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采用反气相色谱法(IGC),于333.15 ~373.15 K温度范围内测定了有机溶剂型木质素的溶解度参数(δ2)及相关指标.以正辛烷(n-C8)、正癸烷(n-C10)、正十二烷(n-C12)和正十四烷(n-C14)为探针溶剂,计算了探针溶剂的特性保留体积(V0g)、摩尔吸收焓(△H31)、无限稀释摩尔混合焓(△H∞1)、摩尔蒸发焓(△Hv)、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.测得的有机溶剂型木质素的δ2为19.03 (J· cm-3)1/2.

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