水溶性高分子와 染料의 相互作用 : Sodium Poly(styrene sulfonate)와 P-Amino Azobenzen과의 相互作用 Interaction between Sodium poly (styren sulfonate) and p-Aminoazobenzene = Interaction between Water-soluble Polymer and Dyes

다국어 초록 (Multilingual Abstract)

The interaction of p-aminoazobenzen with sodium poly(styren sulfonate) was investigated by means of solubility measurement, equilibrium dialysis, spectrophotometric method and dynamic dialysis technique.
The solubility of PAAB increases in the presence of PSSNa. The increase in solubility depends on the degree of sulfonation of the polymer. The smaller the D.S., the larger becomes the solubilization.
The thermodynamic quantities of transfer of PAAB from water to the aqueous solutions of PSSNa are ??.
It was suggested the interaction between PAAB and PSSNa could be interpreted in terms of partition of PAAB between polymer and aqueous phase similar to the dyeing system of nonionic dye and polymer.
The spectrophotometric results showed the presence of two different bindings with equilibrium in each case; one was the electrostatatic binding of PSSNa with the dyes protonated at B-nitrogen of the azo group (complex 1) and the other was the binding of these dye molecules with the polymer in term of a mechanism accompanying a change in electronic state of the dyes (complex 2).
The binding constants, Kb and K for complex 1 and 2, respectly were calculated by the measurements of absorptivities at 510 and 460 nm for PAAB-PSSNa system.
From the results using the dynamic dialysis, the apparent biding donstant, calculated on the basis of free residue of polymer and free and bound dye, was dependent on the dye concentration in all cases examined.
The positive cooperativity in the dye binding was suggested by Sigmoidal increases of the binding density, the molar ratio of bound dye to polymer residue, with rise of free dye concentration and by concave upward shape of the Scatchard plot.
A speculative model of the interaction was presented in term of the three parameters, n. K. ω.

목차 (Table of Contents)

• Ⅰ. 緖論
• Ⅱ. 實驗
• Ⅲ. K. ?? 및 ??의 算出
• Ⅳ. 結果 및 考察
• Ⅴ. 結論
• Summary