Synthesis and Characterization of Fluorinated Poly (imide siloxane) Copolymers Containing Anthracene Moieties in the Main Chain
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Five new co-poly(imide siloxane)s have been prepared by reacting two diamine monomers 9, 10-bis [3'-trifluoromethyl-4' (4 ''-aminobenzoxy)benzyl]anthracene (TFAA) and amino-propyl terminated polydimethylsiloxane (APPS) together with different commercially available dianhydrides like benzene-1,2,4,5-tetracarboxylic dianhydride (PMDA), 4,4'-(hexafluoro-isopropylidene)diphthalic anhydride (6FDA), 4,4'-oxydiphthalic anhydride (ODPA), 4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride) (BPADA) and benzophenone-3,3',4,4'-tetracarboxylic dianhydride (BTDA). In each case the siloxane loading was adjusted to about 40 wt.% in the respective copolymers. The polymers were either synthesized by the one-pot solution imidization method or by the thermal imidization route. The synthesized polymers show predominantly good solubility in different organic solvents. The resulting polymers have been characterized by gel permeation chromatography, infrared and nuclear magnetic resonance techniques. These polyimides show good thermal stability with decomposition temperature (5% weight loss) up to 463 degrees C in nitrogen. Transparent thin films of these polyimides exhibit tensile strengths up to 31 MPa, a modulus of elasticity up to 0.63 GPa and elongation at break up to 110%.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 28-41 |
Seitenumfang | 14 |
Fachzeitschrift | High Performance Polymers |
Jahrgang | 22 |
Ausgabenummer | 1 |
Publikationsstatus | Veröffentlicht - Feb. 2010 |
Peer-Review-Status | Ja |
Extern publiziert | Ja |
Externe IDs
Scopus | 77649264811 |
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ORCID | /0000-0002-4531-691X/work/148607804 |
Schlagworte
Schlagwörter
- Fluorinated polyimides, Dielectric constant, Mechanical properties, Poly(imide siloxane)s, Thermal properties