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- Title
Synthesis of diblock and triblock copolymers from butyl acrylate and styrene by reverse iodine transfer polymerization.
- Authors
Francisco J. Enríquez‐Medrano; Ramiro Guerrero‐Santos; Martín Hernández‐Valdez; Patrick Lacroix‐Desmazes
- Abstract
Well‐defined ABand BAdiblock copolymers were obtained by a one‐pot two‐step sequential block copolymerization by reverse iodine transfer polymerization (RITP), Abeing a poly(styrene) block and Ba poly(butyl acrylate) block. High monomer conversions during the formation of the first block avoided the purification steps before growing the second block. In a third sequential step, the diblock copolymers were further extended to synthesize ABAand BABtriblock copolymers. Furthermore, the synthesis of ABAand BABcopolymers in only two steps by RITP was investigated starting with the formation of the central block using 2,5‐di(2‐ethylhexanoylperoxy)‐2,5‐dimethylhexane as a difunctional initiator and then resuming the polymerization to grow the external blocks in a second step. The obtained copolymers were analyzed by size exclusion chromatography, transmission electron microscopy, and differential scanning calorimetry. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
- Subjects
COPOLYMERS; IODINE; POLYMERIZATION; CHROMATOGRAPHIC analysis; TRANSMISSION electron microscopy; CALORIMETRY
- Publication
Journal of Applied Polymer Science, 2011, Vol 119, Issue 4, p2476
- ISSN
0021-8995
- Publication type
Article