Uniform Nanorods with Regioselective Distribution of Inorganic Nanoparticles Templated by 2D Block Copolymer Nanosheets

The inorganic/organic hybrid materials with regioselective distribution of functional inorganic nanoparticles (NPs) have received constant interest attributed to fascinating integrated properties. However, there remains a formidable challenge in realizing the regioselective distribution of NPs for the specific hybrid nanorods. Herein, we report the construction of uniform core- shell hybrid nanorods with the regioselective distribution of inorganic NPs by selectively disassembling the prepared NPs/polystyrene-block-poly(4-vinyl-pyridine) (PS-b-P4VP) hybrid nanosheets. Moreover, through precisely adjusting the parameters, such as complexation ability between the metal precursor and P4VP blocks, the protonation degree of P4VP blocks and complexation time, the NPs/polymer core-shell hybrid nanorod with the uniform distribution of NPs, and dumbbell-like hybrid nanorods with selective distribution of NPs at both ends can be obtained. This finding reveals a unique insight into the design of the anisotropic functional hybrid materials with the regioselective distribution of inorganic NPs.

Automated summary

Herein, we report the construction of uniform core-shell hybrid nanorods with the regioselective distribution of inorganic nanoparticles (NPs) by selectively disassembling the prepared NPs/polystyrene-block-poly(4-vinyl-pyridine) (PS-b-P4VP) hybrid nanosheets. By adjusting the parameters, such as complexation ability, protonation degree, and complexation time, the NPs/polymer core-shell hybrid nanorods with uniform distribution of NPs and dumbbell-like hybrid nanorods with selective distribution of NPs at both ends can be obtained.