Hyperbranched Polyborate: A Non‐conjugated Fluorescent Polymer with Unanticipated High Quantum Yield and Multicolor Emission. - Guo, Liulong; Yan, Lirong; He, Yanyun; Feng, Weixu; Zhao, Yan; Tang, Ben Zhong; Yan, Hongxia (Angewandte Chemie International Edition, 2022)