The Gel Permeation Chromatography of Asphalt and the Characterization of Its Fractions in Terms of Molecular and Unit Sheet Weights
作者:
HuynhHon Kiet,
LouisPh. Blanchard,
ShadiL. Malhotra,
期刊:
Separation Science
(Taylor Available online 1977)
卷期:
Volume 12,
issue 6
页码: 607-634
ISSN:0037-2366
年代: 1977
DOI:10.1080/00372367708057075
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Asphalt obtained from a refinery in Montreal was dissolved in toluene then fractionated in a preparative gel permeation chromatograph (prep.-GPC). Twenty-three fractions differing widely in molecular weights were collected and characterized by analytical GPC, viscometry, vapor pressure osmometry (VPO), element analyses, infrared spectroscopy (IR), and nuclear magnetic resonance spectroscopy (NMR). Similar studies were also carried out, for comparison purposes, on aliphatic and aromatic hydrocarbons to elucidate structure information on the different asphalt fractions.
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