Esters-buliding-blocks

Kurihara, Seiji published the artcilePhotoswitching properties of photonic band gap material containing azo-polymer liquid crystal, Product Details of C23H28N2O4, the publication is European Polymer Journal (2007), 43(12), 4951-4960, database is CAplus.

A photochem. tunable photonic crystal was prepared by infiltration of the polymer liquid crystal (LC) having azo-chromophores in a SiO₂ inverse opal structure. The SiO₂ inverse opal film infiltrated with the polymer LC reflected a light corresponding to the periodicity as well as the refractive indexes of the inverse opal structure. Linearly polarized light irradiation caused the shift of the reflection band to longer wavelength >15 nm. This is caused by the formation of uniaxially anisotropic mol. orientation of the polymer LC. The switched state was stable under interior light, and reversible switching of the reflection band can be achieved by the linearly and circularly polarized light irradiation This photoswitching property will be suitable not only for various optical materials, but also for introduction of defects in the photonic crystals.

European Polymer Journal published new progress about 135529-02-1. 135529-02-1 belongs to esters-buliding-blocks, auxiliary class azo,Alkenyl,Benzene,Ester,Ether, name is 6-(4-((4-Methoxyphenyl)diazenyl)phenoxy)hexyl methacrylate, and the molecular formula is C23H28N2O4, Product Details of C23H28N2O4.

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

Dembele, Ousmane published the artcileNovel approach towards 3,7-disubstituted 1,6-naphthyridin-4(1H)-ones exploiting cross-coupling and S_NAr reactions of a dihalogenated compound, Application In Synthesis of 924-99-2, the publication is Tetrahedron Letters (2018), 59(39), 3519-3523, database is CAplus.

A new route toward the synthesis of a series of 3,7-disubstituted 1,6-naphthyridin-4(1H)-ones such as I [R¹ = C₆H₄, 3-FC₆H₄, NH(4-MeOC₆H₄), etc.; R² = 4-ClC₆H₄, NHC₆H₅, 4-pyridinyl, etc.] in moderate to good yields was reported. The strategy involved the preparation of 3,7-dihalogenated compound that underwent differential functionalization via palladium-catalyzed Suzuki-Miyaura cross-coupling/Buchwald-Hartwig amination and S_NAr reactions.

Tetrahedron Letters published new progress about 924-99-2. 924-99-2 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Amine,Aliphatic hydrocarbon chain,Ester, name is Ethyl 3-(dimethylamino)acrylate, and the molecular formula is C7H13NO2, Application In Synthesis of 924-99-2.

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

Dasgupta, Sudip published the artcileHydroxyapatite-collagen nanoparticles reinforced polyanhydride based injectable paste for bone substitution: effect of dopant addition in vitro, Computed Properties of 10287-53-3, the publication is Journal of Biomaterials Science, Polymer Edition (2021), 32(10), 1312-1336, database is CAplus and MEDLINE.

The present study focuses on the synthesis and characterization of hydroxyapatite-collagen nanoparticles incorporated polyanhydride paste and investigating its bone regeneration capacity in vitro. Si, Sr, and both Si/Sr doped hydroxyapatite-collagen nanoparticles to the extent 10 wt% were added to polyanhydride monomer mixture containing 40 wt% MSA, 40 wt% MCPH and 10 wt% PEGDA and subsequently photopolymerized as previously mentioned. Incorporation of hydroxyapatite-collagen nanoparticles to the extent of 10 wt% into polyanhydride matrix enhanced compressive strength of the hardened paste from 30 to 49 MPa. MTT assay showed that mesenchymal stem cell proliferation was significantly higher in Si/Sr binary doped hydroxyapatite-collagen-polyanhydride sample as compared to other samples. Again from immunocytochem. study using confocal images suggested that expression of osteocalcin, a marker indicating differentiation into osteoblast, was the highest in Si/Sr binary doped hydroxyapatite-collagen-polyanhydride sample against the other samples studied in this case. This study thus summarizes the development of photocurable biocomposites containing polyanhydride and Si, Sr doped hydroxyapatite-collagen nanoparticles that exhibited tremendous promise to regenerate bone tissues in complex-shaped musculoskeletal defect sites.

Journal of Biomaterials Science, Polymer Edition published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Computed Properties of 10287-53-3.

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

Schumacher, Christian published the artcileMechanochemical Syntheses of N-Containing Heterocycles with TosMIC, HPLC of Formula: 103-26-4, the publication is Journal of Organic Chemistry (2021), 86(20), 14213-14222, database is CAplus and MEDLINE.

A mechanochem. van Leusen pyrrole synthesis with a base leads to 3,4-disubstitued pyrroles in moderate to excellent yields. The developed protocol is compatible with a range of electron-withdrawing groups and can also be applied to the synthesis of oxazoles. Attempts to mechanochem. convert the resulting pyrroles into porphyrins proved to be difficult.

Journal of Organic Chemistry published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H2F12NiO4, HPLC of Formula: 103-26-4.

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

Rahal, Mahmoud published the artcileNaphthalimide-Based Dyes as Photoinitiators under Visible Light Irradiation and their Applications: Photocomposite Synthesis, 3D printing and Polymerization in Water, Name: Ethyl 4-dimethylaminobenzoate, the publication is ChemPhotoChem (2021), 5(5), 476-490, database is CAplus.

In this work, six new fluorescent dyes derived from the naphthalimide scaffold (Napht1-Napht6) were synthesized and used as high-performance photoinitiating systems (PISs) in two and three-component systems (combined with iodonium salt (Iod) and/or an electron donor amine (such as N-phenylglycine[NPG])) for the radical photopolymerization of acrylate and methacrylate monomers under visible light using a light-emitting diode at 405 nm. Markedly, these dyes were never synthesized before. In fact, these PISs showed high initiation efficiency with both demonstrating high final reactive function conversions and high polymerization rates. A further interest of our study is to determine the effect of the different substituents (chromophoric group) on the naphthalimide function, concerning the efficiency of initiation of the free radical polymerization In order to improve the mech. properties of the obtained polymers, these derivatives were also tested for the photopolymerization of a blend of acrylate/epoxy monomers (TA/EPOX); these latter properties were characterized by traction tests. To demonstrate the initiation efficiency of these dyes, several methods and characterization techniques were used, including steady state photolysis, real-time Fourier transform IR spectroscopy, emission spectroscopy as well as cyclic voltammetry. In our study, these naphthalimides were used for the synthesis of photocomposites (one and multiple layers of glass fibers) using a UV@395 nm (4 W/cm2) conveyor, as well as in the preparation of 3D printed polymers. Markedly, one of the naphthalimide derivatives (Napht-4) can be used as a new high-performance water soluble photoinitiator for photopolymerization in water and hydrogel synthesis.

ChemPhotoChem published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Name: Ethyl 4-dimethylaminobenzoate.

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

Amoozadeh, Pegah published the artcileUV-curable hybrid hydrogels of carbon quantum dots: synthesis, characterizations and investigation of properties and rheological behavior, Related Products of esters-buliding-blocks, the publication is Polymer-Plastics Technology and Materials, database is CAplus.

In this study, we are going to produce UV-curable hydrogel hybrids with carbon quantum dots. For this purpose, after synthesizing CQDs, they were reacted with acrylic acid to establish covalent bonds and create a C = C bond on the surface of CQDs. Then acrylamide hydrogel was synthesized. In the next step, 1, 3 and 5% UV-curable hydrogel hybrids were prepared The exptl. results displayed that increasing the amount of CQDs in the hydrogel increased photoluminescence intensity and water adsorption while boosting the hydrogel′s thermal stability. Besides, increasing the CQDs amount reduces the hydrogel elasticity.

Polymer-Plastics Technology and 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, Related Products of esters-buliding-blocks.

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

Mohd Yunus, Nor Yuziah published the artcileTensile performances of radiation triggered wood-plastic composite and trimethylolpropane triacrylate (TMPTA) as additive at different treatments, Application In Synthesis of 15625-89-5, the publication is Materials Today: Proceedings (2022), 51(Part_2), 1293-1297, database is CAplus.

The blending of wood fibers with polypropylene has been widely reported. The behavior for radiation triggered wood-plastic composite (WPC) may differ for different treatment protocol. This study looks at the effect of combination style of rubberwood fiber, polypropylenes and additive (trimethylolpropane triacrylate, TMPTA) radiation treatment. The effect is measured through the tensile and flexural properties of the resultant WPC. The combination of sep. radiation of fiber, polypropylene combine with TMPTA, showed the best performance for tensile at 48.2 MPa at initial stage and second best reading after 24 mo. Interestingly the combination with only polypropylene irradiated gave lowest initial tensile but developed the highest strength value after 24 mo storage. The dynamic mech. test for the WPC showed the presence of trapped radicals in the completed WPC. The change in strength showed a different ageing effect in radiated sample which need to be studied further prior to usage.

