引用本文:
Xin Song LI, Guo Chang WANG, Bing Lin HE. Intrachain and Interchain Interactions in Polystyrene:Dilute and Semidilutc Solutions[J]. Chinese Chemical Letters,
1999, 10(11): 961-964.
Citation: Xin Song LI, Guo Chang WANG, Bing Lin HE. Intrachain and Interchain Interactions in Polystyrene:Dilute and Semidilutc Solutions[J]. Chinese Chemical Letters, 1999, 10(11): 961-964.
Citation: Xin Song LI, Guo Chang WANG, Bing Lin HE. Intrachain and Interchain Interactions in Polystyrene:Dilute and Semidilutc Solutions[J]. Chinese Chemical Letters, 1999, 10(11): 961-964.
Intrachain and Interchain Interactions in Polystyrene:Dilute and Semidilutc Solutions
摘要:
Excimer formation in pyrenyl labeled polystyrene has been investigated in dilute solution region.The change of the intensity ratio of excimer to monomer (Ie/Im) with increasing concentration(C), is interpreted by intrachain and interchain interactions.The double logarithmic plot of Ie/Im vs C displays two critical points, Csat about 2.5×10-3g/ml and C+ at about 3.2×10-2 g/ml.In dilute region Cs, excimer formation may be controlled by intrachain interaction.
English
Intrachain and Interchain Interactions in Polystyrene:Dilute and Semidilutc Solutions
Abstract:
Excimer formation in pyrenyl labeled polystyrene has been investigated in dilute solution region.The change of the intensity ratio of excimer to monomer (Ie/Im) with increasing concentration(C), is interpreted by intrachain and interchain interactions.The double logarithmic plot of Ie/Im vs C displays two critical points, Csat about 2.5×10-3g/ml and C+ at about 3.2×10-2 g/ml.In dilute region Cs, excimer formation may be controlled by intrachain interaction.
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Key words:
- Excimer fluorescence
- / dilute solution
- / chain interaction
- / critical concentration
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