Surface Composition of Fluorinated Poly(amide urethane) Block Copolymers by Electron Spectroscopy for Chemical Analysis

This is the authors' abstract. We don't add key points for this paper.

The surface composition and near-surface depth profiles of annealed films of poly(amide urethane) block copolymers were measured using angle-dependent electron spectroscopy for chemical analysis (ESCA). Segregation of the fluorinated polyamide soft segment to the surface was detected and quantified. The poly(amide urethane)s were made from amine-terminated polyamides with N-alkylated fluorinated side chains as well as fluorinated backbones, methylenebis(cyclohexandiyl diisocyanate) (H 12 MDI), and butanediol. 1 The resulting copolymers display extremely low surface energy. A deconvolution program was utilized to obtain composition−depth profiles and to confirm phase segregation.