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(a) Water contact angle (WCA) variation curves and (c) the average pore size values of single-spinning PDLA fiber and side-by-side fiber with different contents of AlCl3; (b) the WCA values and (d) the pore size distribution of PLLA, PDLA, PDLA+AlCl3, s-s, s-s+AlCl3 fiber membrane samples.
