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Title: Substrate effect on the melting temperature of thin polyethylenefilms

Abstract

Strong dependence of the crystal orientation, morphology,and melting temperature (Tm) on the substrate is observed in thesemicrystalline polyethylene thin films. The Tm decreases with the filmthickness when the film is thinner that a certain critical thickness andthe magnitude of the depression increases with increasing surfaceinteraction. We attribute the large Tm depression to the decrease in theoverall free energy on melting, which is caused by the substrateattraction force to the chains that competes against the interchain forcewhich drives the chains to crystallization.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
COLLABORATION - StonyBrook/NY
OSTI Identifier:
907910
Report Number(s):
LBNL-61015
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: A58130; BnR: KC0204016; TRN: US0703345
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 96; Related Information: Journal Publication Date: 01/20/2006
Country of Publication:
United States
Language:
English
Subject:
37; 75; CRYSTALLIZATION; FREE ENERGY; MELTING; MORPHOLOGY; ORIENTATION; POLYETHYLENES; SUBSTRATES; THICKNESS; THIN FILMS; Polymers Surfaces Adhesion solid-Liquid transitionPolyethylene

Citation Formats

Wang, Y., Rafailovich, M., Sokolov, J., Gersappe, D., Araki, T., Zou, Y., Kilcoyne, A.D.L., Ade, H., Marom, G., and Lustiger, A.. Substrate effect on the melting temperature of thin polyethylenefilms. United States: N. p., 2006. Web. doi:10.1103/PhysRevLett.96.028303.
Wang, Y., Rafailovich, M., Sokolov, J., Gersappe, D., Araki, T., Zou, Y., Kilcoyne, A.D.L., Ade, H., Marom, G., & Lustiger, A.. Substrate effect on the melting temperature of thin polyethylenefilms. United States. doi:10.1103/PhysRevLett.96.028303.
Wang, Y., Rafailovich, M., Sokolov, J., Gersappe, D., Araki, T., Zou, Y., Kilcoyne, A.D.L., Ade, H., Marom, G., and Lustiger, A.. Tue . "Substrate effect on the melting temperature of thin polyethylenefilms". United States. doi:10.1103/PhysRevLett.96.028303.
@article{osti_907910,
title = {Substrate effect on the melting temperature of thin polyethylenefilms},
author = {Wang, Y. and Rafailovich, M. and Sokolov, J. and Gersappe, D. and Araki, T. and Zou, Y. and Kilcoyne, A.D.L. and Ade, H. and Marom, G. and Lustiger, A.},
abstractNote = {Strong dependence of the crystal orientation, morphology,and melting temperature (Tm) on the substrate is observed in thesemicrystalline polyethylene thin films. The Tm decreases with the filmthickness when the film is thinner that a certain critical thickness andthe magnitude of the depression increases with increasing surfaceinteraction. We attribute the large Tm depression to the decrease in theoverall free energy on melting, which is caused by the substrateattraction force to the chains that competes against the interchain forcewhich drives the chains to crystallization.},
doi = {10.1103/PhysRevLett.96.028303},
journal = {Physical Review Letters},
number = ,
volume = 96,
place = {United States},
year = {Tue Jan 17 00:00:00 EST 2006},
month = {Tue Jan 17 00:00:00 EST 2006}
}