Tag: M.W=150-200

Recommanded Product: Diphenyl oxide. I found the field of Engineering; Environmental Sciences & Ecology very interesting. Saw the article A novel management strategy for removal and degradation of polybrominated diphenyl ethers (PBDEs) in waste printed circuit boards published in 2019.0, Reprint Addresses Xiu, FR (corresponding author), Xian Univ Sci & Technol, Coll Geol & Environm, Xian 710054, Shaanxi, Peoples R China.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide.

Waste printed circuit boards (PCBs) contain a high level of brominated flame retardants (BFRs), among which polybrominated biphenyl ethers (PBDEs) are the most widely used additive BFRs. PBDEs are considered to be a type of persistent organic pollutants (POPS). The efficient removal/degradation of PBDEs in waste PCBs is an urgent problem in electronic waste treatment, but the degradation of PBDEs is a great challenge due to their extreme stability and persistence in nature. In this study, a novel management strategy was developed for removal and degradation of PBDEs in waste PCBs by using a simple subcritical methanol (SubCM) process. The results showed that reaction temperature, residence time, solid-to-liquid ratio, and additive NaOH are key factors influencing the removal of PBDEs from waste PCBs. Under optimal conditions (200 degrees C, 60 min, 1:20 g/mL), the removal efficiency of Sigma(8) PBDEs from waste PCBs could reach 91.3% and 98.8% for the proposed process of SubCM and SubCM + NaOH, respectively. When the temperature is below 200 degrees C, highly brominated PBDEs congeners in waste PCBs were degraded into 2,’3,4′,6-Tetrabromodiphenyl ether (BDE71) and 2,4,4′-Tribromodiphenyl ether (BDE28) after SubCM treatment. 4-Bromophenyl ether (BDE4) and diphenyl ether were generated by the further debromination of BDE71 and BDE28 with the increase of treatment temperature. The debromination temperature of PBDEs congeners in SubCM could be markedly lowered by adding 4 g/L of NaOH. The complete debromination of PBDEs congeners in waste PCBs could be achieved at 300 degrees C and 250 degrees C for the developed process of SubCM and SubCM + NaOH, respectively. (C) 2019 Elsevier Ltd. All rights reserved.

About Diphenyl oxide, If you have any questions, you can contact Xiu, FR; Yu, X; Qi, YY; Li, YF; Lu, YW; Wang, YX; He, JH; Zhou, K; Song, ZQ; Gao, X or concate me.. Recommanded Product: Diphenyl oxide

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In 2020 POLYMER published article about SYNDIOTACTIC POLYSTYRENE; GAS SORPTION; POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE); AMORPHOUS PHASES; SINGLE-CRYSTALS; X-RAY; TRANSPORT; FILMS; MEMBRANES; DELTA in [Guerra, Gaetano] Univ Salerno, Dipartimento Chim & Biol, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy; Univ Salerno, INSTM Res Unit, Via Giovanni Paolo II 132, I-84084 Fisciano, Italy in 2020, Cited 49. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4. Application In Synthesis of Benzyl ether

The stability of a and beta nanoporous-crystalline (NC) forms of Poly(2,6-dimethyl-1,4-phenylene) oxide (PPO), in the presence of guest molecules leading to crystallization in a and beta-form (alpha and beta-guests), is explored. Sorption of liquid guests at 30 degrees C and 60 degrees C is studied both for NC films and NC aerogels. WAXD and FTIR characterizations show that, for all considered conditions, NC alpha-phases after guest sorption/desorption remain unaltered. NC beta-phases, on the contrary, after alpha-guest sorption can be transformed in co-crystalline (CC) alpha-phases that after guest desorption are transformed in NC alpha-phases. All conducted experiments also show that possible planar orientations of NC films (c//or c perpendicular to orientations) remain essentially unaltered, after sorption of all considered guest molecules. The presently discovered beta ->alpha transition constitutes a route to obtain unoriented alpha-form films, which till now were not available by known preparation procedures.

Application In Synthesis of Benzyl ether. About Benzyl ether, If you have any questions, you can contact Nagendra, B; Cozzolino, A; Golla, M; Daniel, C; Rizzo, P; Guerra, G or concate me.

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Ether – Wikipedia,
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Authors Ashraf, MA; Liu, ZL; Peng, WX; Zhou, L in SPRINGER published article about CROSS-COUPLING REACTION; LIGAND-FREE; C-S; ONE-POT; ODORLESS SYNTHESIS; HETEROGENEOUS NANOCATALYST; TRIPHENYLTIN CHLORIDE; DIARYL SULFIDES; O-ARYLATION; HALIDES in [Ashraf, Muhammad Ageel; Peng, Wan-Xi] Henan Agr Univ, Sch Forestry, Zhengzhou 450002, Henan, Peoples R China; [Ashraf, Muhammad Ageel] Univ Malaya, Fac Sci, Dept Geol, Kuala Lumpur 50603, Malaysia; [Liu, Zhenling] Henan Univ Technol, Sch Management, Zhengzhou 450001, Henan, Peoples R China; [Zhou, Liang] Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China in 2020.0, Cited 65.0. Formula: C12H10O. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

In the present study, copper complex supported on surface-modified Fe3O4/SiO2 nanoparticles (Fe3O4@SiO2-Glycerole-Cu(II)) was successfully fabricated and characterized by fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray mapping, energy-dispersive X-ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES), N-2 adsorption and desorption (BET) and Vibrating Sample Magnetometer (VSM) techniques. This magnetic nanocatalyst utilized as an effective catalyst for the C-S and C-O cross-coupling reactions of aryl halides with thiourea and phenol. The catalyst could be quickly and completely recovered using an external magnetic field and reused for six reaction cycles without significant change in catalytic activity. [GRAPHICS] .

Formula: C12H10O. About Diphenyl oxide, If you have any questions, you can contact Ashraf, MA; Liu, ZL; Peng, WX; Zhou, L or concate me.

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Ether – Wikipedia,
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Application In Synthesis of Diphenyl oxide. Authors Wang, Q; Xiao, J; Su, YH; Huang, JW; Li, JH; Qiu, LG; Zhan, MX; He, X; Yuan, WZ; Li, Y in ROYAL SOC CHEMISTRY published article about in [Wang, Qian; Xiao, Jing; Su, Yanhong; Huang, Jianwen; Li, Jihua; Qiu, Lige; Zhan, Meixiao; He, Xu; Li, Yong] Jinan Univ, Zhuhai Hosp, Zhuhai Peoples Hosp, Zhuhai Intervent Med Ctr,Zhuhai Precis Med Ctr, Zhuhai 519000, Guangdong, Peoples R China; [Wang, Qian; Yuan, Weizhong] Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China in 2021.0, Cited 58.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Amphiphilic thermoresponsive block helical poly(phenyl isocyanide) was synthesized by the polymerization of phenyl isocyanide using a Pd(ii) complex catalyst as an initiator. The polymer could self-assemble into spherical micelles. The lower critical solution temperature (LCST) of the micelle solution was adjusted by changing the molar ratio of the hydrophobic segment to the hydrophilic segment and finally optimized to be 41 degrees C at a molar ratio of 1 : 2. After loading Fe3O4 nanoparticles, the magnetic complex micelles were prepared. The magnetic complex micelles demonstrated reversible thermoresponsiveness and obvious magnetic hyperthermia. Cell viability measurements indicated that the nanomaterials were well-biocompatible and nontoxic. The magnetic complex micelles could be used as nanocarriers to achieve controlled release of doxorubicin (DOX) by altering the temperature. Intracellular experiments demonstrated that the magnetic complex micelles showed excellent anticancer synergistic thermo-chemotherapy performance under an alternating magnetic field (AMF) owing to magnetic hyperthermia from micelle-loaded Fe3O4 nanoparticles and effective drug release due to the morphology change of thermoresponsive poly(phenyl isocyanide)s.

About Diphenyl oxide, If you have any questions, you can contact Wang, Q; Xiao, J; Su, YH; Huang, JW; Li, JH; Qiu, LG; Zhan, MX; He, X; Yuan, WZ; Li, Y or concate me.. Application In Synthesis of Diphenyl oxide

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Ether – Wikipedia,
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I found the field of Polymer Science very interesting. Saw the article Two Nanoporous Crystalline Forms of Poly(2,6-dimethyl-1,4-phenylene)oxide and Related Co-Crystalline Forms published in 2019. Computed Properties of C14H14O, Reprint Addresses Rizzo, P (corresponding author), Univ Salerno, Dipartimento Chim & Biol, Via Ponte Don Melillo, I-84084 Fisciano, Italy.; Rizzo, P (corresponding author), Univ Salerno, INSTM Res Unit, Via Ponte Don Melillo, I-84084 Fisciano, Italy.. The CAS is 103-50-4. Through research, I have a further understanding and discovery of Benzyl ether

Extensive characterizations, mainly by wide-angle X-ray diffraction (WAXD) and Fourier transform infrared (FTIR) techniques, are reported for co-crystalline (CC) poly(2,6-dimethyl-1,4-phenylene)-oxide (PPO) films with many different low-molecular-mass guest molecules. These characterizations are also reported for the corresponding nanoporous crystalline (NC) phases, as obtained by suitable guest-removal procedures. Two well-separated NC forms, hereafter named alpha and beta, are obtained by guest removal from two well-separated groups of CC forms. alpha and beta NC forms can be easily recognized by reflections in WAXD patterns as well as by suitable FTIR crystalline peaks. Density and degree of crystallinity measurements confirm that both NC phases exhibit a density definitely smaller than for the amorphous phase (rho(am) = 1.04 g/cm(3) rho(beta) = 0.95 g/cm(3) > rho(alpha) = 0.93 g/cm(3)). Density functional theory calculations combined with geometrical analysis on PPO model systems indicate conformations suitable to fit the observed chain periodicities of the two crystalline forms (c = 5.28 and 5.47 angstrom, for alpha and beta NC forms, respectively).

About Benzyl ether, If you have any questions, you can contact Nagendra, B; Cozzolino, A; Daniel, C; Rizzo, P; Guerra, G; Auriemma, F; De Rosa, C; D’Alterio, MC; Tarallo, O; Nuzzo, A or concate me.. Computed Properties of C14H14O

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Ether – Wikipedia,
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Authors Oleszek, S; Kumagai, S; Grabda, M; Shiota, K; Yoshioka, T; Takaoka, M in ELSEVIER published article about in [Oleszek, Sylwia; Shiota, Kenji; Takaoka, Masaki] Kyoto Univ, Grad Sch Engn, Dept Environm Engn, Nishikyo Ku, Katsura C-1-3, Kyoto 6158540, Japan; [Oleszek, Sylwia; Grabda, Mariusz] Polish Acad Sci, Inst Environm Engn, M Sklodowska Curie 34, PL-41819 Zabrze, Poland; [Kumagai, Shogo; Yoshioka, Toshiaki] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan in 2021.0, Cited 44.0. Category: ethers-buliding-blocks. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Polycarbonate (PC) is an engineering thermoplastic that is widely used in electrical and electronic equipment. This plastic often contains tetrabromobisphenol A (TBBA), the most common brominated flame retardant. Thermal degradation of the PC-TBBA leads to generation of numerous bromo-organic products in the pyrolytic oil, hindering its appropriate utilization, as well as corrosive hydrogen bromide gas. The purpose of this study was to experimentally investigate and compare the pyrolysis products of PC-TBBA and PC-TBBA + Cu2O at various temperatures, with an emphasis on the yield and distribution of brominated compounds. In pyrolysis of PC-TBBA + Cu2O, at the maximum degradation temperature (600 degrees C), as much as 86% of total Br was trapped in the residue, while 3% and 11% were distributed in the condensate and gas fractions, respectively. In contrast, the distribution of Br from non-catalytic pyrolysis of PC-TBBA (600 degrees C) was 0.5% residue, 40% condensate, and 60% gas. The results of this study revealed that in the presence of Cu2O, organo-bromine products were most likely involved in Ullman-type coupling reactions, leading to early cross-linking of the polymer network that efficiently hinders their vaporization. HBr in the gas fraction was suppressed due to effective fixation of bromine in residue in the form of CuBr.

About Diphenyl oxide, If you have any questions, you can contact Oleszek, S; Kumagai, S; Grabda, M; Shiota, K; Yoshioka, T; Takaoka, M or concate me.. Category: ethers-buliding-blocks

