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
On the reliability of molecular weight determination by vapor pressure osmometry
✍ Scribed by L. Mrkvičaková; S. Pokorny
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 373 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The Wescan Model 232-A' VPO was modified with a 12 volt regulated power supply for supplying bridge current and with thermocouples to allow for direct digital readout of the syringe box and measuring chamber temperatures. The modified instrument was used to measure m,, of standard (NBS) polyethylene
## Synopsis cis-Polyisoprene in dilute solution in toluene (plus antioxidant) undergoes random scission when exposed to ?-radiation. The possibility of using this scission in a method to assess the width of the molecular weight distribution of the polymer has been explored and found potentially us