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Synthesis,Characterization and Properties of New Semifluorinated Poly(arylene ether phosphine oxide)s |
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| Authors: | Anindita Ghosh Debaditya Bera De‐Yi Wang Hartmut Komber Aruna Kumar Mohanty Susanta Banerjee Brigitte Voit |
| Affiliation: | 1. Leibniz‐Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany;2. Current address: Dow Chemical International Pvt. Ltd. R&D Center, Pune – Chemical and Polymer Synthesis (CPS) Sai Hira, Survey No. 30, Mundhwa, Pune, 411 036, India;3. Materials Science Centre, Indian Institute of Technology, Kharagpur, 721302, India;4. College of Chemistry, Sichuan University, Chengdu 610064, China |
| Abstract: | Bis(4‐fluoro‐3‐trifluoromethylphenyl)phenylphosphine oxide is synthesized and six new poly(arylene ether)s are prepared by nucleophilic displacement of the fluorine atom on the benzene ring by several diphenols under basic conditions. The products show very high glass transition temperatures of up to 252 °C and very good thermal stabilities of up to 490 °C for 5% weight loss. The polymers display very low heat release rates in the microscale combustion calorimeter test, suggesting good flame retardance. All polymers are soluble in a wide range of organic solvents. Transparent thin films cast from dichloromethane exhibit tensile strengths up to 54 MPa, a modulus of elasticity up to 0.97 GPa and elongation at break up to 47% depending on their exact repeating unit structures.  |
| Keywords: | flame retardance mechanical properties phosphorus‐containing polymers poly(arylene ether)s thermal properties |