Nuzhdina, Yu. A. et al. published their research in Kompozitsionnye Polimernye Materialy (1979-1996?) in 1989 | CAS: 5339-69-5

N-Isopropylbenzenesulfonamide (cas: 5339-69-5) belongs to amides. The amide group is called a peptide bond when it is part of the main chain of a protein, and an isopeptide bond when it occurs in a side chain, such as in the amino acids asparagine and glutamine. Amides are not in general accessible by the direct condensation of amines with carboxylic acids for two reasons: first, both components are readily deactivated by a transfer of a proton from the acid to the amine and second, the hydroxy unit on the carbonyl of the acid is a relatively poor leaving group. Nevertheless, the formation of five- and six-membered rings is often surprisingly simple provided that other factors can be brought into play to assist in the condensation.Computed Properties of C9H13NO2S

Structural changes of poly(m-phenyleneisophthalamide) with different plasticization types was written by Nuzhdina, Yu. A.;Nizhnik, V. V.;Kuchinka, M. M.;Zakharchuk, V. I.;Pechnikov, A. V.. And the article was included in Kompozitsionnye Polimernye Materialy (1979-1996?) in 1989.Computed Properties of C9H13NO2S This article mentions the following:

Physicomech. properties and structure of poly(m-phenyleneisophthalamide) (I) formed in the presence of low-mol.weight substances with different types of plasticizing action were studied. Iso-PrNHSO2Ph (II) and iso-PrN(SO2Ph)2 (III) were used as modifiers and 2,2′-bis(p-phenylaminophenoxy)diethyl ether (IV) as a heat stabilizer for I. The plasticizer effect on intermol. interaction in I compositions and total structural ordering was studied. Concentration dependences of spectral and physicomech. properties of I differ for II and III. IR spectroscopy showed a weakening of intermol. H bonds upon addition of plasticizers to I, the highest changes in IR spectra of I being observed at small additive contents. The formation of I compositions in the presence of plasticizers was accompanied by structural changes in the polymer matrix due to the rearrangement of macromols. The rearrangement affected the strength and content of interchain contacts and IV, depending on the chem. nature and type of plasticizing action of introduced additives. In the experiment, the researchers used many compounds, for example, N-Isopropylbenzenesulfonamide (cas: 5339-69-5Computed Properties of C9H13NO2S).

N-Isopropylbenzenesulfonamide (cas: 5339-69-5) belongs to amides. The amide group is called a peptide bond when it is part of the main chain of a protein, and an isopeptide bond when it occurs in a side chain, such as in the amino acids asparagine and glutamine. Amides are not in general accessible by the direct condensation of amines with carboxylic acids for two reasons: first, both components are readily deactivated by a transfer of a proton from the acid to the amine and second, the hydroxy unit on the carbonyl of the acid is a relatively poor leaving group. Nevertheless, the formation of five- and six-membered rings is often surprisingly simple provided that other factors can be brought into play to assist in the condensation.Computed Properties of C9H13NO2S

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics