Month: November 2022

On November 19, 2003, Qiu, Yong; Wang, Liduo; Li, Yinkui published a patent.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the patent was Preparation of polyphenylenevinylene through etherification, halomethylation and polymerization. And the patent contained the following:

A polyphenylenevinylene is prepared by the following steps: etherifying hydroquinone or 4-methoxyphenol in water or alc.; halomethylating with paraformaldehyde in dioxane or acetic acid solvent; polymerizing in THF (or xylene, DMSO) in the presence of potassium tert-butoxide at 0-80° under ultrasonic wave vibrating for 0.5-10 h. Polyphenylenevinylene derivatives can be obtained under lower temperature, shorter time and with higher reaction yield, and can be dissolved in normal solvents without gels. Thus, poly[[methoxy(octyloxy)-1,4-phenylene]-1,2-ethenediyl] is prepared by the homopolymerization of 1,4-di(chloromethyl)-2-methoxy-5-octyloxybenzene in THF under reflux, at a yield of 81.2%, wherein the monomer is prepared by the dichloromethylation of 1-methoxy-4-octyloxybenzene by paraformaldehyde and concentrated HCl under sonication, with 4-methoxyphenol as the starting material. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to etherifying methoxyphenol halomethylating paraformaldehyde polymerizing polyphenylenevinylene, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On September 6, 2003, Zhang, Su-Yang; Kong, Fan; Sun, Rong; Yuan, Ren-Kuan; Jiang, Xi-Qun; Yang, Chang-Zheng published an article.COA of Formula: C15H24O2 The title of the article was Synthesis, characterization, and electro-optical properties of a soluble conjugated polymer containing an oxadiazole unit in the main chain. And the article contained the following:

A novel copolymer, poly{[2,5-di-phenylene-1,3,4-oxadiazole-vinylene]-[2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene]}(MEH-OPPV) containing a high-electron-affinity unit of aromatic oxadiazole in the main chain is synthesized through the Wittig condensation reaction. The obtained copolymer is easily soluble in conventional organic solvents. The structure of the copolymer was characterized by Fourier transform IR, 1H NMR, thermogravimetric anal. (TGA), differential scanning calorimetry (DSC), and UV-visible and photoluminescence spectroscopy. The TGA result indicates that the copolymer has very high thermal stability (stable up to 310°C in nitrogen), while DSC investigation demonstrates that the glass transition temperature (Ts) is 143°C, which might be a merit for the long-life operation of light-emitting devices. The absorption spectrum of film sample of the copolymer reveals two peaks at 310 and 370 nm, resp., and the edge absorption corresponds to a band gap of 2.46 eV. A single-layer light-emitting diode device ITO/MEH-OPPV/Al is successfully fabricated. The device emits visible yellowish-green light above the bias voltage of 4.0 V under ambient condition. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).COA of Formula: C15H24O2

The Article related to oxadiazole conjugated polymer led preparation electroluminescence thermal degradation thermal, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.COA of Formula: C15H24O2

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On November 7, 2001, Ahn, Taek; Shim, Hong-Ku published an article.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Synthesis and luminescent properties of blue light emitting polymers containing both hole and electron transporting units. And the article contained the following:

Poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene-1,4-phenylene], POFB-MEH-PPV, poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-9,9-dihexyl-2,7-fluorene diyl-vinylene-1,4-phenylene], POFB-PF, and poly[(oxy-4,4′-octa-fluoro biphenyl-oxy)-1,4-phenylenevinylene-N-ethylhexyl-3,6-carbazole vinylene-1,4-phenylene], POFB-PK, were synthesized by the well-known Wittig condensation polymerization We incorporated the high electron affinity (octa-fluoro biphenyl) and hole-transporting (carbazole, fluorene, and dialkoxy phenyl) units into the conjugated main chain. The conjugation lengths are limited to the blue-emission region by ether linkage. The resulting polymers were completely soluble in common organic solvents such as chloroform, 1,2-dichloroethane, and cyclohexanone, and exhibited good thermal stability up to 300°C. The synthesized polymers showed UV-visible absorbance and photoluminescence (PL) in the ranges of 350-385 nm and 460-490 nm, resp. The fluorene or carbazole containing POFB-PF and POFB-PK showed blue photoluminescence peaks at 470 and 460 nm, resp. The single-layer light-emitting diode was fabricated in a configuration of ITO (indium-tin oxide)/polymer/Al. Electroluminescence (EL) emission of POFB-PF and POFB-PK were shown at 475 and 458 nm, resp., corresponding to the pure blue emissions. And, a dialkoxy-Ph containing POFB-MEH-PPV showed greenish blue light at 494 nm. But, LED devices from synthesized polymers showed poor device performance and high turn on voltage. So, we fabricated light-emitting diodes (LEDs) from blend polymers composed of poly[2-methoxy-5-(2-ethylhexyl-oxy)-1,4-phenylenevinylene] (MEH-PPV) and POFB-MEH-PPV (POFB-PF or POFB-PK) as the emitting layers. The EL emission maxima of each blend polymers were in the range of 573-591 nm, which indicates that the emission is mainly due to MEH-PPV and POFB-MEH-PPV (POFB-PF or POFB-PK) contributes to the enhancement of the luminescence. And each blend polymers exhibited higher EL quantum efficiency compared with MEH-PPV at the same c.d. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to fluorene carbazole containing polyphenylene preparation polymerization electro luminescence led, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Quality Control of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On March 9, 2006, Amrutha, S. R.; Jayakannan, M. published an article.Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was Control of π-Stacking for Highly Emissive Poly(p-phenylenevinylene)s: Synthesis and Photoluminescence of New Tricyclodecane Substituted Bulky Poly(p-phenylenevinylene)s and Its Copolymers. And the article contained the following:

In the present work, we have demonstrated a facile approach to increase the luminescence of the poly (p-phenylenevinylene)s via controlling the mol. aggregates induced by π-stacking. We have synthesized new bulky tricyclodecane (TCD) substituted PPVs: poly(2-methoxy-5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (MTCD-PPV), poly(bis-2,5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (BTCD-PPV), and a series of sym. substituted bulky PPV copolymers (P-1-P-7) covering the entire composition range from 0 to 100 mol %. The structures of the monomers and polymers were confirmed by 1H NMR and FTIR, and the mol. weights were determined by gel permeation chromatog. The composition anal. by NMR revealed that the bulky monomer was highly reactive and the incorporation of bulky units in MEH-PPV increased irresp. of the feed ratio. The polymers possess good solubility, high mol. weights, good thermal stability, and so forth. The mol. weights of the PPV copolymers were also significantly affected by the bulky substitution: the higher the incorporation of bulky units, the lower the mol. weight The absorption and emission studies revealed that there was no influence on the MEH-PPV by TCD substitution in solution whereas in the solid state the photoluminescence intensity of PPV increased more than 10 times. The luminescence increase in PPV was observed throughout the entire bulk and was not confined to any particular domain in the polymer. The bulky PPV copolymers showed that both the luminescence intensity (in film) and quantum yields (in solution) increased with an increase in the extent of BTCD incorporation in the MEH-PPV and attained a maximum for 50% BTCD. The TCD unit has thus proved to be an efficient bulky susbstituent for PPV as it controls the π-stack-induced mol. aggregates in the polymer chains by increasing the interchain distances. The new bulky PPV copolymers are highly soluble, thermally stable, and highly luminescent besides being economically cheap compared to the other materials reported so far for the bulkier approach in π-conjugated materials. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to tricyclodecane substituent polyphenylenevinylene synthesis luminescence aggregation pi stacking, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Reference of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On April 1, 2008, Karastatiris, Panayiotis; Mikroyannidis, John A.; Spiliopoulos, Ioakim K. published an article.SDS of cas: 146370-51-6 The title of the article was Bipolar poly(p-phenylene vinylene)s bearing electron-donating triphenylamine or carbazole and electron-accepting quinoxaline moieties. And the article contained the following:

