| This paper focuses on the assembly and hierarchical assembly of block copolymers and the construction of inorganic/organic Janus nanotubes based on block copolymers as templates.The main contents are as follows:(1)The fabrication of the hierarchical polymeric colloidosomes with typical hollow internal structures self-assembled from the polystyrene-block-poly(2-vinyl pyridine)(PS-bP2VP)block copolymer spherical micelles through the emulsion interfacial confinement,which is constructed through the water-in-1-butanol emulsion system.Moreover,the hierarchical colloidosomes can disassemble into the original uniform spherical micelles under the acid aqueous solution,indicating that the colloidosomes possess good p H stimuliresponsibility.Finally,the stability of the colloidosomes can be greatly improved by crosslinking the P2 VP corona of original spherical micelles,offering the effective templates for construction of the multifunctional materials.This finding provides a simple yet effective method for the fabrication of the hierarchical colloidosomes from the block copolymer building blocks.(2)The fabrication of novel and highly uniform inorganic/organic hybrid Janus nanotubes via disassembling the mesoporous inorganic nanoparticles(NPs)/polystyreneblock-poly(4-vinylpyridine)(PS-b-P4VP)hybrid sheets,which are generated through the insitu reduction of functional metal precursors on the prepared PS-b-P4 VP mesoporous scaffolds.More importantly,the internal pore size of the hybrid Janus nanotubes can be precisely tuned by readily controlling the swelling time of the PS-b-P4 VP sheet-like assemblies in a selective solvent for P4 VP domains,thus generating the particular inorganic/organic hybrid Janus nanotubes with adjustable inner diameter size.We believe that our finding will provide an efficient and universal route to fabricate the particular inorganic/organic hybrid nanotubes for hierarchical functional devices and nanomaterials. |
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