New discoveries in chemical research and development in 2021. The appropriate choice of redox mediator can avoid electrode passivation and overpotential, which strongly inhibit the efficient activation of substrates in electrolysis.1895-39-2, Name is Sodium 2-chloro-2,2-difluoroacetate, molecular formula is C2ClF2NaO2. In an article, author is Han, So Hee,once mentioned of 1895-39-2, Formula: https://www.ambeed.com/products/1895-39-2.html.
A series of poly(hyroxyamide)s (PHAs) was prepared by direct polycondensation reaction of 4,4′-(2,3-pyridinedioxy)dibenzoic acid and/or isophthalic acid with 3,3′-dihydroxybenzidine. The yield percentages of the products were high, and the inherent viscosities of the polymer in DMAc solution at 35 degrees C were 0.31-0.59 dL/g. All PHA polymers were found to be soluble in polar aprotic solvents such as DMAc, DMSO, NMP, and DMF. On the other hand, LiCl was required to dissolve IPHA-1 in aprotic solvents. Poly(benzoxazole)s (PBOs) were partially soluble in conc-H2SO4; IPBO-4, -5, and -6 were partially soluble in NMP only when LiCl was added to the solution, and the solution was heated. The PBO polymers showed a maximum weight loss in the temperature range of 654-680 degrees C, and the char yields at 900 degrees C under nitrogen atmosphere exceeded 63%.
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Reference:
Benzoxazole – Wikipedia,
,Benzoxazole | C7H5NO – PubChem