Determination of mean molecular weight of polyethylene glycols by several physical methods
β Scribed by Sid Ahmed Taleb-Bendiab; Jean-Maurice Vergnaud
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 517 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
In this work, we determined the number average molecular weight of some polyethylene glycols (PEGs) using vapor pressure osmometry. In general, this technique works with a plot of Dr p /c p versus c p (concentration) and the molecular weight is determined by the calibration constant obtained from th
## Gas chromatography Volatile polymers Polyethylene glycols Comparison between CPG and ofter methods Identification of components and analysis of PEG mixtures, as well as the molecular weight determination, are of importance. This problem is difficult, and it requires the use of several different