Li, Zhongjing Chen, Chen McCaffrey, Mitchell Yang, Hui Allcock, Harry R. Polyphosphazene Elastomers with Alkoxy and Trifluoroethoxy Side Groups Elastomers based on the polyphosphazene skeletal platform are the subject of broad interest from both biomedical and technological viewpoints. Here, we describe a fourth generation of polyphosphazene elastomers with both 2,2,2-trifluoroethoxy (CF<sub>3</sub>CH<sub>2</sub>O−) and nonfluorinated alkoxy groups such as CH<sub>3</sub>CH<sub>2</sub>O–, CH<sub>3</sub>CH<sub>2</sub>­CH<sub>2</sub>O–, or CH<sub>3</sub>CH<sub>2</sub>­CH<sub>2</sub>CH<sub>2</sub>O– units. These structures provided access to elastomers with very low glass transition temperatures in the range of −60 to −90 °C. Variations in the relative percentages of the alkoxy and trifluoroethoxy side groups have a significant influence on the physical properties, which were studied by stress–strain, differential scanning calorimetry, and thermogravimetric analysis techniques. Biomedical materials focused on cardiovascular and dental applications are target applications. target applications;trifluoroethoxy side groups;polyphosphazene elastomers;glass transition temperatures;Trifluoroethoxy Side Groups Elastomers;CH;CF;Polyphosphazene Elastomers;thermogravimetric analysis techniques;Biomedical materials;scanning calorimetry;nonfluorinated alkoxy groups 2020-01-14
    https://acs.figshare.com/articles/journal_contribution/Polyphosphazene_Elastomers_with_Alkoxy_and_Trifluoroethoxy_Side_Groups/11608434
10.1021/acsapm.9b00913.s001