Cloud points for binary system of carbon dioxide (CO2) + poly(heptadecafluorodecyl acrylate) (poly(HDFDA)) were measured using a variable volume view cell with polymer concentration up to 10 wt % and at temperature from (303 to 363) K and pressure up to about 30 MPa. Typical lower critical solution temperature phase behavior is observed with a critical concentration between (7.0 and 8.0) wt % poly(HDFDA). In addition, cloud point and bubble point pressures for the ternary system of CO2 + HDFDA + poly(HDFDA) were measured at temperature from (303 to 363) K and pressure up to about 30 MPa. As the weight fraction of HDFDA increased, cloud point pressure dramatically decreased and liquid-liquid-vapor transition was observed at 30.0 wt % monomer.