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Synthesis and characterization of triblock terpolymers with three potentially crystallisable blocks : Polyethylene-b-poly(ethylene oxide)-b-poly(epsilon-caprolactone)

Title data

Vivas, M. ; Contreras, J. ; López-Carrasquero, F. ; Lorenzo, Arnaldo T. ; Arnal, M. L. ; Balsamo, V. ; Müller, Alejandro J. ; Laredo, E. ; Schmalz, Holger ; Abetz, Volker:
Synthesis and characterization of triblock terpolymers with three potentially crystallisable blocks : Polyethylene-b-poly(ethylene oxide)-b-poly(epsilon-caprolactone).
In: Macromolecular Symposia. Vol. 239 (2006) Issue 1 . - pp. 58-67.
ISSN 1521-3900
DOI: https://doi.org/10.1002/masy.200690110

Official URL: Volltext

Abstract in another language

A first attempt was made to produce novel ABC triblock terpolymers with three potentially crystallisable blocks: polyethylene (PE), poly(ethylene oxide) (PEO), and poly(epsilon-caprolactone) (PCL). Polybutadiene-b-poly(ethylene oxide) diblock copolymers were synthesized by living anionic polymerization. Then, a non-catalyzed thermal polymerization of F-caprolactone from the hydroxyl end group of the PB-b-PEO diblock precursors was performed. Finally, hydrogenation by Wilkinson catalyst produced PE-b-PEO-b-PCL triblock terpolymers. Side reactions were detected that lead to the formation of undesired PCL-b-PEO diblock copolymers, however, these impurities were successfully removed by purification. A range of triblock terpolymers with PCL and PEO minor components were prepared. Topological restrictions on the PEI middle block prevented this block from crystallizing while the complex crystallization behavior of the PE and PCL blocks was documented by DSC and WAXS measurements.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: ISI:000239050400010
Keywords: crystallization; living anionic polymerization; triblock terpolymers
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Profile Fields > Advanced Fields > Polymer and Colloid Science
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Profile Fields
Profile Fields > Advanced Fields
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 16 Apr 2015 05:50
Last Modified: 02 Oct 2018 07:57
URI: https://eref.uni-bayreuth.de/id/eprint/10402