Inclusion of Conducting Polymers in Inorganic Hosts: Towards Conducting Nanostructures

A discussion of various strategies for the intrazeolite encapsulation of polymer filaments is given

T. Bein; P. Enzel

2013

Scholarcy highlights

  • A discussion of various strategies for the intrazeolite encapsulation of polymer filaments is given
  • Two examples are discussed in more detail: Poly(2-ethylaniline) and pyrolyzed polyacrylonitrile in zeolite hosts
  • The steric demands for the polymerization are illustrated by the inability of the polymer to form in the one-dimensional channel system of mordenite
  • Since protons are not necessary for the polymerization to occur, the polymer is formed in the acid form of the zeolites as well as in the Na-forms
  • The intrazeolite polymer chain length peaks at about 0.1 μm, and is greater than that obtained in bulk polymerizations
  • When intrazeolite PAN was pyrolyzed under nitrogen, black encapsulated material resulted that had lost the nitrile groups and hydrogen
  • After removal from the zeolite hosts, the pyrolyzed polyacrylonitrile showed electronic DC conductivity at the order of 10−5 Scm−1

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