properties, hence, how to improve the crosslinking of PP is significant. In our research, the effects of γ-irradiation on the crosslinking of PP blended with copper(II) acetate monohydrate were investigated. Firstly, PP was melt-blended with a crosslinking agent (1,2-Polybutadiene (PB) or Trimethylolpropane triacrylate (TMPTA)) and copper(II) acetate monohydrate in a twin-screw extruder, then treated with various γ-irradiation dose. The influence of copper(II) content and radiation dose on crosslinking of PP was characterized by gel content, melt flow index measurement (MFI), rheol. anal. measurement, differential scanning calorimetry, and thermogravimetric anal. The results of gel content, MFI, and Rheol. anal. indicated that the copper(II) could enhance the crosslinking of both PP/PB and PP/TMPTA at all ranges of radiation dose, more particularly, the enhanced effect was much prominent at low radiation dose, and of which is more obvious in the latter system. The crosslinking effect based on the mechanism of copper(II) catalysis enhanced was also discussed, which is assumed as the promotion of free radical production during irradiation processing. In addition, the copper(II) would also enhance the thermal stability of the γ-irradiation treated PP/PB and PP/TMPTA blends, and decrease the crystallinity and the m.p. This paper provided a novel method to increase the irradiated crosslinking of PP at a lower irradiation dose, which was expected to expand its application field.

Radiation Physics and Chemistry 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 C39H35N5O8, Quality Control of 15625-89-5.

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

Pawale, Tejal published the artcileSynergistic self-assembly of rod-like monomers in blue phase liquid crystals for tunable optical properties, SDS of cas: 15625-89-5, the publication is Journal of Materials Chemistry C: Materials for Optical and Electronic Devices, database is CAplus.

The three-dimensional nanostructures of blue phase liquid crystals (BPLCs) are becoming the spotlight of soft matter research in electro-optic devices, sensors, photonic crystals, and 3D lasers. The polymerization of the blue phase system overcomes the inherent thermal instability and paves the way for broadening the application of blue phases. Prior to polymerization, a fundamental understanding of the synergistic self-assembly behavior of monomers in the BP lattice can provide insights not only into the soft crystal growth and crystal transformations but also into the tunability of their optical properties. Here, we controlled the reactive monomer content in the BPs to observe the stability of BPI and BPII with different lattice dimensions before polymerization The self-assembly behavior of com. available rod-like mesogenic monomers in BP lattices with different monomer compositions was investigated under a homogeneous hybrid cell and directed self-assembly approach. The revealed synergistic self-assembly mechanism of the mesogenic monomer in BPs provides the ability to tune the photonic band gap of BP soft crystals.

Journal of Materials Chemistry C: Materials for Optical and Electronic Devices 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, SDS of cas: 15625-89-5.

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

Liu, Jie published the artcileSingle-, Dual-, Triple, and Quadruple-Wavelength Surface-Emitting Lasing in Blue-Phase Liquid Crystal, Product Details of C15H20O6, the publication is Advanced Materials (Weinheim, Germany) (2022), 34(9), 2108330, database is CAplus and MEDLINE.

Soft organic lasers with multiwavelength output and high spectral purity are of crucial importance for versatile photonic devices, owing to their monochromaticity, coherence, and high intensity. However, there remain challenges for the achievement of surface-emitting multiwavelength lasing in soft photonic crystals, and the relative mechanisms need to be investigated. Herein, single-, dual-, triple-, and quadruple-wavelength lasers are successfully achieved in dye-doped blue-phase liquid crystal (BPLC) film. The number and wavelength of the lasing peaks can be manipulated by tuning the center of the bandgap, the order parameter of the laser dye, the quality of the resonance cavity, and even the pump energy. For single-wavelength lasing, a lasing peak with an ultranarrow linewidth of 0.04 nm (Q-factor of 13 454) is achieved. Multiwavelength lasing is attained based on the following aspects: i the narrow bandgaps of the BPLCs with full width at half maximum of 14-20 nm; ii a laser dye with high gain over a wide wavelength band, having a low-order parameter in the liquid crystal matrix; iii appropriate relative positions between the reflection and fluorescence peaks; and iv the highly ordered crystal lattice of BPLC film. The proposed single-to-quadruple-wavelength surface-emitting lasers can be employed as coherent light sources for next-generation optical devices.

Advanced Materials (Weinheim, Germany) 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, Jinwei published the artcilePhotocured polyacrylate coatings modified by polybutadiene derivatives with multiunsaturated reactive bonds, Application of Trimethylolpropane triacrylate, the publication is Journal of Coatings Technology and Research, database is CAplus.

