Crosslinked colloids with cyclopropenium cations

Spencer D. Brucks, Noam Y. Steinman, Rachel L. Starr, Abraham J. Domb, Luis M. Campos

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Chemical crosslinkers are commonly used to stabilize both natural and synthetic macromolecules, while providing opportunities to install functionality and modulate polymer architecture. Here, we introduce the aromatic cyclopropenium cation as a tri-functional crosslinker of secondary amine-containing polymers. The one-step crosslinking reaction is rapid and requires no subsequent purification. When dispersed in aqueous media, the crosslinked polymers form spherical nanoparticles with highly positive charge that is maintained even in alkaline conditions. This synthetic strategy will enable the incorporation of cyclopropenium into a wide variety of macromolecules.

Original languageEnglish
Pages (from-to)2641-2645
Number of pages5
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number23
StatePublished - 1 Dec 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Wiley Periodicals, Inc.


  • nanoparticles
  • nanotechnology
  • polyelectrolytes
  • polymer chemistry


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