Poly(ethylene oxide) functionalization
Abstract
A simple procedure is provided by which the hydroxyl termini of poly(ethylene oxide) can be appended with functional groups to a useful extent by reaction and precipitation. The polymer is dissolved in warmed toluene, treated with an excess of organic base and somewhat less of an excess of a reactive acylating reagent, reacted for several hours, then precipitated in isopropanol so that the product can be isolated as a solid, and salt byproducts are washed away. This procedure enables functionalization of the polymer while not requiring laborious purification steps such as solvent-solvent extraction or dialysis to remove undesirable side products.
- Inventors:
- Issue Date:
- Research Org.:
- Seeo, Inc., Hayward, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1129165
- Patent Number(s):
- 8,691,919
- Application Number:
- 13/251,246
- Assignee:
- Seeo, Inc. (Hayward, CA)
- DOE Contract Number:
- OE0000223
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Oct 01
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Pratt, Russell Clayton. Poly(ethylene oxide) functionalization. United States: N. p., 2014.
Web.
Pratt, Russell Clayton. Poly(ethylene oxide) functionalization. United States.
Pratt, Russell Clayton. Tue .
"Poly(ethylene oxide) functionalization". United States. https://www.osti.gov/servlets/purl/1129165.
@article{osti_1129165,
title = {Poly(ethylene oxide) functionalization},
author = {Pratt, Russell Clayton},
abstractNote = {A simple procedure is provided by which the hydroxyl termini of poly(ethylene oxide) can be appended with functional groups to a useful extent by reaction and precipitation. The polymer is dissolved in warmed toluene, treated with an excess of organic base and somewhat less of an excess of a reactive acylating reagent, reacted for several hours, then precipitated in isopropanol so that the product can be isolated as a solid, and salt byproducts are washed away. This procedure enables functionalization of the polymer while not requiring laborious purification steps such as solvent-solvent extraction or dialysis to remove undesirable side products.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}
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