News&Events
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2023-11-11Alkaline-stable anion-exchange membranes with barium [2.2.2]cryptate cations: the importance of high binding constantsThe stability of cationic functional groups is one of the key factors determining lifetime of alkaline anion-exchange membranes (AAEMs) and the AAEM-based electrochemical devices. Main-group metal and crown ether complexes are stable cations due to the absence of degradation pathways including nucleophilic substitution, Hofmann elimination, and cation redox. However, the binding strength, a key... -
2023-11-11Ring-opening metathesis polymerization of cyclopropene derivatives towards polyolefin elastomer analoguesPolyolefin elastomers (POEs) are important reprocessable industrial materials with high strain-recovery performance. Traditional POEs are prepared from transition-metal-catalyzed polymerization of ethylene and α-olefins, while because of the complicated coordination polymerization mechanism, defining the actual distribution and length of alkyl branches in POEs is extremely challenging. We here... -
2023-11-11Anionic polymerization of nonaromatic maleimide to achieve full-color nonconventional luminescenceNonconventional or nonconjugated luminophore without polycyclic aromatics or extended π-conjugation is a rising star in the area of luminescent materials. However, continuously tuning the emission color within a broad visible region via rational molecular design remains quite challenging because the mechanism of nonconventional luminescence is not fully understood. Herein, we present a new cla... -
2023-11-11Trifluoromethoxy-substituted nickel catalysts for producing highly branched polyethylenes: impact of solvent, activator and N,N′-ligand on polymer propertiesHerein, The para-trifluoromethoxy-substituted 1,2-bis(imino)acenaphthenes, 1-[2,6-{(C6H5)2CH}2-4-F3COC6H2N]-2-(ArN)C2C10H6 (Ar = 2,6-Me2C6H3L1, 2,6-Et2C6H3L2, 2,6-iPr2C6H3L3, 2,4,6-Me3C6H2L4, 2,6-Et2-4-MeC6H2L5), have been synthesized and utilized to generate their respective nickel(II) halide complexes, LNiBr2 (Ni1–Ni5) and LNiCl2 (Ni6–Ni10). Characterization of the complexes has been ac... -
2023-11-11Ultralong phosphorescence cellulose with excellent anti-bacterial, water-resistant and ease-to-process performanceHerein, we present a phosphorescent cationized cellulose derivative by simply introducing ionic structures, including cyanomethylimidazolium cations and chloride anions, into cellulose chains. The imidazolium cations with the cyano group and nitrogen element promote intersystem crossing. The cyano-containing cations, chloride anions and hydroxyl groups of cellulose form multiple hydrogen bondin... -
2023-11-11The cover article published by our department was featured in the “Picture of the Month” section of Advanced Science NewsOur recent work published in Polymer Crystallization was highlighted as the cover article in volume 3 (issue 1) in February, and one image was selected as the “Picture of the Month” in Advanced Science News in March. The selected AFM image was called “ALINE WORLDS”, showing the crystal morphology of PA1012.Advanced Science News features an “Article of the Month” section of the selected re...