A reevaluation of forces measured across thin polymer films : nonequillibrium and pinning effects Horn, R. G., Hirz, S. J., Hadziioannou, G., Frank, C. W. and Catala, J. M. 1989, A reevaluation of forces measured across thin polymer films : nonequillibrium and pinning effects, Journal of Chemical Physics, vol. 90, no. 11, pp. 6767-6774. Attached Files Name Description MIMEType Size Downloads horn-reevaluationofforces-1989.pdf Published version application/pdf 730.90KB 92 Title A reevaluation of forces measured across thin polymer films : nonequillibrium and pinning effects Author(s) Horn, R. G. Hirz, S. J. Hadziioannou, G. Frank, C. W. Catala, J. M. Journal name Journal of Chemical Physics Volume number 90 Issue number 11 Start page 6767 End page 6774 Total pages 8 Publisher American Institute of Physics Place of publication New York, N. J. Publication date 1989 ISSN 0021-9606 1089-7690 Keyword(s) force & energy polymers thin films Summary We have measured forces between molecularly smooth solid surfaces separated by thin films of molten polydimethylsiloxane. We show that a long-range repulsion reported in earlier work is not an equilibrium force, but can be attributed to viscous drag effects. Consistent with previous results, the viscosity of the film can be modeled by assuming that a layer of polymer molecules is immobilized or ‘‘pinned’’ at each surface for a time longer than the time scale of the measurements. We propose that this pinning is a result of entanglement-like effects in the vicinity of a wall. Notes Reproduced with the kind permission of the copyright owner. Language eng Field of Research 029999 Physical Sciences not elsewhere classified Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences HERDC Research category C1.1 Refereed article in a scholarly journal Copyright notice ©1989, American Institute of Physics Free to Read? Yes Persistent URL http://hdl.handle.net/10536/DRO/DU:30041460 Document type: Journal Article Collections: Centre for Material and Fibre Innovation Institute for Technology Research and Innovation Office of the Deputy Vice-Chancellor (Research) Open Access Collection GTP Research Related Links Link Description Connect to published version (restricted access) Go to link with your DU access privileges     Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au. Versions Version Filter Type Fri, 13 Jan 2012, 10:12:38 EST Fri, 15 Jun 2012, 11:28:53 EST Fri, 15 Jun 2012, 11:31:07 EST Tue, 19 Jun 2012, 10:53:25 EST Tue, 06 Sep 2016, 18:06:34 EST Tue, 05 Dec 2017, 12:28:09 EST Fri, 07 Sep 2018, 15:41:10 EST Filtered Full Citation counts:   Cited 111 times in TR Web of Science Cited 108 times in Scopus Search Google Scholar Access Statistics: 298 Abstract Views, 92 File Downloads  -  Detailed Statistics Created: Fri, 13 Jan 2012, 10:12:38 EST