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Volumn 61, Issue 2, 2000, Pages 1800-1811

Molecular mobility in polymer thin films

Author keywords

[No Author keywords available]

Indexed keywords

DIFFUSION; FILM THICKNESS; GLASS TRANSITION; PHOTOBLEACHING; PROBES; QUARTZ; SURFACE SEGREGATION; TEMPERATURE DISTRIBUTION; THERMAL EXPANSION; THIN FILMS;

EID: 0001706631     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.61.1800     Document Type: Article
Times cited : (78)

References (52)
  • 6
    • 0029908897 scopus 로고    scopus 로고
    • P. Calvert, Nature 384, 311 (1996).
    • (1996) Nature , vol.384 , pp. 311
    • Calvert, P.1
  • 30
    • 85036266911 scopus 로고    scopus 로고
    • It should be noted that all the simulations referenced are for chains below the entanglement threshold. No computer simulations to date have been able to examine interfacial dynamics above the entanglement molecular weight
    • It should be noted that all the simulations referenced are for chains below the entanglement threshold. No computer simulations to date have been able to examine interfacial dynamics above the entanglement molecular weight.
  • 33
    • 84966503230 scopus 로고
    • edited by M. Abramowitz and I. A. Stegun, U.S. Department of Commerce, National Bureau of Standards, Washington, DC
    • Handbook of Mathematical Functions, edited by M. Abramowitz and I. A. Stegun (U.S. Department of Commerce, National Bureau of Standards, Washington, DC, 1970).
    • (1970) Handbook of Mathematical Functions
  • 49
    • 0003542713 scopus 로고
    • edited by J. Crank and G. S. Park, Academic, London
    • H. Fujita, in Diffusion in Polymers, edited by J. Crank and G. S. Park (Academic, London, 1968).
    • (1968) Diffusion in Polymers
    • Fujita, H.1
  • 51
    • 85036406961 scopus 로고    scopus 로고
    • Although the minimum in (Formula presented) and the leveling of (Formula presented) with l (Fig. 77) were not seen in direct measurements by DeMaggio et al. 16 and Forrest et al. 1718, both can be rationalized by the free surface and melt-solid interfaces exerting different influences on the average value of D in thin supported films. The prior work established that a free surface tends to suppress both (Formula presented) and (Formula presented) while an interactive solid surface does the opposite, hence the free surface should tend to enhance D while the solid should tend to suppress it. If the two surfaces have unequal, opposing influences, non-monotonic trends in the (Formula presented) and (Formula presented) calculated from D could result
    • Although the minimum in (Formula presented) and the leveling of (Formula presented) with l (Fig. 77) were not seen in direct measurements by DeMaggio et al. 16 and Forrest et al. 1718, both can be rationalized by the free surface and melt-solid interfaces exerting different influences on the average value of D in thin supported films. The prior work established that a free surface tends to suppress both (Formula presented) and (Formula presented) while an interactive solid surface does the opposite, hence the free surface should tend to enhance D while the solid should tend to suppress it. If the two surfaces have unequal, opposing influences, non-monotonic trends in the (Formula presented) and (Formula presented) calculated from D could result.


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