Difference between revisions of "Polyethylene glycol"
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== Description == | == Description == | ||
| − | A water-soluble polymer available in a range of viscosities from a honey-like solution to a hard wax-like block. Polyethylene glycols are used commercially as solvents for [http://cameo.mfa.org/materials/fullrecord.asp?name=dye dyes], [http://cameo.mfa.org/materials/fullrecord.asp?name=natural | + | A water-soluble polymer available in a range of viscosities from a honey-like solution to a hard wax-like block. Polyethylene glycols are used commercially as solvents for [http://cameo.mfa.org/materials/fullrecord.asp?name=dye dyes], [http://cameo.mfa.org/materials/fullrecord.asp?name=natural%20resin natural resins], and [http://cameo.mfa.org/materials/fullrecord.asp?name=protein proteins]. They are also used as plasticizers for [http://cameo.mfa.org/materials/fullrecord.asp?name=casein casein], [http://cameo.mfa.org/materials/fullrecord.asp?name=gelatin gelatin], [http://cameo.mfa.org/materials/fullrecord.asp?name=glue glue], [http://cameo.mfa.org/materials/fullrecord.asp?name=zein zein], [http://cameo.mfa.org/materials/fullrecord.asp?name=cork cork], and [http://cameo.mfa.org/materials/fullrecord.asp?name=ink inks]. [http://cameo.mfa.org/materials/fullrecord.asp?name=Carbowax%C2%AE Carbowax®] formulations have also been used to slowly replaced water in water-logged wood providing structural support while decreasing wetness. They, however, remain somewhat tacky and can retain dirt that darkens and discolors the artifact. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | PEG; poly(oxyethylene); polyglycol; polyether glycol; | + | PEG; poly(oxyethylene); polyglycol; polyether glycol; Carbowax® [Union Carbide]; PEG [Shell Chemical]; Polyethylenglykol (Deut.); macrogol (Fr.); polyetylenglykol (Sven.); polietilenglicol (Esp.) |
== Other Properties == | == Other Properties == | ||
| Line 38: | Line 38: | ||
== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Hermann Kuhn, ''Conservation and Restoration of Works of Art and Antiquities'', Butterworths, London, 1986 |
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: dyeshttp://en.wikipedia.org/wiki/Polyethylene_glycol (Accessed Feb. 10, 2006) | * Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: dyeshttp://en.wikipedia.org/wiki/Polyethylene_glycol (Accessed Feb. 10, 2006) | ||
| − | * | + | * Gordon Hanlon, contributed information, 1998 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 06:21, 24 July 2013
Description
A water-soluble polymer available in a range of viscosities from a honey-like solution to a hard wax-like block. Polyethylene glycols are used commercially as solvents for dyes, natural resins, and proteins. They are also used as plasticizers for casein, gelatin, glue, zein, cork, and inks. Carbowax® formulations have also been used to slowly replaced water in water-logged wood providing structural support while decreasing wetness. They, however, remain somewhat tacky and can retain dirt that darkens and discolors the artifact.
Synonyms and Related Terms
PEG; poly(oxyethylene); polyglycol; polyether glycol; Carbowax® [Union Carbide]; PEG [Shell Chemical]; Polyethylenglykol (Deut.); macrogol (Fr.); polyetylenglykol (Sven.); polietilenglicol (Esp.)
Other Properties
Average molecular weights range from 200-6000
Soluble or miscible with water and most organic solvents.
Heat stable, inert, low vapor pressure.
| Composition | HOCH2(CH2OCH2)nCH2OH |
|---|---|
| CAS | 25322-68-3 |
Hazards and Safety
Combustible. Non-toxic (used in many foods).
Comparisons
General Characteristics of Polymers
Physical Properties for Selected Thermoplastic Resins
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: dyeshttp://en.wikipedia.org/wiki/Polyethylene_glycol (Accessed Feb. 10, 2006)
- Gordon Hanlon, contributed information, 1998