Due to the unique structures and properties, multiblock copolymer brushes have broad applications in thermoplastic elastomers, drug delivery, porous materials and nanolithography. In the work by Lifen Xiao and colleagues on page 99, a novel multiblock copolymer brush (PHEA‐g‐PEG)x‐co‐(PEG23)y is synthesized by combining the efficient double strainpromoted azide‐alkyne cycloaddition (DSPAAC) and copper‐catalyzed azide‐alkyne cycloaddition (CuAAC) click reactions. (DOI: 10.1002/pol.20200697)

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由于其独特的结构和性能，多嵌段共聚物刷在热塑性弹性体，药物输送，多孔材料和纳米光刻方面具有广泛的应用。在Lifen Xiao及其同事在第99页上的工作中，通过结合高效的双应变促进的叠氮化物-炔烃环加成（DSPAAC）和铜-铜的合成，合成了新型的多嵌段共聚物刷（PHEA-g-PEG）x-co（PEG23）y催化的叠氮化物-炔烃环加成（CuAAC）单击反应。（DOI：10.1002 / pol.20200697）