A general strategy to synthesize chemically and topologically anisotropic Janus particles

Jun Bing Fan, Yongyang Song, Hong Liu, Zhongyuan Lu, Feilong Zhang, Hongliang Liu, Jingxin Meng, Lin Gu, Shutao Wang, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

51 Citations (Scopus)

Abstract

Emulsion polymerization is the most widely used synthetic technique for fabricating polymeric particles. The interfacial tension generated with this technique limits the ability to tune the topology and chemistry of the resultant particles. We demonstrate a general emulsion interfacial polymerization approach that involves introduction of additional anchoring molecules surrounding the microdroplets to synthesize a large variety of Janus particles with controllable topological and chemical anisotropy. This strategy is based on interfacial polymerization mediated by an anchoring effect at the interface of microdroplets. Along the interface of the microdroplets, the diverse topology and surface chemistry features of the Janus particles can be precisely tuned by regulating the monomer type and concentration as well as polymerization time. This method is applicable to a wide variety of monomers, including positively charged, neutrally charged, and negatively charged monomers, thereby enriching the community of Janus particles.

Original languageEnglish
Article numbere1603203
Number of pages8
JournalScience Advances
Volume3
Issue number6
DOIs
Publication statusPublished - 2 Jun 2017
Externally publishedYes

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