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Q-A: 2-morpholinoethyl laurate 

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Comparative Quenchers 

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Surfactant A: 3-methyl-3-(2,2,2-trifluoroethoxymethyl)-ox- etane/tetrahydrofuran/2,2-dimethyl-1,3-propanediol copolymer (Omnova Solutions, Inc.) of the structural for- mula shown below 

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a:(b+b’):(c+c’)=l:4-7:0.01-1 (molar ratio) 

Mw=l,500 

-continued 

