Conducting Electronic Polymers by Non-Redox Processes
Abstract
Defects involving sp3 hybridized carbon atoms in the form of (HCD) units have been controllably introduced into trans-(CH)x by chemical methods to produce polymers of the type trans0(CHDy)x, i.e., ((CH)1-y-(HCD)y)x (y=0, 0.15 and 0.17), in order to study the nature of these defects and their effect on the electronic and magnetic properties of trans-(CH)x. The effects of these defects on the electrochemical reduction (n-doping) of trans-(CHDy)x up to 4.0 mol % reduction levels have been studied. New -(CH)x and ARA (i.e. Additional reducing Agent)-(CH)x have been synthesized at room temperature. New -(CH)x is formed by polymerizing acetylene on flat polymeric or glass substrated using an A1Et3/ Ti(n-BuO)4 catalyst in silicone oil which has previously been heat-treated. Additional reducing agents may be added to the catalyst after its thermal treatment to produce ARA -(CH)x. 15N NMR spectroscopy has been utilized as a structural probe for the leuco- and emeraldine base forms of polyaniline. Preliminary results suggests that the emeraldine base polymer exists as an alternating copolymer of oxidized and reduced units. End-groups are not detected at the experimental level of sensitivity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1987
- Accession Number
- ADA205552
Entities
People
- Alan G. Macdiarmid
Organizations
- University of Pennsylvania