中文摘要：

采用反气相色谱法（IGC），于333．15-373．15K温度范围内测定了有机溶剂型木质素的溶解度参数（82，）及相关指标，、以正辛烷（n-C8）、正癸烷（n-C10）、正二烷十（n一C12）和正十四四烷（n-C14）为探针溶剂，计算了探针溶剂的特性保留体积（V^0g）、摩尔吸收焓（ΔH^s1）、无限稀释摩尔混合焓（ΔH^∞1）、摩尔蒸发焓（ΔHv）、无限稀释活度系数（Ω^∞1）以及探针溶剂与有机溶剂型木质素的Flory-Huggins相互作用参数（x∞12）．．结果表明，上述4种探针溶剂在测定的温度范围内均为有机溶剂型木质素的不良溶液；在同一温度下，参数x∞12随着探针溶剂碳数的增加而降低，测得的以机溶剂型木质素的为19．03（J·Cm-3）1/2

英文摘要：

An inverse gas chromatographic （IGC） method has been used to measure the solubility parameters of organosolv lignin at the absolute temperatures from 333. 15 K to 373. i5 K. The test probe solvents were n-octane （n-C8）, n-decane （n-C10））, n-dodecane （n-C12）, azxd n- tetradecane （ n-C14）. The specific retention volumes of the solvents （ ΔH0g ）, the molar enthalpy of sorption （ΔHs1）, the partial molar enthalpy of mixing at infinite dilution （ΔH∞）, the molar enthalpy of vaporization （ AH,. ）, the activity coefficients at infinite dilution （ Ω^∞1）, and FloryHuggins inter action parameters （X∞2） between organosolv lignin and probe solvents were obtained. The results showed that the above four probes are poor solvents for organosolv lignin; at the same temperature, the X∞12reduced with the increase of the carbon number of probe solvents. The average solubility parameter of organosolv lignin was determined as 19.03 （J·Cm-3）1/2