Properties of reaction products of hydroxymethylated 2‐substituted 4,6‐diamino‐s‐triazines with cotton

摘要

AbstractA study has been made of the reaction products of hydroxymethylated 2‐substituted (X) 4,6‐diamino‐s‐triazines (MXT) with cotton fabrics in the presence of zinc nitrate as catalyst. The reagents used were MXT having the following substituents: methoxy (MMT), isopropoxy (MIPT), methyl (acetoguanamine) (MAG), monoethylamino N‐(2‐ethyl)melamine (MEM), monohydroxyethylamino N‐(2‐hydroxyethyl)melamine(MHEM), and dihydroxyethylamino N,N‐bis(2‐hydroxyethyl)melamine (MBHEM) groups. Trimethylolmelamine (TMM), dimethylolurea (DMU), dimethylolethyleneurea (DMEU), and dimethylolethyltriazone (DMET) were also used for comparison.The molar ratio of total formaldehyde to 2‐substituted 4,6‐diamino‐s‐triazine (XT) residue in treated fabrics is larger in high‐temperature curing than in low‐temperature curing. In case of curing at 150°C for 5 min, MHEM and MBHEM crosslinked primarily with cellulose in a monomeric state, and the others in a oligomeric state. From these facts, the crosslinked structures were presumed. Infrared absorption spectra of the fabrics treated with MXT are discussed and a few physical properties of the fabrics are compared with those of the fabrics finish