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

Recommanded Product: Diphenyl oxide. In 2019.0 CURR ANAL CHEM published article about POLYBROMINATED DIPHENYL ETHERS; MOLECULAR DOCKING; BIOLOGICAL TOXICITY; 3D QSAR; IDENTIFICATION; 3D-QSAR; EXTRACTION; INHIBITORS; SEDIMENTS; EXPOSURE in [Zhang, Shujing; Qiu, Youli; Li, Yu] North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China in 2019.0, Cited 33.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Background: Polybrominated diphenyl ethers (PBDEs) are dangerous for the environment and human health because of their persistent organic pollutant (POP) characteristics, which have attracted extensive research attention. Raman spectroscopy is a simple highly sensitive detection operation. This study was performed to obtain environmentally friendly non-POP PBDE derivatives with simple detection-based molecular design and provide theoretical support for establishing enhanced Raman spectroscopic detection techniques. Methods: A three-dimensional quantitative structure-activity relationship (3DQSAR) pharmacophore model of characteristic PBDE Raman spectral was established using 20 and 10 PBDEs as training and test sets, respectively. Full-factor experimental design was used to modify representative commercial PBDEs, and their flame retardancy and POP characteristics were evaluated. Results: The pharmacophore model (Hypol) exhibited good predictive ability with the largest correlation coefficient (R-2) of 0.88, the smallest root mean square (RMS) value of 0.231, and total cost of 81.488 with a configuration value of 12.56 (<17).74 monosubstituted and disubstituted PBDE derivatives were obtained based on the Hypo 1 pharmacophore model and full-factor experimental design auxiliary. Twenty PBDE derivatives were screened, and their flame-retardant capabilities were enhanced and their migration and bio-concentration were reduced (log(K-OW) <5), with unchanged toxicity and high biodegradability. The Raman spectral intensities increased up to 380%. In addition, interference analysis of the Raman peaks by group frequency indicated that the 20 PBDE derivatives were easily detected with no interference in gaseous environments. Conclusion: Nine pharmacophore models were constructed in this study; Hypo 1 was the most accurate. Twenty PBDE derivatives showed Raman spectral intensities increased up to 380%; these were classified as new non-POP environmentally friendly flame retardants with low toxicity, low migration, good biodegradability, and low bio-concentrations. 2D QSAR analysis showed that the most positive Milliken charge and lowest occupied orbital energy were the main contributors to the PBDE Raman spectral intensities. Raman peak analysis revealed no interference between the derivatives in gaseous environments. Recommanded Product: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Zhang, SJ; Qiu, YL; Li, Y or concate me.

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

Jiang, HB; Xu, XC; Zhang, R; Zhang, Y; Chen, J; Yang, FL in [Jiang, Hongbin; Xu, Xiaochen; Zhang, Rao; Zhang, Yun; Chen, Jie; Yang, Fenglin] Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn, Minist Educ, Sch Environm Sci & Technol, Linggong Rd 2, Dalian 116024, Peoples R China published Nano ferrites (AFe(2)O(4), A = Zn, Co, Mn, Cu) as efficient catalysts for catalytic ozonation of toluene in 2020, Cited 45. COA of Formula: C14H14O. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4.

Nano ferrites (AFe(2)O(4), A = Zn, Co, Mn, Cu) were supported on the surface of gamma-Al2O3 support by hydrothermal synthesis to prepare a series of novel composite catalysts (AFe(2)O(4)/gamma-Al2O3) for catalytic ozonation for elimination of high concentration toluene at ambient temperature. The characterization results showed that the high-purity nano-AFe(2)O(4) particles were uniformly loaded on mesoporous gamma-Al2O3. Further, it was confirmed that among the several catalysts prepared, the amount of oxygen vacancies (O-vs), Lewis acid sites (LAS), and BrOnsted acid sites (BAS) of the ZnFe2O4/gamma-Al2O3 catalyst were the highest. This meant that the ZnFe2O4/gamma-Al2O3 catalyst had a strong adsorption capacity for toluene and ozone (O-3), and had a strong catalytic activity. When the temperature was 293 K and the space velocity was 1500 h(-1), the mol ratio of O-3 to toluene was 6, the degradation rate of toluene (600 mg m(-3)) can reach an optimum of 99.8%. The results of electron paramagnetic resonance (EPR) and Fourier infrared (FT-IR) proved superoxide radicals and hydroxyl radicals by catalytic ozonation. Moreover, the GC-MS analysis results indicated that the toluene degradation began with the oxidation of methyl groups on the benzene ring, eventually producing CO2 and H2O. After repeated experiments, the toluene degradation rate remained stable, and the residual content of O-3 in each litre of produced gas was less than 1 mg L-1, thereby indicating that the ZnFe2O4/gamma-Al2O3 catalyst had excellent reusability and showed great potential for the treatment of toluene waste gas.

COA of Formula: C14H14O. About Benzyl ether, If you have any questions, you can contact Jiang, HB; Xu, XC; Zhang, R; Zhang, Y; Chen, J; Yang, FL or concate me.

