Monitoring diffusion of reptating polymer chains by a direct energy transfer method: A Monte Carlo simulation
Yükleniyor...
Dosyalar
Tarih
2002-07-29
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley-Blackwell
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A kinetic Monte Carlo method was used to simulate the diffusion of reptating polymer chains across an interface. A time-resolved fluorescence technique in conjunction with a direct energy transfer method was used to measure the extent of diffusion of dye-labeled reptating polymer chains. The diffusion of donor- and acceptor-labeled polymer chains between adjacent compartments was randomly generated. The fluorescence decay profiles of donor molecules were simulated at several diffusion steps to produce mixing of the polymer chains. Mixing ratios of donor- and acceptor-labeled polymer chains in compartments were measured at various stages (snap-shots) of diffusion. It was observed that for a given molecular weight, the average interpenetration contour length was found to be proportional to the mixing ratio. Monte Carlo analysis showed that the curvilinear diffusion coefficient is inversely proportional to the weight of polymer chains during diffusion.
Açıklama
Anahtar Kelimeler
Diffusion, Energy transfer, Polymer chains, Reptation, Time-resolved fluorescence, Latex film formation, Poly(methyl methacrylate), Concentration profiles, Particle coalescence, Fluorescence, Interdiffusion, Interfaces
Kaynak
Macromolecular Theory and Simulations
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
11
Sayı
6
Künye
Tüzel, E., Kısacıkoǧlu, K. B. & Pekcan, M. Ö. (2002). Monitoring diffusion of reptating polymer chains by a direct energy transfer method: A monte carlo simulation. Macromolecular Theory and Simulations, 11(6), 678-686. doi:10.1002/1521-3919(20020801)11:6<678::AID-MATS678>3.0.CO;2-E
