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CHARACTERIZATION OF SOME IRAQI ASPHALTS I. NUMBER AVERAGE MOLECULAR WEIGHT INVESTIGATION OF DORA AND QAIYARAH ASPHALTS

 

作者: MustafaM. F. Al-Jarrah,   HussainH. Al-Soufi,   RitaL. Apikian,   H. I. Al-Saleem,   S. S. Naoom,  

 

期刊: Fuel Science and Technology International  （Taylor Available online 1986）
卷期: Volume 4, issue 3  

页码: 249-260

 

ISSN:0884-3759

 

年代: 1986

 

DOI:10.1080/08843758608915807

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

The number average molecular weight (Mn¯) of two Iraqi asphalts has been studied before end after thermal treatment using vapour pressure osmometery. Changes in Mn¯ values after thermal aging were compared with the changes in their physical and mechanical properties. Toluene, benzene, cyclohexane, tetrahydrofuran and carbon tetrachloride were used to fractionate the asphalts The Mn¯ of each fraction was determined before and after aging.

 

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