Premium
Modified Diblock Copolymer Bearing Fluoro Groups and Evaluation of its Hydrophobic Properties
Author(s) -
Politakos N.,
Kortaberria G.,
Zalakain I.,
Avgeropoulos A.,
Mondragon I.
Publication year - 2012
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201251108
Subject(s) - copolymer , contact angle , materials science , polystyrene , thermogravimetric analysis , surface energy , polymer , characterization (materials science) , microstructure , polymer chemistry , scanning electron microscope , chemical engineering , composite material , nanotechnology , engineering
Summary: The major scope of the presented work is the characterization and evaluation of hydrophobicity of novel copolymers of the PS‐b‐PB 1,2 type, modified with perfluorooctanoyl chloride [PS: polystyrene, PB 1,2 : poly(butadiene) with 100% 1,2‐microstructure]. Fluoro atoms in polymers can create hydrophobic surfaces with low surface energy. The fluorinated groups can migrate and possible orient in the outermost surface of the polymeric thin film. Characterization in the modified block copolymer was conducted with carbon nuclear magnetic resonance ( 13 C‐NMR) and thermogravimetric analysis (TGA) to evaluate the structure. Contact angle measurements were also conducted to verify the hydrophobicity of the fluorinated copolymer. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to depict the structure of the material. The obtained results showed that indeed the fluorinated copolymer exhibits high hydrophobicity (low surface energy material) with significant structural differences from its precursor.