writer：Haizhou Yu; Wei Jiang
keywords：multicompartment micelles, ABC triblock copolymer, cross-linkable, homopolymer blending, self-assembly, hollow spheres
source：期刊
specific source：e-Polymers, 2010, no. 056
Issue time：2010年

本文通过将线性ABC两亲性三嵌段共聚物PS440-b-PBd1020-b-P2VP114溶解在甲苯和甲醇的选择性溶剂混合物中，控制合成了具有凸起边缘的多室碯碟状胶团。碟片大小可通过初始共聚物浓度控制，随共聚物浓度增加而增大。有趣的是，通过向体系中添加homo-PS，胶团发生从凸起边缘多室碯碟到球形，再到中空球的形态转变。中空球的直径随homo-PS含量增加而增大，但内部中空部分的直径保持不变。此外，PB嵌段可通过紫外照射进行交联，从而稳定预先形成的结构。

Multicompartment disks with bumpy edges could be controllably synthesized by dissolving a linear ABC amphiphilic triblock copolymer of polystyrene-b-polybutadiene-b-poly(2-vinylpridine) (PS440-b-PBd1020-b-P2VP114) in selective solvent mixtures of toluene and methanol. The disk size was controllable by the initial copolymer concentration. Interestingly, through adding a homo-PS to the system morphological transition took place from multicompartment disk with bumpy edges to sphere, and to hollow sphere with bumpy surfaces. Moreover, the PB block could be cross-linked by UV irradiation, stabilizing the preformed structure.

论文链接：https://doi.org/10.1515/epoly.2010.10.1.608