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- Title
Interactions between CO and Poly(p-phenylene vinylene) as Induced by Ion-Exchanged Zeolites.
- Authors
Thongchai, Nareerat; Kunanuruksapong, Ruksapong; Niamlang, Sumonman; Wannatong, Ladawan; Sirivat, Anuvat; Wongkasemjit, Sujitra
- Abstract
The effects of zeolite type, ion-exchanged level, and ion type on the electrical conductivity responses of poly(p-phenylene vinylene) (PPV), doped poly(p-phenylene vinylene) (dPPV) and zeolite composites under CO exposures were investigated. The electrical sensitivity of dPPV/Cu+-ZSM5(Si/Al = 23) system shows a negative sensitivity value of -0.154, while the Na+ system gives a positive sensitivity of 1.48. Based on FTIR and TPD data, the positive response of PPV/Na+-ZSM5 stems from the CO molecules acting as a secondary dopant. On the other hand, the negative response of PPV/Cu+-ZSM5 originates from the fact that CO molecules are selectively adsorbed on Cu+ sites rather than C+ sites of doped PPV.
- Subjects
POLYMERS; ELECTRIC conductivity; ZEOLITES; ION exchange (Chemistry); MOLECULES; CARBON monoxide; ETHYLENE dichloride; HALIDES; NITROGEN
- Publication
Materials (1996-1944), 2009, Vol 2, Issue 4, p2259
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma2042259