Circular dichroism of crude oil and its derivatives. Role of permolecular structures

被引：5
|
作者：
Potapov, A. V. [1 ]
Kolyakov, S. F. [1 ]
Krasheninnikov, V. N. [1 ]
Dumesh, B. S. [1 ]
机构：
[1] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2006年 / 303卷 / 01期
关键词：
crude oil; permolecular structures; asphaltene; circular dichroism; optical activity; petrol; diesel fuel;
D O I：
10.1016/j.jcis.2006.07.040
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Petrols with different octane numbers, diesel fuel and solutions of cri de oil in toluene have been studied by the methods of absorption spectroscopy, circular dichroism spectroscopy and correlation spectroscopy of scattered light. Circular dichroism signal was registered for crude oil solutions in the spectral ranges corresponding to the measured earlier resonance absorption of asphaltene solutions in toluene. We show that the optical activity of crude oil solutions is due to the aggregation of asphalte to molecules in one spectral range and is intensified with the aggregation of asphaltene molecules in another spectral range. Petrols have no optical activity. The optical activity registered for diesel fuel is possibly due to the aggregation of asphaltene molecules. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码：159 / 163
页数：5
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