Preparation and Performance Study of Strong and Tough Polyacrylonitrile/Polyurethane Composite Electrospun Janus Fiber Membranes for Oil/Water Emulsion Separation. - Wang, Shuai; Chen, Xiao‐yu; Zhu, Xin‐Yu; Li, Hui‐rong; Feng, Shi‐da; Fang, Shao‐kang; Yuan, Yu‐shan; Wang, Xue; Li, Jin‐tong; Yu, Yue (Polymer Engineering & Science, 2026)