Rate constants at 253-328 K for reactions of OH radicals with (CF3)(2)CHOCH3 (k6), (CF3)(2)CHOCH2CH3 (k7), and (CF3)(2)CHOCH2CH2CH3 (k8) were studied using a relative rate method. Data on k6, k7, and k8 (2.13 x 10(-13), 1.07 x 10(-12), and 1.92 x 10(-12) cm(3) molecule(-1) s(-1), respectively) were obtained at 298 K. The corresponding radiative efficiencies (0.103, 0.034, and 0.021 W m(-2) ppb(-1)) were calculated from infrared absorption spectra measured at room temperature. Global warming potential (GWP(100)) was estimated to be 5, < 1, and < 1, respectively, and the photochemical ozone creation potential in all cases was < 10.