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  • 學位論文

結合全原子與粗粒化分子動力學模擬聚芴-聚乙烯吡啶雙嵌段共聚合物在稀薄溶液下之分子鏈行為

Simulation of PF-b-P2VP Diblock Copolymer in Dilute Solution through Combined Methods with All Atom Molecular Dynamics and Coarse Grained Molecular Dynamics.

指導教授 : 黃慶怡
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摘要


本研究利用波茲曼轉換從全原子分子動力學模擬所得到的徑向分佈函數以及鍵長、鍵角、兩面角機率分佈函數,用以比對全原子分子動力學模擬與粗粒化分子動力學模擬的橋接程度。透過適當的能量函數選擇以及參數設定,建立能夠表達全原子分子動力學模擬的粗粒化分子動力學模擬系統。最後再透過形貌圖、徑向分佈函數以及環動半徑值的比較,來確認全原子分子動力學模擬與粗粒化分子動力學模擬有一致的結果。

關鍵字

全原子 粗粒化 波茲曼反轉 模擬 乙烯吡啶

並列摘要


Through comparison of RDF, bond length distribution, angle distribution, and dihedral angle distribution between all atom molecular dynamics and coarse grained molecular dynamics to realize the mapping result. Construct coarse grained molecular dynamics cable of describing the behavior atoms act in all atom molecular dynamics by choosing proper energy functions and parameters. Analyze the radius of gyration of polymer chain, RDF, and appearance of simulation result make sure that the two methods are in accordance with each other.

並列關鍵字

all-atom coarse-grain Boltzmann inversion MD fluorene pyridine

參考文獻


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