Matches in SemOpenAlex for { <https://semopenalex.org/work/W2012165245> ?p ?o ?g. }
- W2012165245 endingPage "453" @default.
- W2012165245 startingPage "437" @default.
- W2012165245 abstract "Results from a molecular dynamics simulation of a melt of unentangled polymers are presented. The translational motion, the large-scale and the local reorientation processes of the chains, as well as their relations with the so-called normal and segmental dielectric relaxation modes are thoroughly investigated in wide temperature and pressure ranges. The thermodynamic states are well fitted by the phenomenological Tait equation of state. A global time-temperature-pressure superposition principle of both the translational and the rotational dynamics is evidenced. The scaling is more robust than the usual Rouse model. The latter provides insight but accurate comparison with the simulation calls for modifications to account for both the local chain stiffness and the nonexponential relaxation. The study addresses the issue whether the temperature or the density is a dominant control parameter of the dynamics or the two quantities give rise to comparable effects. By examining the ratio /alphatau//alphaP between the isochronic and isobaric expansivities, one finds that the temperature is dominant when the dynamics is fast. If the relaxation slows down, the fluctuations of the free volume increase their role and become comparable to those of the thermal energy. Detectable cross-correlation between the normal-mode and the segmental dielectric relaxations is found and contrasted with the usual assumption of independent modes." @default.
- W2012165245 created "2016-06-24" @default.
- W2012165245 creator A5053303987 @default.
- W2012165245 creator A5076908010 @default.
- W2012165245 creator A5079507149 @default.
- W2012165245 creator A5088890660 @default.
- W2012165245 date "2004-01-01" @default.
- W2012165245 modified "2023-09-25" @default.
- W2012165245 title "Molecular dynamics study of the thermal and the density effects on the local and the large-scale motion of polymer melts: Scaling properties and dielectric relaxation" @default.
- W2012165245 cites W1611980564 @default.
- W2012165245 cites W1964251989 @default.
- W2012165245 cites W1964925692 @default.
- W2012165245 cites W1965094412 @default.
- W2012165245 cites W1967120320 @default.
- W2012165245 cites W1967303178 @default.
- W2012165245 cites W1967451421 @default.
- W2012165245 cites W1968204896 @default.
- W2012165245 cites W1968704660 @default.
- W2012165245 cites W1971301815 @default.
- W2012165245 cites W1972227767 @default.
- W2012165245 cites W1973874286 @default.
- W2012165245 cites W1976227579 @default.
- W2012165245 cites W1976452055 @default.
- W2012165245 cites W1977999867 @default.
- W2012165245 cites W1980017626 @default.
- W2012165245 cites W1980832576 @default.
- W2012165245 cites W1981576891 @default.
- W2012165245 cites W1984899518 @default.
- W2012165245 cites W1986928937 @default.
- W2012165245 cites W1987120628 @default.
- W2012165245 cites W1988460807 @default.
- W2012165245 cites W1990764465 @default.
- W2012165245 cites W1993248316 @default.
- W2012165245 cites W1995062017 @default.
- W2012165245 cites W1995697029 @default.
- W2012165245 cites W1996016803 @default.
- W2012165245 cites W1997676547 @default.
- W2012165245 cites W2000318098 @default.
- W2012165245 cites W2001070715 @default.
- W2012165245 cites W2002773786 @default.
- W2012165245 cites W2004369921 @default.
- W2012165245 cites W2005241888 @default.
- W2012165245 cites W2007645894 @default.
- W2012165245 cites W2008770057 @default.
- W2012165245 cites W2010881322 @default.
- W2012165245 cites W2012429852 @default.
- W2012165245 cites W2012682730 @default.
- W2012165245 cites W2012829816 @default.
- W2012165245 cites W2019149991 @default.
- W2012165245 cites W2023360366 @default.
- W2012165245 cites W2023533064 @default.
- W2012165245 cites W2025477168 @default.
- W2012165245 cites W2025778723 @default.
- W2012165245 cites W2026129950 @default.
- W2012165245 cites W2029759216 @default.
- W2012165245 cites W2029966765 @default.
- W2012165245 cites W2032747110 @default.
- W2012165245 cites W2034410526 @default.
- W2012165245 cites W2035949497 @default.
- W2012165245 cites W2037339664 @default.
- W2012165245 cites W2037781509 @default.
- W2012165245 cites W2038528891 @default.
- W2012165245 cites W2038998854 @default.
- W2012165245 cites W2041934284 @default.
- W2012165245 cites W2042511126 @default.
- W2012165245 cites W2043738698 @default.
- W2012165245 cites W2045646743 @default.
- W2012165245 cites W2046089712 @default.
- W2012165245 cites W2048421180 @default.
- W2012165245 cites W2050424346 @default.
- W2012165245 cites W2050945279 @default.
- W2012165245 cites W2051461915 @default.
- W2012165245 cites W2053830504 @default.
- W2012165245 cites W2054122095 @default.
- W2012165245 cites W2054303528 @default.
- W2012165245 cites W2055543300 @default.
- W2012165245 cites W2058614389 @default.
- W2012165245 cites W2062528527 @default.
- W2012165245 cites W2064028065 @default.
- W2012165245 cites W2065781004 @default.
- W2012165245 cites W2067359971 @default.
- W2012165245 cites W2069364236 @default.
- W2012165245 cites W2070840130 @default.
- W2012165245 cites W2072927521 @default.
- W2012165245 cites W2076047144 @default.
- W2012165245 cites W2077023690 @default.
- W2012165245 cites W2078630791 @default.
- W2012165245 cites W2078669743 @default.
- W2012165245 cites W2081225641 @default.
- W2012165245 cites W2081500565 @default.
- W2012165245 cites W2082497266 @default.
- W2012165245 cites W2082509278 @default.
- W2012165245 cites W2086920996 @default.
- W2012165245 cites W2087917262 @default.
- W2012165245 cites W2089102389 @default.
- W2012165245 cites W2091570098 @default.
- W2012165245 cites W2092621934 @default.
- W2012165245 cites W2110723170 @default.