[article]
| Titre : |
Fluorinated polysiloxanes : a basis for low surface energy materials |
| Type de document : |
texte imprimé |
| Auteurs : |
Sylvie Boileau, Auteur ; Emmanuel Beyon, Auteur ; Pierre Babin, Auteur ; Bernard Benneteau, Auteur ; Jacques Dunguès, Auteur ; Dominique Peyssié, Auteur |
| Année de publication : |
1996 |
| Article en page(s) : |
p. 508-511 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Tags : |
Polysiloxane Fluoropolymère 'Energie surface' 'Propriété |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Hydrosilylation of unsaturated perfluoroalkyl esters derived from undecylenic acid: CH2=CH-(CH2)8-COO-CH2-CH2-RF (with RF=C6F13, C8F17) and C8F17-(CH2)10-COO-CH2-CH 2-CH=CH2 by methylhydrodimethylsiloxane copolymers of various SiH contents gives new fluorinated polysiloxanes which were examined by NMR, SEC, DSC and optical polarizing microscopy. The critical surface tension,γc, and the solid surface tensions, γDS, were deduced from n-alkane and water contact angle data. They decrease as the perfluoroalkyl graft content of the copolymers increases. Some of them which are in the range of the lowest surface tension of fluoropolymers known, are observed when the fluorinated segments are self-organized at the interface, i.e. when the polymers are mesomorphous or crystalline at room temperature. Comparative data with [RF(CH2)10MeSiO]n homopolymer and self- assembled RF(CH2)2OCO(CH2)10SiO3/2 monolayers are presented. |
| Note de contenu : |
- Preparation of fluorinated polysiloxanes
- Thermal properties
- Surface tension properties
|
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11302 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 7-8/96 (07-08/1996) . - p. 508-511
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