Hostname: page-component-6bf8c574d5-w79xw Total loading time: 0 Render date: 2025-02-22T20:31:59.058Z Has data issue: false hasContentIssue false
  • English
  • Français

Selective Formation of Radicals at Polymer-Solvent Interface. A Direct Determination of Solvent Penetration into a Porous Network

Published online by Cambridge University Press:  25 February 2011

J.-P. Korb  and
C. Chachaty
J.-P. Korb
Affiliation:
Laboratoire de Physique de la Matière Condensèe, Ecole Polytechnique, 91128 Palaiseau, France
C. Chachaty
Affiliation:
Dèpartement de Physique Gènèrale, DPHG/SCM/BP 121, CEN de Saclay, 91191 Gif sur Yvette, France
Get access

Abstract

This work shows that, in studies on porous disordered organic material such as cross-linked resin of poly(4- vinylpyridine, one has to consider a possible interfacial adsorption of solvents. We propose the nuclear relaxation associated with ESR of y-ray induced radicals as an efficient method to estimate the extent of solvent penetration into the interface of the polymer network. This method is however limited to the case where free radicals resulting from solvent-substrate interactions can be selectively generated at interfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 248: Symposium O – Complex Fluids , 1991 , 447
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Korb, J.-P., Sapoval, B., Chachaty, C., Tistchenko, A.M., J. Phys. Chem. 94, 953 (1990).CrossRefGoogle Scholar
2. Chachaty, C., Korb, J.-P., Maarel, J.R.C. Van der, Bras, W. and Quinn, P., Phys. Rev. B44, 4778 (1991).CrossRefGoogle Scholar
3. Chachaty, C. and Korb, J.-P. J. Phys. Chem. 95, 6058 (1991).CrossRefGoogle Scholar
4. Chachaty, C., C. J. Chim. Phys. 64, 608 (1967).CrossRefGoogle Scholar