Article

Polymer dynamics in hydrogenous systems by neutron reflectivity

  1. A. R. Esker1,*,
  2. H. Grüll2,*,
  3. S. K. Satija3,
  4. C. C. Han4

Article first published online: 28 JUL 2004

DOI: 10.1002/polb.20176

Issue

Journal of Polymer Science Part B: Polymer Physics

Journal of Polymer Science Part B: Polymer Physics

Special Issue: Special Issue on Recent Developments in Polymer Science as Determined by Neutron Scattering

Volume 42, Issue 17, pages 3248–3257, 1 September 2004

Additional Information

How to Cite

Esker, A. R., Grüll, H., Satija, S. K. and Han, C. C. (2004), Polymer dynamics in hydrogenous systems by neutron reflectivity. J. Polym. Sci. B Polym. Phys., 42: 3248–3257. doi: 10.1002/polb.20176

Author Information

  1. 1

    Department of Chemistry (0212), Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

  2. 2

    Philips Research Laboratories, 5656 AA Eindhoven, The Netherlands

  3. 3

    Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899

  4. 4

    State Key Laboratory of Polymer Physics and Chemistry, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China, 100080

*Department of Chemistry (0212), Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061

Publication History

  1. Issue published online: 28 JUL 2004
  2. Article first published online: 28 JUL 2004
  3. Manuscript Accepted: 18 FEB 2004
  4. Manuscript Revised: 6 FEB 2004
  5. Manuscript Received: 2 SEP 2003

Funded by

  • Alexander von Humboldt Stiftung
  • Thomas F. Jeffress and Kate Miller Jeffress Memorial Trust. Grant Number: J-553

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Keywords:

  • diffusion;
  • LB films;
  • nanotechnology;
  • neutron reflectivity

Abstract

Neutron reflectivity is a powerful tool for exploring polymer dynamics above the glass-transition temperature at short diffusion times in layered thin-film systems. Recent studies of membrane-mediated interdiffusion in deuterium-labeled systems have shown that ultrathin membranes can track the position of the interface in binary polymeric diffusion couples and also can discriminate between perdeuterated and hydrogenous polymers of the same molecular weight. This report shows that similar dynamic information can be obtained for binary hydrogenous polystyrene (hPS) diffusion couples separated by an ultrathin (6-nm) isopentylcellulose cinnamate (IPCC) membrane on Si wafers (air//hPS/IPCC/hPS//Si, where “//” represents an interface between obviously different phases and “/” represents a dynamic interface between polymeric species). In particular, the air//hPS/IPCC/hPS//Si system provides the same information as perdeuterium-labeled polystyrene (dPS) diffusion couples separated by the same IPCC membrane (air//dPS/IPCC/dPS//Si). This technique has potential applications for the study of confinement effects on thin-film dynamics and macromolecular transport across membranes. © 2004 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 42: 3248–3257, 2004

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