Azeotropic atom transfer radical polymerization of hydroxyethyl methacrylate and (dimethylamino)ethyl methacrylate statistical copolymers and block copolymers with polystyrene

Kyle B. Guice, Yueh Lin Loo

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Statistical copolymers of hydroxyethyl methacrylate (HEMA) and (dimethylamino)ethyl methacrylate (DMAEMA) were synthesized by atom transfer radical polymerization (ATRP) at the azeotrope in N,N-dimethylformamide (DMF) with controlled molecular weights and molecular weight distributions (generally < 1.2). Since the polymerization takes place at the azeotrope, the polymer composition is fixed at the monomer feed composition (HEMA molar composition = 0.718), and there is little compositional drift with total monomer conversion. Poly(HEMA-co-DMAEMA) copolymers were also successfully synthesized from a polystyrene macroinitiator previously made by ATRP. Solution-cast thin films of polystyrene-b-poly(HEMA-co-DMAEMA) amphiphilic diblock copolymers exhibit ordered and periodic nanoscale structures with morphologies that depend on the relative volume fractions and casting solvent used.

Original languageEnglish (US)
Pages (from-to)2474-2480
Number of pages7
JournalMacromolecules
Volume39
Issue number7
DOIs
StatePublished - Apr 4 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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