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L-B膜是一种单分子膜,它是将羧基亲水性基团作为头,烷基链等长的疏水性基团作为尾的分子,在水面上以单分子层展开,在分子间彼此相互作用下,使之进行二维有规律排列之后,移到固体基片上而形成的膜。早在古代渔民和水手们就已意识到水面上形成的油能减少水浪。对L-B膜进行系统地物理、化学的研究是1917年Langmuir采用膜天平才开始的。他测量了分子大小、形状和取向、膜的表面积以及张力等,并且成功地将液面上的单分子膜转移到固体表面上。本世纪60年代,库恩(H.Kuhn)对L-B膜开展了比较细致、全面、深入的研究工作,研究的
LB film is a monomolecular film, which is a hydrophilic carboxyl group as a head, alkyl chain length of the hydrophobic group as the tail of the molecule, the water surface to develop as a monolayer, intermolecular mutual mutual Under the action of making it two-dimensional regular arrangement, the film is formed on the solid substrate. As early as ancient fishermen and sailors had realized that the water formed on the water to reduce water waves. Systematic physical and chemical studies of L-B films started with the 1917 Langmuir film balance. He measured the size, shape and orientation of molecules, the surface area and tension of the membrane, and so on, and successfully transferred the monolayer on the liquid surface to a solid surface. In the 60s of this century, H. Kuhn carried out a more detailed, comprehensive and in-depth study on the L-B film,