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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 39, Number 8
JKCSEZ 39(8)
April 20, 1995 

Kinetic Studies of Aggregation of 3,3'-Dipropyl oxacarbocyanine onto Poly(styrenesulfonate

Poly(styrenesulfonate) 용액에서 3,3'-Dipropyl oxacarbocyanine 색소분자의 회합현상에 대한 반응속도론적 연구
Hong Lee*, Eun Suk Lim, Huyn-Ock Pae

이 홍*, 임은숙, 배현옥
3,3'-dipropyl oxacarbocyanine(DPC)와 poly(styrenesulfonate)(PSS)의 상호작용효과를 흡수 및 형광 분광학적 방법으로 연구하였으며, 이들 효과는 stacking model로 설명되었다. DPC와 PSS계의 상호 작용에 대한 반응속도론적 고찰을 흡수 및 형광 정지흐름법에 의하여 연구하였다. DPC-PSS계의 이완효과는 두개의 이완과정을 가정함으로써 정량적으로 설명할 수 있었다. 또한 염효과에 의한 이완시간의 변화를 고찰하여 DPC-PSS 계의 회합반응 메카니즘이 두 단계로 일어남을 설명할 수 있었다.

The interaction between 3,3'-dipropyl oxacarbocyanine and poly(styrenesulfonate) has been studied by means of absorption and fluorescence spectroscopic methods. The results was interpreted by stacking model. The kinetic studies of the interaction between 3,3'-dipropyl oxacarbocyanine and poly(styrenesulfonate) were carried out by the absorption and fluorescence spectroscopic stopped-flow methods. The observed relaxation effect in DPC-PSS system was described quantitatively by assuming two relaxation processes. The dependence of rate of reaction on the salt concentration of the solution was also studied. The results are consistent with the two-step mechanism.

604 - 610
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