Quantitation of poly(ethylene glycol) concentration using Raman spectroscopy

被引：7
|
作者：
Melendez, Y
Schrum, KF
BenAmotz, D
机构：
[1] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907
[2] MARYVILLE COLL,DEPT CHEM,MARYVILLE,TN 37804
来源：
APPLIED SPECTROSCOPY | 1997年 / 51卷 / 08期
关键词：
polymer; Raman spectroscopy; poly(ethylene glycol); quantitation;
D O I：
10.1366/0003702971941700
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This study uses Raman spectroscopy to quantitate the amount of polymer in solution, in particular poly(ethylene glycol) dissolved in chloroform. For various chain lengths and polymer weight fraction ranges, it is shown that the ratios of peak intensities in the C-H stretching region may he used to quantitate polymer weight fraction with about 1% uncertainty. For low polymer weight fraction ranges (0-10%), the relationship between Raman intensity and polymer weight fraction is essentially linear, while at higher ranges (0-50%) the intensity Follows a nonlinear function derived ii am basic concentration relationships and indicates a universal scaling with polymer chain length.
引用
收藏
页码：1176 / 1178
页数：3
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