Premium
Covalent Fluorination Strategies for the Surface Modification of Polydienes
Author(s) -
Bruycker Kevin,
Delahaye Maarten,
Cools Pieter,
Winne Johan,
Prez Filip E. Du
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700122
Subject(s) - contact angle , copolymer , materials science , styrene , polymer , moiety , surface modification , polymer chemistry , thermoplastic elastomer , acrylonitrile butadiene styrene , elastomer , thermoplastic , covalent bond , acrylonitrile , chemical engineering , organic chemistry , chemistry , composite material , engineering
Nonreactive additives are widely applied to enhance polymer properties but can leach out of the material over time. In this work, two essentially different fluorinated additives bearing a triazolinedione moiety are synthesized and grafted on several polydiene backbones (acrylonitrile–butadiene–styrene, styrene–butadiene, and styrene–isoprene–styrene (SIS) copolymers), either by dip‐coating or by reaction in solution. The resulting polymers are analyzed by contact angle goniometry, size exclusion chromatography, and NMR, infrared, and X‐ray photoelectron spectroscopy. Independent of the modification procedure, the fluorophilic perfluoroalkyl additive is found at the material surface, thereby yielding a more hydrophobic surface. For SIS thermoplastic elastomers, for example, contact angles up to 125° can be obtained.