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|Title: ||A SOLID-STATE NMR INVESTIGATION OF THE DOPABILITY OF POLY(P-PHENYLENE VINYLENE) MODEL COMPOUNDS AND CORRESPONDING POLYMERS WITH IODINE|
|Authors: ||NOUWEN, J|
|Issue Date: ||1992|
|Publisher: ||ELSEVIER SCIENCE SA LAUSANNE|
|Citation: ||SYNTHETIC METALS, 48(2). p. 143-159|
|Abstract: ||Twelve phenylene vinylene compounds, including poly(p-phenylene vinylene) (PPV), poly(2,5-dimethoxyphenylene vinylene) and the copolymer of PPV and poly(2,5-dimethoxyphenylene vinylene), have been prepared and doped with iodine to form electrically conducting materials. Characterization of the molecular structure and conductivity as a function of the dopant level for trans,trans-1,4-bis(2-(3,4,5-trimethoxyphenyl)ethenyl)benzene (MPV4) and trans-3,4,4',5-tetramethoxystilbene (MPV7) were carried out. Methoxy groups in a para position on the terminal rings contribute more to the conductivity than meta-substituted methoxy groups. This correlates well with the spectral changes that occur in the CP/MAS C-13 spectra upon doping. Conductivity measurements on trans-stilbene (MPV8), trans, trans-distyrylbenzene (MPV9) and all-trans PPV show a slight chain length dependency. Upon doping with iodine, cis-trans mixtures of MPV4 are converted to trans, trans isomers, and the original double bond configuration does not affect the conductivity.|
|Notes: ||UNIV INSTELLING ANTWERP,DEPT CHEM,B-2610 WILRIJK,BELGIUM.NOUWEN, J, UNIV LIMBURG,INST MAT RES,UNIV CAMPUS,B-3590 DIEPENBEEK,BELGIUM.|
|ISI #: ||A1992JB15000002|
|Type: ||Journal Contribution|
|Appears in Collections: ||Research publications|
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