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Mechanical properties and chemical stability of pivalolactone-based poly(ether ester)s [PDF]
, 1994 The processing, mechanical and chemical properties of poly(ether ester)s, prepared from pivalolactone (PVL), 1,4-butanediol (4G) and dimethyl terephthalate (DMT), were studied. The poly(ether ester)s could easily be processed by injection moulding, owing
Bantjes, A. +3 more
core +11 more sources
Economics and Business Review, 2022 The paper employs a threshold regression framework conditioned by two COVID-19 related proxies, to investigate whether Bitcoin and Ether exhibit short-term safe haven or diversifier features for stock and bond markets.
Barbu Teodora Cristina +2 more
doaj +1 more source
Solvent-Dictated Sodium Sulfur Redox Reactions: Investigation of Carbonate and Ether Electrolytes
Energies, 2020 Sulfur-based cathode chemistries are essential for the development of high energy density alkali-ion batteries. Here, we elucidate the redox kinetics of sulfur confined on carbon nanotubes, comparing its performance in ether-based and carbonate-based ...
Huang Zhang +5 more
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Diethyl 4,4′-[octane-1,8-diylbis(oxy)]dibenzoate
IUCrData, 2022 The complete molecule of the title compound, C26H34O6, is generated by a crystallographic centre of symmetry and the central octyl chain adopts an extended conformation. In the extended structure, weak C—H...π interactions link the molecules.
Sultana Shakila Khan +4 more
doaj +1 more source
Bitcoin as a Safe Haven during COVID-19 Disease
Future Internet, 2022 In this paper, we investigate the role of Bitcoin as a safe haven against the stock market losses during the spread of COVID-19. The performed analysis was based on a regression model with dummy variables defined around some crucial dates of the pandemic
Luisanna Cocco +2 more
doaj +1 more source
One-step Selective Synthesis of 13-epi-manoyl Oxide
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2021 The selective one-step synthesis of 13-epi-manoyl oxide is reported based on a low-temperature superacidic cyclization of sclareol. The reaction conditions have been finely tuned in order to achieve a 9:1 ratio between epimeric oxides in favor of the ...
Olga Morarescu +5 more
doaj +1 more source
Exchange reactions of poly(arylene ether ketone) dithioketals with aliphatic diols: formation and deprotection of poly(arylene ether ketal)s [PDF]
, 2017 The dithioketal derivatives of industrially important, semi-crystalline poly(arylene ether ketone)s undergo facile exchange with aliphatic diols in the presence of N-bromo-succinimide to give a range of novel poly(arylene ether ketal)s.
Colquhoun, Howard +2 more
core +1 more source
Gravity as Archimedes' thrust and a bifurcation in that theory [PDF]
, 2004 Euler's interpretation of Newton's gravity (NG) as Archimedes' thrust in a fluid ether is presented in some detail. Then a semi-heuristic mechanism for gravity, close to Euler's, is recalled and compared with the latter.
A. Einstein +25 more
core +5 more sources
Frontiers in Chemistry, 2017 The reaction of diaza-5H-benzo[a]phenoxazin-5-one and 5H-benzo[a]phenoxazin-5-one with various phenols catalyzed by Pd/t-BuXPhos/K3PO4 system gave previously unknown ether derivatives (7a–f and 8a–f) in good yields. UV-visible, FTIR, and 1H NMR data were
Mercy A. Ezeokonkwo +5 more
doaj +1 more source
Crystal structure of ethyl 4-[(4-methylbenzyl)oxy]benzoate
Acta Crystallographica Section E: Crystallographic Communications, 2022 The title compound, C17H18O3, crystallizes with three molecules in the asymmetric unit. The molecules differ in the conformation related to the ethoxy group and in the orientation of the two phenyl rings, one of which has the ethoxy group disordered over
Md. Hasan Al Banna +4 more
doaj +1 more source