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Authors Pospiech, D. ; Werner, S. ; Jehnichen, D. ; Komber, H. ; Friedel, P. ; Reuter, U. ; Funari, S. ; Perlich, .J. ; Voit, B.
Title Multifunctionalized methacrylate di -and triblock copolymers: synthesis and nanostructure
Date 23.05.2012
Number 31084
Abstract The introduction of functionalities into block copolymers opens a wide field of possibilities for subsequent reactions, for instance to stabilize the morphology or to create stable hybrids. Methacrylate-based di- and triblock copolymers were synthesized by sequential anionic polymerization. Allyl methacrylate was used to form the third block and as comonomer distributed randomly in one of the blocks of a diblock copolymer. Anionic polymerization with allyl methacrylate raised the polydispersity of poly(pentyl methacrylate-b-allyl methacrylate-b-pentyl methacrylate) slightly. The successful introduction of allyl functions was proven by NMR spectroscopy. Thus, the synthesis of triblock copolymers having a middle block with one reactive group in each repeating unit was achieved. The block copolymers are phase separated which was shown by SAXS, TEM and by a calculated phase diagram. The allyl functions could be converted into OH-functions by hydroboration raising the polarity of the respective block and thus, the state of phase separation.
Publisher Journal of Nanostructured Polymers and Nanocomposites
Identifier
Citation Journal of Nanostructured Polymers and Nanocomposites 8 (2012) 58-66
DOI http://www.jnpn.org/03,08,02,04.html
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