Hydrogen Bonding of Trialkyl-Substituted Urea in Organic Environment.

ABSTRACT: Urea groups appear in many biomolecules and polymers. They have a significant impact on the properties of the materials because of their inherent strength and for their ability to participate in hydrogen bonds. Typically, in classical urea-based polymer materials, the urea groups occur in their N,N'-disubstituted state. Recently, bis-aspartates have been introduced as a novel type of hindered amine resins providing, upon crosslinking with (poly)isocyanates, the polyurea-polyaspartate thermosets (PU-ASPE) for coatings, sealants, polyelectrolytes, and other applications. These materials contain N,N'N'-trisubstituted urea linkages in their structures. However, the infrared (IR) characterization of trisubstituted urea groups has not been documented in suffici

SUBMITTER: Moravkova Z 

PROVIDER: S-EPMC11990808 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature