Selected article for: "atom transfer and radical polymerization"

Author: Geoghegan, Mark; Ruiz-Pérez, Lorena; Dang, Cheen C; Parnell, Andrew J; Martin, Simon J; Howse, Jonathan R; Jones, Richard A L; Golestanian, Ramin; Topham, Paul D; Crook, Colin J; Ryan, Anthony J; Sivia, Devinderjit S; Webster, John R P; Menelle, Alain
Title: The pH-induced swelling and collapse of a polybase brush synthesized by atom transfer radical polymerization.
  • Cord-id: qxjfd999
  • Document date: 2006_11_15
  • ID: qxjfd999
    Snippet: We have used neutron reflectometry to characterize the swelling behaviour of brushes of poly[2-(diethyl amino)ethyl methacrylate], a polybase, as a function of pH. The brushes, synthesized by the "" method of atom transfer radical polymerization, were observed to approximately double their thickness in low pH solutions, although the p is shifted to a lower pH than in dilute solution. The composition-depth profile obtained from the reflectometry experiments for the swollen brushes reveals a regio
    Document: We have used neutron reflectometry to characterize the swelling behaviour of brushes of poly[2-(diethyl amino)ethyl methacrylate], a polybase, as a function of pH. The brushes, synthesized by the "" method of atom transfer radical polymerization, were observed to approximately double their thickness in low pH solutions, although the p is shifted to a lower pH than in dilute solution. The composition-depth profile obtained from the reflectometry experiments for the swollen brushes reveals a region depleted in polymer between the substrate and the extended part of the brush.

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