کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5359768 1503705 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecular dynamics simulation of the interface between self-assembled monolayers on Au(1 1 1) surface and epoxy resin
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Molecular dynamics simulation of the interface between self-assembled monolayers on Au(1 1 1) surface and epoxy resin
چکیده انگلیسی
Two kinds of functionalized self-assembled alkanethiol monolayers (HS(CH2)nOH and HS(CH2)nNH2, n = 1-17) were prepared on the Au(1 1 1) surface. The interface structures and interaction energies between S(CH2)nX/Au(1 1 1) (X = OH, NH2) and epoxy resin were studied by molecular dynamics methods. Moreover, the influence of chain lengths and end functional groups of thiols on the interfacial properties was also investigated. The results indicate that for the system of S(CH2)nOH/Au(1 1 1) and epoxy, the interface energy increases firstly and then decreases gradually with the increase of chain length, and the energy reaches its minimum value when n = 11. Meanwhile, the interface of the S(CH2)nNH2/Au(1 1 1) and epoxy system is the most stable when n = 10. These results were compared with experiments, which prove that the simulation methods in this paper are advisable. The changes of structural parameters of the self-assembled monolayers (SAMs) after interacting with the epoxy indicate that there are strong interactions between the SAMs and epoxy resin. And the interface structures of the S(CH2)nNH2 and epoxy systems are more stable than those of the S(CH2)nOH and epoxy ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issues 13–14, 15 April 2009, Pages 6451-6459
نویسندگان
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