Fig. 2: Comparison of 2062 kDa PS FS and FOW mechanical properties with reducing film thickness. | Nature Communications

Fig. 2: Comparison of 2062 kDa PS FS and FOW mechanical properties with reducing film thickness.

From: SMART transfer method to directly compare the mechanical response of water-supported and free-standing ultrathin polymeric films

Fig. 2

Gauge length is 4 mm. a Representative stress vs. strain profiles of FS PS from 155 to 19 nm. b Elastic modulus thickness dependence of both FS and FOW PS films. Insert represents the loss of inter-entanglements upon confinement at thicknesses below the end-to-end distance of a polymer chain. c Yield stress thickness dependence of both FS and FOW PS films. d Strain at failure thickness dependence of both FS and FOW PS films. “PA” corresponds to samples characterized post vacuum annealing at 115 °C for 1 h. Error bars represent the SD of the characterized mechanical properties.

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