Controllable oligomerization: defying step-growthkinetics in the polymerization of goldnanoparticles

Xuejun Cheng, Gui Zhao, Yan Lu, Miao Yan, Hong Wang * and Hongyu Chen *

Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering,

Jiangsu National Synergetic Innovation Center for Advanced Materials,

Nanjing Tech University, Nanjing 211816, China

Abstract:Random aggregation of nanoparticles typically leads to step-growth kinetics and thus a low concentration of dimers. Here, we report a one-step method to produce gold nanoparticle dimers by exploiting a polystyrene-block-poly (acrylic acid) shell. Methods to fine-tune the surface charge repulsion and swelling allow us to control the extent of aggregation, stopping selectively at dimers.

Chem. Comm.2018,54, 7746-7749. (2018年影响因子: 6.29)

论文链接：https://pubs.rsc.org/en/content/articlelanding/2018/cc/c8cc03424a