Name: Diphenyl oxide. I found the field of Polymer Science very interesting. Saw the article Synthesis and characterization of bio-based aromatic polyketones and polyetherketones derived from divanillic acid published in 2021.0, Reprint Addresses Enomoto, Y (corresponding author), Univ Tokyo, Grad Sch Agr & Life Sci, Sci Polymer Mat,Dept Biomat Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide.
Bio-based aromatic polyketones (PKs) and polyetherketones (PEKs) were synthesized by the electrophilic substitution reaction of alkoxylated divanillic acid (R-DVA) and 2,2′-dimethoxybiphenyl or diphenylether. Alkoxy side-chains were introduced at the hydroxyl groups of DVA prior to polymerization. Polymerizations were carried out in a phosphorus pentoxide (P2O5)/methanesulfonic acid (MsOH) system. DVA-based PKs and PEKs were soluble in common organic solvents including chloroform and dimethylsulfoxide, and their chemical structures were determined by H-1 and C-13 NMR. The weight-average molecular weights (M-w) of the PKs were 2.6-15.0 x 10(3) g/mol, and those of all PEKs were approximately 1.0 x 10(3). The 10% degradation temperatures of the PKs and PEKs were 340-400 degrees C. Dynamic mechanical analysis showed that the PKs and PEKs were amorphous. The PKs with methyl to butyl side-chains exhibited high glass transition temperatures (T-g) in the range 250-297 degrees C, while T-g of PK (octyl side-chain) was 157 degrees C and those of the PEKs were 73-127 degrees C.
Name: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Enomoto, Y; Iwata, T or concate me.
Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem