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KMID : 1059519860300030289
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Journal of the Korean Chemical Society
1986 Volume.30 No. 3 p.289 ~ p.295
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Structural Studies upon the Interactive Effects between Organic Dyestuffs and Polyelectrolytes (I). The Stacking Effect of Methylene Blue and Acridine Orange
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Park Chong-Hoe
Shin Dae-Hyun
Yun Sock-Sung
Park Moo-Soon
Lee Hong
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Abstract
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Spectroscopic studies have been carried out on the metachromatic behavior of methylene blue(MB) and acridine orange(AO) in the presence of polyvinylsulfate(PVS) and polystyrenesulfonate(PSS) The characteristic changes of meta-band with the change of P/D value are discussed in terms of stacking theory. It has been found that the stacking effect in the PVS-dye system is stronger than that in the PSS-dye system and that MB shows stronger stacking effect than AO. A stacking model and dimension of bound dyes on the surface of polymer chain is proposed on the basis of the previously suggested model of dimer found in the aqueous solution of planar aromatic dyes. The proposed model is found to be reasonable in accordance with the experimental results obtained by various workers.
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