高分子多链在吸引表面上的吸附特性

The Adsorption Characteristic of Multi-chain with Macromolecule on Adsorption Surface

通过Monte Carlo模拟方法,研究了高分子多链在溶液中与具有吸引能力的表面的吸附特性、构象性质以及高分子多链在表面吸附过程中的动态性质.其中高分子多链在不同的表面覆盖率的情况下,主要表现为有限链长时,随着表面覆盖率的增加,临界吸附点降低,并且高分子链的均方半径减小.高分子多链的动态吸附性质表现为随着表面覆盖率的增加,它们的弛豫时间相同.高分子多链的动态构象性质表现为随着表面覆盖率的增加,高分子多链的构象变小.

The surface asoption in the liquor and in the surface with attraction power, the configurationdependent property and the dynamic nature of macromolecule multi-chains in the course of the surface adsorption, by means of Monte Carlo simulation. In the case of polymer chains with different surface coverages, the main performance is limited chain length. With the increase of surface coverages, the critical adsorption point decreases and the corresponding conformation mean square radius of giration decreases. The dynamic adsorption properties of macromolecular multi-chains show that their relaxation time is the same with the increase of surface coverages and the dynamic conformational properties of multi-chains of macromolecules show that the dynamic conformation of multi-chains of macromolecules becomes smaller as the surface coverage increases.