| http://www.w3.org/ns/prov#value | - Pluronic (a propylene oxide copolymer, available from BASF) and Tetronic (BASF) polyol surfactants; and polyethers, including water soluble polyoxyalkylene polymers, particularly poly(ethylene glycol) (PEG) and poly(ethylene glycol) derivatives such as polytethylene glycol) methyl ether, poly(ethylene glycol) silicon derived ethers and the like.
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