pH-responsive properties of hollow polyelectrolyte microcapsules templated on various cores

Christophe D́jugnat, Gleb B. Sukhorukov

Research output: Contribution to journalArticlepeer-review

213 Citations (Scopus)

Abstract

Hollow polyelectrolyte microcapsules made of poly(allylamine hydrochloride) and sodium poly(styrene sulfonate), templated on various cores, manganese and calcium carbonate particles or polystyrene latexes, were investigated. The polyelectrolyte multilayers respond to a change of pH, leading to a swelling of the capsules in basic conditions and a further shrinking when the pH is reduced to acidic. The nature of the core and the subsequent dissolution process have an influence on this pH responsiveness, and the structuring effect of tetrahydrofuran on the multilayers has been demonstrated. Increasing the molecular weight of the polymers or the number of layers causes also a rigidification of the structure and modifies the pH response.

Original languageEnglish
Pages (from-to)7265-7269
Number of pages5
JournalLangmuir
Volume20
Issue number17
DOIs
Publication statusPublished - 17 Aug 2004
Externally publishedYes

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