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U.S. Department of Energy
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Stabilization of polyaniline solutions

Conference ·
OSTI ID:10107030

Adding hindered amine light stabilizers (HALS) to N-methyl- pyrrolidinone (NMP) solutions of polyaniline delays gelation. It is hypothesized that HALS act in some manner other than as traditional antioxidants in preventing gelation; the secondary amine functional group appears to play a critical role, perhaps by disrupting the physical crystallization network that may contribute to gelation. Pyrrolidine, a secondary amine, or ammonia is an effective cosolvent with NMP in dissolving PAn-EB (emeraldine base). 6 refs, 4 figs.

Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States); National Aeronautics and Space Administration, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
10107030
Report Number(s):
LA-UR--93-3967; CONF-940301--2; ON: DE94003958
Country of Publication:
United States
Language:
English