Figure 4.

OTR as a function of density for films with a grammage of 20 g/m2. OTR was measured at 50% relative humidity. The measurements corresponding to the TEMPO-pretreated samples have been encircled.

Chinga-Carrasco and Syverud Nanoscale Research Letters 2012 7:192   doi:10.1186/1556-276X-7-192
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