The Sizes of Polymer Molecules and the GPC Separation
作者:
FredW. Billmeyer,
K.H. Altgelt,
期刊:
Separation Science
(Taylor Available online 1970)
卷期:
Volume 5,
issue 4
页码: 393-402
ISSN:0037-2366
年代: 1970
DOI:10.1080/00372367008068438
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
This introductory review explains in simplest terms the separation mechanism in GPC and the concept of size as its discriminant. Sample molecules permeate the gel to different degrees depending on their size and are kept out of the solvent stream in the interstices in correspondingly different time ratios. For rigid molecules the size is determined either by the volume or by the most prominent linear dimension. A better approximation seems to be Giddings's “mean external length.”
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