Abstract
Two sets of styrene-based semifluorinated block copolymers, one with a perfluoroether pendant group and another with a perfluoroalkyl group, were synthesized by atom transfer radical polymerization. Microphase separation of the block copolymers was established by small-angle X-ray scattering and differential scanning calorimetry (DSC). DSC measurements also showed that the perfluoroether-based polymer had a low glass-transition temperature (-44°C). Contact-angle measurements indicated that the semifluorinated block copolymers had low surface energies (ca. 13 mJ/m2). These materials hold promise as low-surface-energy additives or surfactants for supercritical CO2 applications.
Original language | English (US) |
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Pages (from-to) | 853-861 |
Number of pages | 9 |
Journal | Journal of Polymer Science, Part A: Polymer Chemistry |
Volume | 42 |
Issue number | 4 |
DOIs | |
State | Published - Feb 15 2004 |
Keywords
- Atom transfer radical polymerization (ATRP)
- Block copolymers
- Polystyrene
- Self-assembly
- Semifluorinated