ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
The aqueous polymerization of pyrrole with varying FeCl3/Py mol ratio produces black insoluble powders. IR characterization reveals the shifting of the N—H stretching band to higher frequency with increasing FeCl3 amount in the feed composition due to lowering of intermolecular H-bonding. SEM shows a spongy texture of the polymer. TGA indicates the initial decomposition temperatures (180°-237°C) to be somewhat dependent on the FeCl3/Py feed ratio. DSC suggests the glass-transition temperature to be in the range 160-170°C for the polymers prepared with various feed compositions. The conductivity is also dependent on the FeCl3/Py feed composition and levels off at a value of ∼3 ohm-1cm-1. © 1994 John Wiley & Sons, Inc.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1994.070510907
