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Title: Charge transfer interactions in some poly[[o-(trimethylsilyl)phenyl]acetylene]-acceptor complexes
Authors: Kang, E.T. 
Neoh, K.G. 
Tan, K.L. 
Issue Date: May-1991
Citation: Kang, E.T., Neoh, K.G., Tan, K.L. (1991-05). Charge transfer interactions in some poly[[o-(trimethylsilyl)phenyl]acetylene]-acceptor complexes. Journal of Polymer Science, Part B: Polymer Physics 29 (6) : 669-676. ScholarBank@NUS Repository.
Abstract: Charge transfer (CT) interactions between poly[[o-(trimethylsilyl)phenyl]acetylene] or poly(o-Me3SiPA) and some electron acceptors were studied by ultraviolet-visible and infrared absorption spectroscopy and by x-ray photoelectron spectroscopy (XPS). The electron acceptors used included iodine, bromine, o-chloranil, o-bromanil, 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ), and tetracyanoethylene (TCNE). Varying degrees of CT interactions were observed in all of the polymer/acceptor complexes studied. The electrical conductivities σ of the organic acceptor complexes exhibited a strong acceptor concentration dependence at low acceptor levels, with the DDQ complex exhibiting the highest σ. The extent of CT and the redistribution of charges resulting from the CT in all the complexes were revealed by XPS. The poly(o-Me3SiPA)/I2 complex film lost iodine spontaneously while more than half of the bromine in the poly(o-Me3SiPA)/Br2 complex existed as covalently bonded bromine, even at low halogen loading.
Source Title: Journal of Polymer Science, Part B: Polymer Physics
ISSN: 08876266
DOI: 10.1002/polb.1991.090290604
Appears in Collections:Staff Publications

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