Compound film enhanced by inclusion complex of ring molecule and polymer and preparation method thereof

Abstract

The invention discloses a composite membrane reinforced by an inclusion complex of ring molecules and a polymer. The composite membrane is mainly formed by a polymer layer consisting of a linear polymer or a branch polymer and an inclusion complex layer formed by serially sleeving the ring molecules on partial chain links of the polymer which are compounded and accumulated layer by layer. The preparation of the composite membrane mainly comprises the following steps: a polymer component and a ring molecule component are dissolved into a solvent respectively to be prepared into a solution; anda substrate material is alternately immersed into the solution prepared by the polymer component and the ring molecule component, is kept stand for a period of time, and is taken out to remove excessive adhesive substances, and a multi-layer membrane system can be obtained by circulating the process. Compared with the prior art, a supermolecular multi-layer membrane greatly strengthens the mechanical property and the friction-resistant performance of the multi-layer membrane by introducing a self-assembling inclusion component of the polymer and the ring molecules, and has broad varieties of selectable polymers and broad application prospect.

Description

technical field

[0001] The invention relates to the field of layer-by-layer self-assembled supramolecular multilayer films, in particular to a supramolecular multilayer film containing polymers and cyclic molecule host-guest inclusions and a preparation method thereof. Background technique

[0002] In recent years, multilayer thin films formed by supramolecular self-assembly have attracted much attention. As a window for supramolecular science to move from the laboratory to the practical, the layer-by-layer self-assembly technology has unique advantages: (1) There is no requirement for the chemical structure and active functional groups on the surface of the material; (2) The construction process of the layered structure does not require Any external conditions, such as the provision of energy; (3) a wide range of molecules to assemble into membranes, which can be synthetic polyelectrolytes, or charged bioactive macromolecules such as proteins, polysaccharides, and DNA; (4) ...

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