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Poly(tetramethylene ether) glycolPoly(tetramethylene ether) glycol ia a polyether polyol. It is also known as PTMEG or polytetrahydrofuran and various tradenames such as "Terathane" and "PolyTHF". One of its CAS Registry Numbers is [25190-06-1]. Additional recommended knowledgeIt is prepared by acid-catalyzed polymerization of tetrahydrofuran.[1]. The polymers are of moderate size, usually having number average molecular weights of between 250 and 3000 da, for example see the "Terathane" series of PTMEG from Invista[2]. The main use for PTMEG polymers is to make elastomeric fibers such as Spandex[1]. These elastomers are either polyurethanes made by reacting PTMEG with diisocyanates, or polyesters made by reacting PTMEG with diacids or their derivatives[3]. References
Categories: Organic polymers | Ethers | Polyols |
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Poly(tetramethylene_ether)_glycol". A list of authors is available in Wikipedia. |