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

Recently I am researching about IRON-OXIDE NANOPARTICLES; SHAPE; NANOCUBES; NANORODS; FLOW, Saw an article supported by the Research Council of NorwayResearch Council of Norway [197411/V30]; RFBRRussian Foundation for Basic Research (RFBR) [20-37-70007]. Published in ROYAL SOC CHEMISTRY in CAMBRIDGE ,Authors: Singh, G; Myasnichenko, VS; Glomm, WR. The CAS is 103-50-4. Through research, I have a further understanding and discovery of Benzyl ether. SDS of cas: 103-50-4

Synthesis of size-controlled anisotropic magnetite (Fe3O4) nanoparticles allows designing next-generation magnetic nanosystems with predetermined magnetic properties suited for particular applications in the biomedical, information, and environment fields. In this work, we report a reproducible and economical approach for fabricating anisotropic Fe3O4 nanoparticles via the thermal decomposition method. Controlling the reaction environment, i.e. the degassing pressure, is essential to obtain the reproducible synthesis of anisotropic Fe3O4 nanoparticles along with monodispersity in the size and shape. At low degassing pressure, Fe3O4 nanocubes are formed, and an increase in degassing pressure leads to the formation of Fe3O4 octahedral nanoparticles. To achieve good reproducibility (with respect to size and shape) between different batches, our finding reveals the importance of maintaing the same degassing pressure. The size of the anisotropic Fe3O4 nanoparticles can be varied by changing the heating rate and the solvent amount. The amount of solvent has also an influence on the shape of the nanoparticles, and Fe3O4 nanoparticles of flower morphology are obtained at a high solvent amount. The work also provides new conceptual fundamental insights into understanding the growth mechanism of anisotropic Fe3O4 nanoparticles and thus advancing the field of materials chemistry for rationally designing anisotropic nanoparticles with tunable magnetic properties.

SDS of cas: 103-50-4. About Benzyl ether, If you have any questions, you can contact Singh, G; Myasnichenko, VS; Glomm, WR or concate me.

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

COA of Formula: C12H10O. Jankovic, B; Manic, N; Dodevski, V; Popovic, J; Rusmirovic, JD; Tosic, M in [Jankovic, Bojan; Tosic, Milos] Univ Belgrade, Inst Nucl Sci Vinca, Dept Phys Chem, Mike Petrovica Alasa 12-14,POB 522, Belgrade 11001, Serbia; [Manic, Nebojsa] Univ Belgrade, Fac Mech Engn, Fuel & Combust Lab, Kraljice Marije 16,POB 35, Belgrade 11120, Serbia; [Dodevski, Vladimir] Univ Belgrade, Inst Nucl Sci Vinca, Mat Sci Lab, Mike Petrovica Alasa 12-14,POB 522, Belgrade 11001, Serbia; [Popovic, Jasmina] Univ Belgrade, Fac Forestry, Dept Chem & Mech Wood Proc, Kneza Viseslava 1, Belgrade 11030, Serbia; [Rusmirovic, Jelena D.] Univ Belgrade, Fac Technol & Met, Innovat Ctr, Karnegijeva St 4, Belgrade 11120, Serbia published Characterization analysis of Poplar fluff pyrolysis products. Multi-component kinetic study in 2019, Cited 72. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

This paper describes the pyrolysis of Poplar fluff (from Populus alba) using on-line apparatus, and carbonization process at 850 degrees C using the fixed bed reactor. Characteristics of pyrolysis products were examined. Elemental and chemical analyses were shown that Poplar fluff has higher energy content characterized by increased content of fibrous structure (particularly cellulose). Independent parallel reactions model very well describes devolatilization process. It was found that increased amount of extractives can significantly affect on increased release of light gaseous products, but declining hydrocarbons, mostly the alkanes. Liquid product is mainly composed of phenolics, aldehydes, acids, esters and ketones. The carbonization process produces the great abundance of polycyclic aromatic hydrocarbons (PAH’s), where naphthalene is the most abundant. Mechanism for PAH’s formation was suggested. This study represents the first step in a much wider and more comprehensive way in thermal conversion processes of this type of fuel.

COA of Formula: C12H10O. About Diphenyl oxide, If you have any questions, you can contact Jankovic, B; Manic, N; Dodevski, V; Popovic, J; Rusmirovic, JD; Tosic, M or concate me.

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