Skip to main content
Journal cover image

X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers

Publication ,  Journal Article
Chilkoti, A; Ratner, BD
Published in: Chemistry of Materials
January 1, 1993

The effects of iodine doping on poly(cis-butadiene) and the cis and trans isomers of polyisoprene were examined by core-level X-ray photoelectron spectroscopy (XPS). The XPS results for iodine-doped poly(cis-butadiene) are similar to that for polyisoprene, suggesting that both polymers are doped by a similar mechanism. Core-level XPS of the iodine-doped polymers suggests that the direction of charge transfer is from the backbone carbon to the iodine species. The binding energies of the iodine species in the I3d spectra of the doped polymers indicate the presence of molecular iodine and I3− (and/or I5−) species and the absence of a significant concentration of cationic iodonium-π complex. In conjunction with conductivity measurements, XPS analysis of cryogenically cooled (−80 °C) iodine-doped poly(cis-isoprene) and poly(transisoprene) provides direct spectroscopic evidence that the conductivity of the doped polymers is due to excess iodine, present in the form of polyiodide chains. © 1993, American Chemical Society. All rights reserved.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Chemistry of Materials

DOI

EISSN

1520-5002

ISSN

0897-4756

Publication Date

January 1, 1993

Volume

5

Issue

6

Start / End Page

786 / 792

Related Subject Headings

  • Materials
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Chilkoti, A., & Ratner, B. D. (1993). X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers. Chemistry of Materials, 5(6), 786–792. https://doi.org/10.1021/cm00030a012
Chilkoti, A., and B. D. Ratner. “X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers.” Chemistry of Materials 5, no. 6 (January 1, 1993): 786–92. https://doi.org/10.1021/cm00030a012.
Chilkoti A, Ratner BD. X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers. Chemistry of Materials. 1993 Jan 1;5(6):786–92.
Chilkoti, A., and B. D. Ratner. “X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers.” Chemistry of Materials, vol. 5, no. 6, Jan. 1993, pp. 786–92. Scopus, doi:10.1021/cm00030a012.
Chilkoti A, Ratner BD. X-ray Photoelectron Spectroscopy of Iodine-Doped Nonconjugated Polymers. Chemistry of Materials. 1993 Jan 1;5(6):786–792.
Journal cover image

Published In

Chemistry of Materials

DOI

EISSN

1520-5002

ISSN

0897-4756

Publication Date

January 1, 1993

Volume

5

Issue

6

Start / End Page

786 / 792

Related Subject Headings

  • Materials
  • 40 Engineering
  • 34 Chemical sciences
  • 09 Engineering
  • 03 Chemical Sciences