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Fluoroalkylation of poly(cyclopentadienyl)siloxane and the surface properties of poly(fluorocyclopentenyl)siloxane films
- Source :
- Phosphorus, Sulfur, and Silicon and the Related Elements. 191:1204-1208
- Publication Year :
- 2016
- Publisher :
- Informa UK Limited, 2016.
-
Abstract
- In this work, poly(fluorocyclopentenyl)siloxane (FPCS) was obtained via a single electron transfer addition reaction of poly(cyclopentadienyl)siloxane (PCS) and perfluoroalkyl iodides, and reduction reaction of the intermediates. PCS was prepared by substitution and hydrolysis reactions using methyltrichlorosilane and sodium cyclopentadienylide (NaCp) as raw materials. FT-IR, 1H NMR and 19F NMR indicated the structures of the target polymers. The XPS results showed that the thin films prepared by dip-coating were fluorine enriched at the surface. Atomic force microscopy (AFM) image showed that on the rough surface of films, there were many pinnacles which were generated through the migrating of side chain fluoroalkyl groups. The relative static contact angles of water and n-hexadecane on FPCS and PCS indicated that sodium dithionite initiated the reaction of perfluoroalkyl iodides and PCS so that FPCS was successfully synthesized. The measured surface energy of PCS was 2.57ċ10−2N/m; while FPCS was...
- Subjects :
- 010405 organic chemistry
Organic Chemistry
Fluorine-19 NMR
010402 general chemistry
01 natural sciences
Biochemistry
Surface energy
0104 chemical sciences
Methyltrichlorosilane
Inorganic Chemistry
Contact angle
Sodium dithionite
chemistry.chemical_compound
chemistry
Cyclopentadienyl complex
Siloxane
Polymer chemistry
Side chain
Subjects
Details
- ISSN :
- 15635325 and 10426507
- Volume :
- 191
- Database :
- OpenAIRE
- Journal :
- Phosphorus, Sulfur, and Silicon and the Related Elements
- Accession number :
- edsair.doi...........099f8ef6a8bac0e48b2d96e4ebb1b1fd