引用本文:
Xin Song LI, Guo Chang WANG, Bing Lin HE. Entanglement of Polymer Chains in Concentrated Region by Fluorescence Probe Technique[J]. Chinese Chemical Letters,
1999, 10(9): 795-798.
Citation: Xin Song LI, Guo Chang WANG, Bing Lin HE. Entanglement of Polymer Chains in Concentrated Region by Fluorescence Probe Technique[J]. Chinese Chemical Letters, 1999, 10(9): 795-798.
Citation: Xin Song LI, Guo Chang WANG, Bing Lin HE. Entanglement of Polymer Chains in Concentrated Region by Fluorescence Probe Technique[J]. Chinese Chemical Letters, 1999, 10(9): 795-798.
Entanglement of Polymer Chains in Concentrated Region by Fluorescence Probe Technique
摘要:
The fluorescence of polystyrene labeled with pyrenyl groups has been investigated in concentrated solutions.The ratio of excimer to monomer intensities (Ic/Im) of pyrenyl labets is Found to vary with inereasing polymer concentration (C) and display fractional dependence on the C. A critical concentration, Cm at about 0.32g/ml, is first manifested. The results arc interpreted by interchain interaction and entanglement of polymer chains.
English
Entanglement of Polymer Chains in Concentrated Region by Fluorescence Probe Technique
Abstract:
The fluorescence of polystyrene labeled with pyrenyl groups has been investigated in concentrated solutions.The ratio of excimer to monomer intensities (lc/1m) of pyrenyl labets is Found to vary with inereasing polymer concentration (C) and display fractional dependence on the C. A critical concentration, Cm at about 0.32g/ml, is first manifested. The results arc interpreted by interchain interaction and entanglement of polymer chains.
-
Key words:
- Fluorescence spectroscopy
- / entanglement
- / critical concentration
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 935
- HTML全文浏览量: 28
下载:
