Kenneth R. Carter, Robert D. Miller, et al.
Macromolecules
In this paper, we report on a new NMR method for exploring the interfacial region in a multicomponent polymer mixture, one component of which contains unpaired electron spins. The samples used here consist of clusters of the electron-rich polymer several hundred angstroms in size dispersed in the bulk of a support polymer. The idea is to use the method of dynamic nuclear polarization (DNP), exploiting the short range of the electron-nucleus coupling to selectively polarize nuclei close to the clusters which contain the unpaired electron spins. The NMR spectrum of these nuclei is subsequently detected. © 1988, American Chemical Society. All rights reserved.
Kenneth R. Carter, Robert D. Miller, et al.
Macromolecules
S.F. Fan, W.B. Yun, et al.
Proceedings of SPIE 1989
T. Schneider, E. Stoll
Physical Review B
Q.R. Huang, Ho-Cheol Kim, et al.
Macromolecules