Polydifluoroacetylene, method for producing polydifluoroacetylene, precursor polymer, molded article and powder
A polydifluoroacetylene containing a C═C bond and a C—F bond, the polydifluoroacetylene having a solubility of 0.2 g/10 g or less in dimethylformamide (DMF) at 25° C. Also disclosed is a method for producing the polydifluoroacetylene, a precursor polymer for providing the polydifluoroacetylene, a molded article including the polydifluoroacetylene and a polydifluoroacetylene powder.
1. A polydifluoroacetylene comprising a C═C bond and a C—F bond,
the polydifluoroacetylene having a soluble amount of 0.2 g/10 g or less in dimethylformamide (DMF) at 25° C. and a degree of fluorination of 0.95 or higher as determined by ATR analysis.
2. The polydifluoroacetylene according to claim 1 ,
wherein the polydifluoroacetylene has a decomposition percentage of 1.0% or lower by 2-hour heating at 100° C. in an air atmosphere.
3. A molded article comprising the polydifluoroacetylene according to claim 1 .
4. A powder comprising the polydifluoroacetylene according to claim 1 .
5. The polydifluoroacetylene according to claim 1 , wherein the polydifluoroacetylene has a weight average molecular weight of 50000 to 1000000.
6. The polydifluoroacetylene according to claim 1 , wherein the polydifluoroacetylene has a weight average molecular weight of 70000 to 800000.
7. The polydifluoroacetylene according to claim 1 , wherein the polydifluoroacetylene has a weight average molecular weight of 100000 to 600000.