Interactions between CO and Poly(p-phenylene vinylene) as Induced by Ion-Exchanged Zeolites

Materials

Nareerat Thongchai²  Ruksapong Kunanuruksapong²  Sumonman Niamlang²  Ladawan Wannatong¹  Anuvat Sirivat² 

[1] Department of Materials and Production Technology Engineering, King Mongkut’s University of Technology, Bangkok 10800, Thailand; E-Mail:;Conductive and Electroactive Polymers Research Unit, and Center of Petroleum Petrochemicals and Advanced Materials, The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand; E-Mails:

关键词: conductive polymer;    electrical conductivity;    CO;    ion-exchanged zeolites;   

DOI  :  10.3390/ma2042259

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.