Characterization of copolymers fractionated using supercritical fluids
β Scribed by Kevin M. Scholsky; Kevin M. O'Connor; Carl S. Weiss; Val J. Krukonis
- Publisher
- John Wiley and Sons
- Year
- 1987
- Tongue
- English
- Weight
- 457 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
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Propylene-butene-1 copolymer (PBC) prepared with a titanium catalyst system was fractionated by temperature rising elution fractionation (TREF) over a temperature range of 5-80ΠC. PBC was shown to have a wide composition distribution ranging between 12-47 mol % of butene-1. Most of the fractions sho
The current work was aimed at evaluating a new method, supercritical fluid extraction of emulsions (SFEE), for the production of composite (e.g., polymer-drug) micro-and nanoparticles, intended for application in sustained-release drug delivery formulations. Using the proposed method, composite part