Comparative analysis of hollow and filled polyelectrolyte microcapsules templated on melamine formaldehyde and carbonate cores

Gleb B. Sukhorukov, Dmitry G. Shchukin, Wen Fei Dong, Helmut Möhwald, Valentin V. Lulevich, Olga I. Vinogradova

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)

Abstract

A comparative study of polyelectrolyte microcapsules templated on melamine formaldehyde (MF) and manganese carbonate (MnCO3) particles was performed using confocal Raman microscopy, scanning electron microscopy and by force measurements with an atomic force microscope. There is no significant difference between the properties of the shells templated on the MF and completely decomposable carbonate particles. In the case of capsules filled with polystyrene sulfonate (PSS), the MF oligomers formed a network complex with the polymer which resulted in a gel-like structure in the interior. The existence of such a structure was proved by characteristic MF and PSS bands in Raman spectra, the bulky morphology of the dried capsules and much stiffer resistance to applied force as compared with PSS-filled capsules templated on carbonate particles.

Original languageEnglish
Pages (from-to)530-535
Number of pages6
JournalMacromolecular Chemistry and Physics
Volume205
Issue number4
DOIs
Publication statusPublished - 4 Mar 2004
Externally publishedYes

Keywords

  • Capsule
  • Encapsulation
  • Nanolayers
  • Osmotic pressure
  • Polyelectrolytes

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