Materials Today: Proceedings 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, Application In Synthesis of 15625-89-5.

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

El-Zayat, Mai M. published the artcileEnhancing the physico-mechanical properties of ethylene propylene diene monomer rubber via ?-radiation in the presence of bi-functional and tri-functional monomers, SDS of cas: 15625-89-5, the publication is Radiochimica Acta (2022), 110(2), 145-156, database is CAplus.

This study, uses two polyfunctional monomers (PFMs) namely ethylene glycol dimethacrylate (EGDMA) as a bifunctional monomer and trimethylolpropane triacrylate (TMPTA) as a trifunctional monomer were used as co-agents in irradiation crosslinking of Ethylene Propylene Diene Monomer Rubber (EPDM). The effect of concentration of each PFM and irradiation dose on the crosslinking d., gel content, swelling behavior in motor and brake oils, in addition to the mech. and thermal stability properties of EPDM was investigated in detailed. The results showed a remarkable increase in the gel content, crosslinking d. and mech. properties as the concentration of PFMs increased from 1 to 5 phr (parts per hundred parts of rubber). The various blends of EPDM with the trifunctional monomer express the highest gel content and crosslinking d. than those with the bifunctional monomer. The addition of 5 phr of TMPTA to EPDM causes a dramatic improvement in tensile strength (TS) of the prepared blend reached to 188% compared to neat EPDM at 50 kGy. At the same time, the maximum TS of the blend containing 5 phr of EGDMA achieved only 41% compared to neat EPDM at an irradiation dose of 100 kGy. The swelling of irradiated samples in brake oil revealed a stronger oil resistance than motor oil. For all irradiated samples, the oil uptake decreased with the irradiation dose up to 100 kGy. The EPDM samples containing 5 phr of TMPTA recorded the highest oil resistance at 100 kGy. The results also showed that the addition of PFMs and irradiation treatment of the various prepared blends improved the thermal stability of EPDM. Finally, neat EPDM and the blends containing 1 and 3 phr of EGDMA can be used as radiation dosimeters in the very high dose range (50-200 kGy).

Radiochimica Acta 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

Lazewska, Dorota published the artcileAlkyl derivatives of 1,3,5-triazine as histamine H₄ receptor ligands, Category: esters-buliding-blocks, the publication is Bioorganic & Medicinal Chemistry (2019), 27(7), 1254-1262, database is CAplus and MEDLINE.

This study focuses on the design, synthesis, mol. modeling and biol. evaluation of a novel group of alkyl-1,3,5-triazinyl-methylpiperazines. New compounds were synthesized and their affinities for human histamine H₄ receptor (hH₄R) were evaluated. Among them, 4-(cyclohexylmethyl)-6-(4-methylpiperazin-1-yl)-1,3,5-triazin-2-amine (14) exhibited hH₄R affinity with a K_i of 160 nM and behaved as antagonist in functional assays: the cellular aequorin-based assay (IC₅₀ = 32 nM) and [³⁵S]GTPγS binding assay (pK_b = 6.67). In addition, antinociceptive activity of 14 in vivo was observed in Formalin test (in mice) and in Carrageenan-induced acute inflammation test (in rats).

Bioorganic & Medicinal Chemistry published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Category: esters-buliding-blocks.

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

Mizukado, Junji published the artcileChemical analysis of polymer degradation, SDS of cas: 31570-04-4, the publication is Seikei Kako (2021), 33(8), 262-265, database is CAplus.

Deterioration due to heat of PP, which is discussed in this paper, especially when it is deteriorated by accelerated deterioration test, is affected by the structure of PP itself, but it is greatly affected by additives such as antioxidants and Many, the internal cause is mainly the type and concentration of the antioxidant, and the external cause is heat. However, when analyzing the deterioration of market-recovered products, it is necessary to consider various possibilities including the internal cause because the external cause is not clear. In addition, since the case where durability depends on antioxidants often applies to other polymers, the author like to consider this PP as one subject.

Seikei Kako published new progress about 31570-04-4. 31570-04-4 belongs to esters-buliding-blocks, auxiliary class Mono-phosphine Ligands, name is Tris(2,4-di-tert-butylphenyl) phosphite, and the molecular formula is C42H63O3P, SDS of cas: 31570-04-4.

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