Effect of degassing on surfactant-free emulsion polymerizations of styrene mediated with RAFT

Julia Hartmann, Carl Urbani, Michael R. Whittaker, Michael J. Monteiro

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24 Citations (Scopus)

Abstract

The reversible addition-fragmentation chain transfer (RAFT)-mediated ab initio surfactant-free emulsion polymerizations of styrene using the degassing technique, was investigated. This emulsion was polymerized with ammonium persulfate (APS) in the absence of sodium dodecyl sulfate (SDS) and it was found that particle diameter was an order of magnitude lower than initial droplet size. The molecular weight was composed of two distinct peaks which included the peaks of particles containing poly-RAFT and those not containing poly-RAFT, respectively. The results show that applying the degassing technique to emulsion polymerization opens a new area of polymer synthesis and polymer colloidal properties.

Original languageEnglish
Pages (from-to)904-907
Number of pages4
JournalMacromolecules
Volume39
Issue number3
DOIs
Publication statusPublished - 7 Feb 2006
Externally publishedYes

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