Two new poly(phenylenevinylene)s (PPVs) carrying electron-donating triphenylamine or carbazole and electron-deficient quinoxaline units were synthesized and characterized. Their properties were compared with those of PPV containing only quinoxaline unit. The two polymers showed PL maximum at 501-510 in solution and 533-540 in thin film. Because of the presence of electron donor and acceptor units they displayed strong intramol. charge transfer (ICT) effects; hence, low-photoluminescence (PL) quantum yields. The polymers showed reversible electrochem. reduction with electron affinity of 2.75 eV and irreversible oxidation with ionization potential of 5.10-5.24 eV. Single-layer LED of configuration ITO/PEDOT/polymer/Al showed low turn-on voltage at 5 V, but limited brightness of 50-60 cdm-2. The electroluminescence maximum was voltage-tunable varying from 500 to 542 nm. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).SDS of cas: 146370-51-6

The Article related to triphenylamine carbazole quinoxaline polyphenylenevinylene photoluminescence electroluminescence, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.SDS of cas: 146370-51-6

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On May 15, 2009, Roviello, Antonio; Borbone, Fabio; Carella, Antonio; Diana, Rosita; Roviello, Giuseppina; Panunzi, Barbara; Ambrosio, Antonio; Maddalena, Pasqualino published an article.Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene The title of the article was High quantum yield photoluminescence of new polyamides containing oligo-PPV amino derivatives and related oligomers. And the article contained the following:

The synthesis and the chem. phys. characterization of new photoluminescent (PL) chromophores and polymers are reported. Chromophores (oligo-PPV sym. derivatives ending with amino groups) are strong blue emitters with a PL quantum yield of ∼70% in dioxane solution They have been used to prepare polyamides by reaction with aliphatic acyl dichlorides in which emitting and non emitting units are alternated. PL properties of the synthesized polyamides have been evaluated in solution and reveal a strong blue emission (PL quantum yield ∼60%), to increase the solubility of these systems, oligomers have been purposely prepared and then characterized. They show a peculiar white emission when excited in DMF solution; to get insight into this interesting behavior, asym. monoacetylated chromophores have been prepared as model compounds for the chromophoric end groups of the polyamide chains. The emission spectra of these compounds reveal a broad excimeric yellow emission which is responsible, along with the blue emission of the inner chromophoric units, of the overall white emission of the oligomers. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2677-2689, 2009. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

The Article related to phenylenevinylene fragment polyamide dodecanoyl suberoyl synthesis photoluminescence fluorescence, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Application In Synthesis of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Espeel, Pieter; Celasun, Sensu; Omurtag, Pinar Sinem; Martens, Steven; Du Prez, Filip E. published an article in 2017, the title of the article was Responsive Thiolactone-Derived N-Substituted Poly(Urethane-Amide)s.Safety of 2-(2-(Vinyloxy)ethoxy)ethanol And the article contains the following content:

AB’ type monomers containing a thiolactone unit and vinyl ether moiety have been prepared with high yields. Aminolysis of the thiolactone moiety generates the corresponding thiol in situ, and upon UV-irradiation, radical polyaddition occurs in the same medium, yielding linear poly(amide-urethane)s with different side chain residues and (Poly(Ethylene Oxide)) PEO-like backbone. Moreover, these unique polymers feature lower critical solution temperature behavior in water. Systematic modification of the responsive polymers reveals the influence of the variation of the side chains and the backbone structure on the corresponding solubility properties. In selected cases, multiresponsive polymers have been developed, which also respond to pH and metal concentration The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Safety of 2-(2-(Vinyloxy)ethoxy)ethanol

The Article related to responsive thiolactone polyurethaneamide, aminolysis, polyaddition, responsive polymers, thiol-ene, thiolactone, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Safety of 2-(2-(Vinyloxy)ethoxy)ethanol

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On February 29, 2020, Shakirov, I. I.; Boronoev, M. P.; Sinikova, N. A.; Karakhanov, E. A.; Maksimov, A. L. published an article.Electric Literature of 91-16-7 The title of the article was Selective Hydrogenation of Phenylacetylene on a Pd-Containing Catalyst Based on a Polymer Layered Substrate. And the article contained the following:

