Viscometric constants for small polystyrenes and polyisobutenes by gel permeation chromatography
β Scribed by Jianrong Xie
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 406 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0032-3861
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## Abstract A procedure is presented for determining the concentration of polymer lithium, alkyllithium, and monomer by use of smallβmolecule GPC. The system poly(styryllithium), butyllithium, styrene, and benzene are used to illustrate the method. The method as presented has a lower limit on the d
The use of a single detector in gel permeation chromatography (GPC) for samples of varying composition leads to erroneous conclusions. With certain simplifying assumptions, a gel permeation chromatograph equipped with properly selected dual detectors yields composition and molecular weight distribut
The statistical theories of main chain scission and crosslinking resulting from either homogeneous or inhomogeneous energy dissipation in polymers are summarized. The molecular weight distributions of polystyrene samples subjected in vacuo to 7-rays (homogeneous energy dissipation) or to U.V. irradi