Colloidal Random Terpolymers: Controlling Reactivity Ratios of Colloidal Comonomers via Metal Tipping

Nicholas G. Pavlopoulos, Jeffrey T. Dubose, Erin D. Hartnett, Kookheon Char, Dong-Chul Pyun

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We report on a versatile synthetic method of preparing colloidal copolymers and terpolymers composed of dipolar Au@Co core-shell nanoparticles (NPs) in the backbone, along with semiconductor CdSe@CdS nanorod (NR), or tetrapod (TP) side chain groups. A seven-step colloidal total synthesis enabled the synthesis of well-defined colloidal comonomers composed of a dipolar Au@CoNP attached to a single CdSe@CdS NR, or TP, where magnetic dipolar associations between Au@CoNP units promoted the formation of colloidal co- or terpolymers. The key step in this synthesis was the ability to photodeposit a single AuNP tip onto CdSe@CdS NR or TP that enables selective seeding of a dipolar CoNP onto the AuNP seed. We show that the variation of the AuNP size directly controlled the size and dipolar character of the CoNP tip, where the size modulation of the Au and Au@CoNP tips is analogous to control of comonomer reactivity ratios in classical copolymerization processes.

Original languageEnglish (US)
Pages (from-to)950-954
Number of pages5
JournalACS Macro Letters
Volume5
Issue number8
DOIs
StatePublished - Aug 16 2016

ASJC Scopus subject areas

  • Polymers and Plastics
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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