871504-56-2

Upstream product

• 871504-55-1 C₇O₃F₁₂ 
• 2062-98-8 perfluoro(2-propoxypropionyl) fluoride 

Relevant academic research and scientific papers

Synthesis and polymerization of a novel perfluorinated monomer

Perfluoro(5-methylene-2,2-dimethyl-1,3-dioxolane) (1) was synthesized by utilizing a direct fluorination reaction. Compound 1 was an entirely novel monomer with difluoromethylene at position 5 on the dioxolane ring as an unprecedented polymerization site. It successfully polymerized with tetrafluoroethylene to afford copolymers, which had Tg values in the range of 60-90 °C. The content of monomer 1 in the obtained polymers was less than 20 mol%, which seemed insufficient for giving various unique properties to polymers. However, each polymer was expected to be a superior material because of their advanced thermal stability. Comparison with copolymers of 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole and tetrafluoroethylene is also discussed.

COMPOUND HAVING PERFLUORO(4-METHYLENE-1,3-DIOXOLANE) STRUCTURE AND NOVEL POLYMER

Disclosed are a compound having a perfluoro(4-methylene-1,3-dioxolane) structure which has not been known yet, and a novel polymer. Specifically disclosed are a compound represented by the formula (a) below which has a perfluoro(4-methylene-1,3-dioxolane) structure, a method for producing such a compound, a novel compound useful for producing such a compound, and a novel polymer containing a repeating unit represented by the formula (A) below. (In the formulae, RF1-RF4 independently represent a fluorine atom, a chlorine atom or a monovalent perfluorinated saturated organic group having 1-20 carbon atoms.)