Structure and conductivity in substituted polypyrroles. Part 1. Synthesis and electropolymerization ofN-trimethylsilylethoxymethyl-3-methyl-4-pyrrole carboxylate ethyl ester
✍ Scribed by Chen, Yu; Imrie, Corrie T.; Cooper, Jon M.; Glidle, Andrew; Morris, David G.; Ryder, Karl S.
- Book ID
- 101226868
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 248 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0959-8103
No coin nor oath required. For personal study only.
✦ Synopsis
The electrochemical polymerization of N-trimethylsilylethoxymethyl-3-methyl-4-pyrrole carboxylate ethyl ester (MPCE-SEM) in the presence of pyrrole, to give free-standing copolymer Ðlms is described. These Ðlms have been characterized by surface conductivity measurements, reÑectance FTIR spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. Increasing the relative concentration of MPCE-SEM in the polymerization solution resulted in an increase in the proportion of these units in the copolymer Ðlm. Increasing the proportion of MPCE-SEM units in the copolymer resulted in a decrease in surface conductivity. This is consistent with expectation because Nsubstituted polypyrroles tend to have lower conductivity values than unsubstituted polypyrrole. SigniÐcantly, it has also been shown that the Nprotecting group of the MPCE-SEM unit can be removed after polymerization under mild conditions in a solid phase deprotection procedure.
1998 Society ( of Chemical Industry