Polymerization of [2,5-bis(trifluoromethyl)phenyl]acetylene and polymer properties

✍ Scribed by Kenji Tsuchihara; Toshio Masuda; Toshinobu Higashimura; Masakazu Nishida; Hiroshige Maramatsu

• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 267 KB
• Volume: 23
• Category: Article
• ISSN: 0170-0839
• DOI: 10.1007/bf00419969

✦ Synopsis

2,5-Bis(trifluoromethyl)phenyl]acetylene [BTFPA; HCzCC6H3-2,5-(CF3)2] polymerized with W, Mo, and Nb catalysts to produce methanolinsoluble polymers in high yields. The poly(BTFPA) produced by the W(CO)6-based catalyst at 30 ~ was soluble in I-(CF3)2C6H4, and had relatively high molecular weight ([q] = 0.352 dL/g in I-(CF3)2C6H4).

The main chain of the polymer was composed of alternating double bonds, and the polymer was a dark brown solid. The temperature at which the weight loss of the polymer started was higher than 300 ~

The polymerization behavior and polymer properties for BTFPA are compared with those for phenylacetylene and [!-(trifluoromethyl)phenyl]acetylene.