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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Memb Sci. 2018 Mar 23;555:348–361. doi: 10.1016/j.memsci.2018.03.060

Fig. 2.

Fig. 2.

(a) Mass gain profile of different batches of functionalized PAA-PVDF membranes. The green dotted box is showing the maximum mass gain possible for PVDF membrane when all the pores are saturated with water with a base porosity (Ø) of 40%. For 10 wt% of monomer concentration approximately 30–31% porosity (Ø) remains after functionalization (shown in purple lines). For 20 wt% of monomer concentration almost 9–12% porosity (Ø) remains after functionalization (shown in orange lines) for permeation of water, (b) TGA thermograms of bare PVDF membrane (blue line), 10 wt% PAA-PVDF membrane (black line), 20 wt% PAA-PVDF membrane (green line) and PAA (redline). With an increase in PAA percentage in PVDF membrane the TGA curves are shifted towards PAA curve. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)