Tundidor-Camba, Alain team published research in Polymer Bulletin (Heidelberg, Germany) in 2021 | 31643-49-9

SDS of cas: 31643-49-9, 4-Nitrophthalonitrile, also known as 4-Nitrophthalonitrile, is a useful research compound. Its molecular formula is C8H3N3O2 and its molecular weight is 173.13 g/mol. The purity is usually > 95%.
4-Nitrophthalonitrile is a chemical substance that can be synthesized by the reaction of sodium carbonate with 3,4,5-trimethoxybenzyl alcohol. It can also be prepared using nitro phenol and sodium hydroxide. 4-Nitrophthalonitrile has been shown to have high photochemical activity in the presence of light. The frequency shift of its infrared spectrum is indicative of a nucleophilic addition reaction mechanism. 4-Nitrophthalonitrile has been used as an intermediate for producing other chemicals, such as herbicides and pharmaceuticals., 31643-49-9.

Nitrile is any organic compound with a −C≡N functional group. 31643-49-9, formula is C8H3N3O2, Name is 4-Nitrophthalonitrile.The prefix cyano- is used interchangeably with the term nitrile in literature. SDS of cas: 31643-49-9.

Tundidor-Camba, Alain;Tagle, Luis H.;Terraza, Claudio A.;Rivera, Jorge;Coll, Deysma;Ortiz, Pablo A. research published 《 Tri-functional oligomeric polyesters prepared from new dicarboxylic acids containing several amino acids residues by Higashi methodology: synthesis, characterization, and study of solubility and thermal behavior》, the research content is summarized as follows. Abstract: The synthesis of polyfunctional aliphatic oligomeric polyesters (poly(ether-imido-esters); PEIEs) containing several amino acid residues is described, and their thermal properties and solubility behavior were studied. The new sym. monomeric dicarboxylic acids were synthesized using 4-nitrophthalonitrile as starting material, which reacted with bisphenol-A or bis(4-hydroxyphenyl)diphenylmethane. Then, the tetranitrile derivatives were hydrolyzed to the tetracarboxylic acids and dehydrated to the resp. dianhydrides. Finally, these compounds reacted with the amino acids glycine or L-alanine to obtain the aliphatic dicarboxylic acid monomers. PEIEs were obtained by Higashi methodol. from these monomers and bisphenol-A, characterized by elemental anal., NMR and IR, and the results were in agreement with the structures. The materials were soluble at 25°C in several aprotic polar organic solvents and some in CHCl3 and THF. In agreement with the viscosity and SEC results, PEIEs were oligomers with d.p. of four and six, and Mw and Mn between 7370-9790 g/mol and 3680-4850 g/mol, resp. The samples showed low Tg values (124-160°C), associated with important structural flexibility promotes by dicarboxylic acid monomers. Despite this, this parameter depended of the aminoacidic residue nature in the sense that when the volume of it increased, the Tg also increased due to a decrease in the free rotation that neg. affects the segmental movements of the chains. This effect was also observed when the side groups of the diphenol moiety of the dicarboxylic acid monomers increase from Me to Ph. The recorded TDT10% values from the TGA anal. (334-457°C) do not allow to consider these samples as thermoset materials. In this sense, it was possible to observe an average increase of 8-13°C and 23-28°C when the lateral group volume of the amino acid residues and of the diphenol moiety are increased, resp.

SDS of cas: 31643-49-9, 4-Nitrophthalonitrile, also known as 4-Nitrophthalonitrile, is a useful research compound. Its molecular formula is C8H3N3O2 and its molecular weight is 173.13 g/mol. The purity is usually > 95%.
4-Nitrophthalonitrile is a chemical substance that can be synthesized by the reaction of sodium carbonate with 3,4,5-trimethoxybenzyl alcohol. It can also be prepared using nitro phenol and sodium hydroxide. 4-Nitrophthalonitrile has been shown to have high photochemical activity in the presence of light. The frequency shift of its infrared spectrum is indicative of a nucleophilic addition reaction mechanism. 4-Nitrophthalonitrile has been used as an intermediate for producing other chemicals, such as herbicides and pharmaceuticals., 31643-49-9.

Referemce:
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts