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

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....

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Bibliographic Details
Published in:Macromolecules 1996-02, Vol.29 (5), p.1660-1665
Main Authors: Zhuang, Hengzhong, Marra, Kacey Gribbin, Ho, Tai, Chapman, Toby M, Gardella, Joseph A
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surface properties
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Summary: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) (H12MDI), and butanediol. The resulting copolymers display extremely low surface energy. A deconvolution program was utilized to obtain compositionāˆ’depth profiles and to confirm phase segregation.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma950860d