花生酸与铈β-二酮络合物混合单分子膜的成膜特性

来源 :化学物理学报 | 被引量 : 0次 | 上传用户:chenjung00
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将铈 β 二酮络合物 (Ce(tmhd) 4)的氯仿溶液与花生酸 (AA)的氯仿溶液以不同摩尔比混合并铺展在纯水亚相上 ,得到其与AA的混合单分子膜 .对混合单分子膜的成膜特性 (π A等温线和体系超额自由能 )进行了探讨 ,发现混合单分子膜的超额自由能为负值 ,混合过程为热力学自发过程 ,且在配比为 1∶2时其绝对值最大 ,体系最稳定 ,并进一步讨论了混合单分子膜可能的凝聚态结构 .在配比为 1∶2时 ,研究了混合单分子膜的静态弹性和动态弹性 The chloroform solution of cerium beta diketonate (Ce (tmhd) 4) was mixed with a chloroform solution of arachidic acid (AA) in various molar ratios and spread on a pure water subphase to obtain a mixed monomolecular film with AA The film forming properties (π A isotherm and system excess free energy) of the mixed monolayer were investigated and it was found that the excess free energy of the mixed monolayer was negative. The mixing process was a thermodynamic spontaneous process, 1: 2, the largest absolute value, the most stable system, and further discuss the possible condensed state of the mixed monolayers.When the ratio is 1: 2, the static elasticity and dynamic elasticity of the mixed monolayer
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