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Synthesis and properties of novel fluoroalkyl end‐capped oligomers containing silsesquioxane segments
Author(s) -
Sawada Hideo,
Yoshioka Hiroaki,
Ohashi Ryusei,
Kawase Tokuzo
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10859
Subject(s) - silsesquioxane , materials science , polymer chemistry , thermal stability , monomer , oligomer , methyl methacrylate , methacrylate , solubility , copolymer , surface modification , chemical engineering , polymer , chemistry , organic chemistry , composite material , engineering
Fluoroalkyl end‐capped homo‐ and co‐ oligomers containing silsesquioxane segments were prepared by the reactions of fluoroalkanoyl peroxides with the corresponding methacrylate monomer‐bearing silsesquioxane unit ( Si ‐MMA) and comonomers such as N,N‐dimethylacrylamide (DMAA) and acrylic acid (ACA). These new fluorinated Si ‐MMA oligomers were easily soluble in various organic solvents and were able to reduce the surface tension of m ‐xylene effectively. The modified poly(methyl methacrylate) [PMMA] and glass surface treated with fluorinated Si ‐MMA homo‐oligomers exhibited a strong oleophobicity, although these fluorinated oligomers possess high oleophilic silsesquioxane segments. In contrast, the modified PMMA surface treated with fluorinated Si ‐MMA–DMAA cooligomers exhibited a good hydrophilicity with a strong oleophobicity. In a series of fluorinated Si ‐MMA oligomers, fluorinated Si ‐MMA homo‐oligomers had a relatively high thermal stability. Therefore, these fluoroalkyl end‐capped Si ‐MMA oligomers are suggested to have high potential for new functional materials through their unique properties such as a high solubility and surface active properties. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 3486–3493, 2002