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Long Chain Molecules In The Molten State: Surface Adsorption, Near Surface Structure, And Mutual-Diffusion, Xiaofeng Zhao
Long Chain Molecules In The Molten State: Surface Adsorption, Near Surface Structure, And Mutual-Diffusion, Xiaofeng Zhao
Dissertations, Theses, and Capstone Projects
The surface segregation in a binary mixture of polymer due to surface energy difference or end-grafting is studied. The surface energy difference induced segregation is compared with the mean-field theory. The end-labeling of chains strengthens the ability of the chain to bind to the surface, and the stretching of the end grafted chains is proved to be a controlling fact limiting the brush density. The structure of a chain near a surface needs to be known in order to make more quantitative analysis. Such knowledge is currently not available although a reflecting surface model is proposed.
We also studied the …