Structure of a Bidisperse Polymer Brush: Monte Carlo Simulation and Self-consistent Field Results

Pik Yin Lai, E. B. Zhulina

研究成果: 雜誌貢獻期刊論文同行評審

64 引文 斯高帕斯(Scopus)

摘要

Using the bond-fluctuation model, we perform Monte Carlo simulations for polymer brushes composed of chains of two different chain lengths under good solvent condition. Profiles of monomer density and free end density, chain linear dimensions, and average monomer position along a chain are studied. Quantities measured in the simulations are derived from the analytic self-consistent field (SCF) theory and compared with the simulation data. The structural properties can be quite accurately described by the theory only when both the long and short chains are stretched. In general the predictions from the SCF theory are less satisfactory than in the monodispersed brush. The discrepancies are mainly attributed to the breakdown of the strong stretching condition of the longer chain units in the outer sublayer.

原文???core.languages.en_GB???
頁(從 - 到)5201-5207
頁數7
期刊Macromolecules
25
發行號20
DOIs
出版狀態已出版 - 1 9月 1992

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