## Abstract This paper reports on the use of supercritical carbon dioxide to fractionate a low molecular weight, high density polyethylene into very narrow molecular weight distributions (MWDs). A simple extraction system was developed that allowed relatively trouble free extractions of the polyeth
Supercritical fluid fractionation of copolymers based on chemical composition and molecular weight
β Scribed by J. Alan Pratt; Sang-Ho Lee; Mark A. McHugh
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 979 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Amphiphilic conetworks based on endβlinked copolymers of the hydrophilic ionizable 2β(dimethylamino)ethyl methacrylate and the hydrophobic __n__βbutyl methacrylate bearing 3, 5, 7, and 9 blocks were synthesized using group transfer polymerization, and employing a bifunctional initiator
2RD (UK) [\*\*] We acknowledge the EPSRC for a studentship (A. J. B) and the EPSRC Multi-Use Equipment Initiative for funding (J. Z.). We thank Mr. P. Fields and Mr. R. Wilson for their advice and technical assistance, and Perplas Medical Ltd. for supplying the UHMWPE used in this study. We acknowle
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