Front Cover: In article number 1900658, Christian Clasen and co‐workers show different morphologies of polymeric micro‐particles of an ABA triblock copolymer encoded with CdSe/CdS core‐shell quantum dots (QDs), obtained by electrospraying from varying solvents. The creation of poly(styrene‐ethylene‐butylene‐styrene) (SEBS) monodisperse spherical microparticles with a tunable morphology from flat, pancake shaped to spherical particles arises from the selectivity of the solvent for one of the distinct blocks in the polymer, the resulting alteration in the sol–gel state, and the related differences in solvent mass transfer within the electrosprayed droplets. The fluorescence characteristics of the final, QD embedded polymer particles and photodegradation stability indicate significant stability and dispersion quality improvement in the spherical particle morphology.

中文翻译：

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电喷涂三嵌段共聚物SEBS：溶剂体系的影响和量子点的嵌入

封面：在文章编号1900658中，Christian Clasen及其同事展示了由CdSe / CdS核-壳量子点（QD）编码的ABA三嵌段共聚物的聚合物微粒的不同形态，这些微粒是通过从不同溶剂进行电喷雾获得的。聚苯乙烯-乙烯-丁烯-苯乙烯（SEBS）单分散球形微粒的形成，具有从扁平状，薄饼状到球形微粒的可调节形态，这是由于溶剂对聚合物中一种独特嵌段的选择性所致溶胶-凝胶状态的改变，以及电喷雾液滴内溶剂传质的相关差异。最终的荧光特性