A Pd-containing catalyst based on a layered substrate obtained by the polymerization of 2,3,6,7,10,11-hexahydroxytriphenylene and terephthalic aldehyde was developed and studied. The process of liquid-phase hydrogenation of phenylacetylene was studied on the obtained catalyst. It was found that high selectivity for styrene (97%) with complete phenylacetylene conversion is achieved at a hydrogen pressure of 0.1 MPa and a temperature of 40°C. It has been shown that the catalyst exhibits high stability-maintaining conversion and selectivity for 6 cycles. The experimental process involved the reaction of 1,2-Dimethoxybenzene(cas: 91-16-7).Electric Literature of 91-16-7

The Article related to hexahydroxytriphenylene terephthalic aldehyde copolymer impregnated palladium catalyst phenylacetylene hydrogenation, Chemistry of Synthetic High Polymers: Monomers and Reagents Used In Polymerization and other aspects.Electric Literature of 91-16-7

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On May 1, 2009, Wild, Andreas; Egbe, Daniel A. M.; Birckner, Eckhard; Cimrova, Vera; Baumann, Reinhard; Grummt, Ulrich-Walter; Schubert, Ulrich S. published an article.Computed Properties of 146370-51-6 The title of the article was Anthracene- and thiophene-containing MEH-PPE-PPVs: Synthesis and study of the effect of the aromatic ring position on the photophysical and electrochemical properties. And the article contained the following:

This contribution reports on the synthesis and characterization of thiophene- (P1, P2, and P3) and anthracene- (P4 and P5) containing PPE-PPV [poly(phenylene-ethynylene)-poly(phenylenevinylene)] copolymers. The thermostable, soluble and film-forming polymers were fully characterized by NMR, IR and elemental anal.; they exhibit high molar masses with polydispersity indexes below 2.5. The position of the thiophene in the polymeric backbone has insignificant influence on the spectroscopic properties of the polymers. In contrast, the anthracene-containing polymers reveal position dependent optical properties. A constant bathochromic shift of 50 nm was observed going from P4, where anthracene is surrounded by two double bonds, to P5, where anthracene is at the bridge between a triple bond and a double bond, as well as from P5 to P6 where anthracene is surrounded by two triple bonds. This correlates to the decrease of the observed anthracene band around 255 nm going from P4 through P5 to P6, amounting to the degree of contribution of the anthracene unit to the main chain conjugation. The phenomenon known as CN-PPV effect was observed in the case of P4 [Φf (solution) = 3%, Φf (solid) = 13%]. Electrochem. studies carried out under absolute inert conditions revealed lower electrochem. band gap energies, Egec, than Egopt. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 2243-2261, 2009. The experimental process involved the reaction of 1-((2-Ethylhexyl)oxy)-4-methoxybenzene(cas: 146370-51-6).Computed Properties of 146370-51-6

The Article related to thiophene anthracene polyphenylenevinylene polyphenyleneethynylene conjugated polymer photophys electrochem property, Chemistry of Synthetic High Polymers: Organic Condensation and Step Polymerization and other aspects.Computed Properties of 146370-51-6

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

On July 31, 2021, Trusiano, Giuseppe; Vitale, Alessandra; Pulfer, Jason; Newton, Josiah; Joly-Duhamel, Christine; Friesen, Chadron M.; Bongiovanni, Roberta published an article.Product Details of 929-37-3 The title of the article was Novel perfluoropolyalkylethers monomers: synthesis and photo-induced cationic polymerization. And the article contained the following:

Abstract: Several difunctional oligomers were synthesized by functionalizing perfluoropolyalkylether (PFPAE) chains with different vinyl ethers and epoxides end-groups. Due to their innate synthetic challenges and demanding purification protocols, the PFPAE derivatives were obtained in low yield and with an average functionality lower than 2. However, the functionalized PFPAE oligomers were successful in being used in photo-induced cationic polymerization processes, obtaining transparent and soft films. The influences of the fluorinated chains, and various end-groups on the photopolymerization process were investigated, as well their chem. stability, thermal degradation, and surface properties. The experimental process involved the reaction of 2-(2-(Vinyloxy)ethoxy)ethanol(cas: 929-37-3).Product Details of 929-37-3

The Article related to perfluoropolyalkylether epoxy photo induced cationic polymerization, fluoropolymers, functionalized perfluoropolyalkylethers, photopolymerization, Chemistry of Synthetic High Polymers: Monomers and Reagents Used In Polymerization and other aspects.Product Details of 929-37-3

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem