Hollow latex particles as submicrometer reactors for polymerization in confined geometries

Thorsten Brand, Kyle Ratinac, Jeffrey V. Castro, Robert G. Gilbert*

*Corresponding author for this work

Research output: Contribution to journalArticle

6 Citations (Scopus)


A method was developed for free-radical polymerization in the confines of a hollow latex particle. Hollow particles were prepared via the dynamic swelling method from polystyrene seed and divinylbenzene and had hollows of 500-1000 nm. So that these hollow poly(divinylbenzene) particles could function as submicrometer reactors, the particles were filled with a monomer (N-isopropylacrylamide) via the dispersion of the dried particles in the molten monomer. The monomer that was not contained in the hollows was removed by washing and gentle abrasion. Free-radical polymerization was then initiated by γ radiolysis in the solid state. Transmission electron microscopy showed that poly(N-isopropylacrylamide) formed in the hollow interior of the particles, which functioned as submicrometer reactors.

Original languageEnglish
Pages (from-to)5706-5713
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number22
Publication statusPublished - 15 Nov 2004
Externally publishedYes

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