N,N-dialkyl perfluoroalkanesulfonamides: Synthesis, characterization and properties
作者:Shi-Tao Fu、Shuai-Ling Liao、Jin Nie、Zhi-Bin Zhou
DOI:10.1016/j.jfluchem.2013.01.009
日期:2013.3
Twenty derivatives of N,N-dialkyl perfluoroalkanesulfonamides, n-CmF2m + 1SO2NRR′ (m = 1, 2, 4, 6, 8; R, R′ = CH3, CH2CH3 or CH2CH2OCH3), have been prepared and characterized. Their fundamental physicochemical properties, including melting point, density, viscosity and dielectric constant, are determined. The influences of structural variations in both the perfluoroalkyl and alkyl chains on the above
二十衍生物Ñ,Ñ二烷基perfluoroalkanesulfonamides,Ñ -C米˚F 2米 + 1 SO 2 '(NRR米 ; R,R = 1,2,4,6,8'= CH 3,CH 2 CH 3或CH 2 CH 2 OCH 3),已经制备和表征。其基本的物理化学性质,包括熔点,密度,粘度和介电常数,被确定。在全氟烷基和对上述特性的烷基链既结构变化的影响进行广泛的研究。其中ñ,Ñ二烷基perfluoroalkanesulfonamides,14种化合物在室温下是液体,并且它们中的一些表现出低的熔点,甚至低于-40℃。经验溶剂极性秤这些液体perfluoroalkanesulfonamides,如“过渡的能量” ë Ť(30)值和Kamlet-塔夫脱溶剂参数(π *,α,β),也由溶剂化的测量来确定,并显示出良好的线性温度依赖。所述ë Ť(30)的值是在45.36-55.19千卡mol的