Maleic anhydride-g-poly(1,2-butadiene) (MLPB) is used as a rubber flexibilizer to modify UV-curable polyacrylate coatings (PA) in an attempt to improve their wear resistance and water tolerance. Fourier transform IR spectra results show that the unsaturated reactive bonds of MLPB fully participate in the UV-curing reaction and successfully copolymerized with acrylates to obtain robust coatings. The smooth and broad differential scanning calorimeter curves show that the cured systems had good compatibility and their glass transition temperatures (Tg) increase from about 63°C to 74°C with the increase of MLPB addition up to 6 wt%. With the addition of MLPB in PA matrix, their cross-sectional scanning electron microscope (SEM) pictures show brittle features with coarser and dimpled microcracks transforming to toughened fracture morphol. with particles offsetting microcrack propagation when MLPB content is added up to 4-6 wt%. The wear scar profiles show that the cross-sectional areas decrease significantly with the MLPB addition, implying the improvement in the wear-resisting ability of PA composite toughened by MLPB; the hardness, impact resistance, and adhesion could be also improved when MLPB was controlled less than 6 wt%. Compared with the pure polyacrylate coatings, the modified coatings exhibited an improvement in water resistance before and after 48-h UV aging.

Journal of Coatings Technology and Research 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 C9H21NO3, Application of Trimethylolpropane triacrylate.

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

Tang, Jie published the artcilePreparation of photosensitive SiO₂SiC ceramic slurry with high solid content for stereolithography, Related Products of esters-buliding-blocks, the publication is Ceramics International, database is CAplus.

Stereolithog. is a popular three-dimensional (3D) printing technol., which is widely used for manufacturing ceramic components owing to its high efficiency and precision. However, it is a big challenge to prepare SiC ceramic slurry with high solid content for stereolithog. due to the strong light absorption and high refractive index of dark SiC powders φ. Here, we propose a novel strategy to develop photosensitive SiO₂/SiC ceramic slurry with high solid content of 50-65 vol% by adding spherical silica with low light absorbance and applying a stacking flow model to improve the solid content of the slurry. The as-prepared slurry exhibits excellent stereolithog. properties with a dynamic viscosity lower than 20 Pa s and curing thickness more than 120 μm. Therefore, it can be successfully applied for stereolithog.-based additive manufacturing of SiC green ν bodies with large size (100 mm), sub-millimeter accuracy (0.2 mm), and complex structure. The stacking flow model also shows immense potential for the stereolithog. of other dark-color ceramics with high solid content.

Ceramics International 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 C14H12N2S, Related Products of esters-buliding-blocks.

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

Godoy, William M. published the artcileKinetic modeling of glycerol acetylation catalyzed by styrene-divinylbenzene and styrene-trimethylolpropane triacrylate sulfonated resins, Recommanded Product: Trimethylolpropane triacrylate, the publication is Reaction Kinetics, Mechanisms and Catalysis (2022), 135(1), 233-245, database is CAplus.

The present work reports a kinetic comparison between two resins made with different cross-linkers, Amberlyst 36 and PS-TMPTA. The latter was synthesized in this study. Both resins were used as catalysts in glycerol acetylation in a batch reactor at 80 and 90°C, with 5 and 10 g L^-1 of catalyst concentration under a molar ratio 4:1 of acetic acid/glycerol. The synthesized resin (PS-TMPTA) presented low ion exchange capacity (1.5 mmol g^-1) compared to the com. resin (Amberlyst 36, 5.45 mmol g^-1), but both presented similar efficiency in catalysis, probably due to the difference in crosslinking densities. The exptl. results explain the resins behavior and properties in detail (ion exchange capacities, swelling index and catalytic efficiency) and the kinetic models were compared utilizing the difference between the corrected Akaike Information Criterion (ΔAICc), Standard Deviation (s) and P-value (student t distribution). According to the results, the irreversible first order model had the best fit of the two models for the exptl. conditions studied for this work.

Reaction Kinetics, Mechanisms and Catalysis 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

Breloy, Louise published the artcileMethacrylated Quinizarin Derivatives for Visible-Light Mediated Photopolymerization: Promising Applications in 3D-Printing Biosourced Materials under LED@405 nm, Computed Properties of 15625-89-5, the publication is ACS Applied Polymer Materials (2022), 4(1), 210-228, database is CAplus.

The high initiating properties of mono- (Q-1Ac) and dimethacrylated (Q-2Ac) quinizarin derivatives under visible-light irradiation are reported here. Associated with various co-initiators, such as iodonium salt (electron acceptor), an amine derivative (electron donor) or thiol crosslinker (H-donor), the quinizarin derived photosensitizers lead to high conversions by radical photopolymerization in laminate or under air. Mechanisms of photoinitiation were deeply investigated by fluorescence, laser flash photolysis (LFP) and ESR experiments The use of soybean oil acrylate (SOA) as biobased monomer leads to highly crosslinked materials under visible-light, with comparable mech. properties than UV-induced ones previously described in literature. Copolymerization of the photosensitizer (PS) with the polymer matrix not only prevents leakage, but also ensures antiadhesion properties of SOA materials against Staphylococcus aureus (S. aureus) under visible-light activation. Finally, complex 3D biobased structures are successfully obtained by 3D-printing under visible-light irradiation (LED@405 nm), opening opportunities to design photoinduced biosourced materials.

ACS Applied Polymer Materials 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, Computed Properties of 15625-89-5.

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