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Synthesis and microstructural characterisation of copolymers of L-lactide and trimethylene carbonate prepared using the SmI2/Sm initiator system

Title data

Agarwal, Seema ; Puchner, Mario ; Greiner, Andreas ; Wendorff, Joachim H.:
Synthesis and microstructural characterisation of copolymers of L-lactide and trimethylene carbonate prepared using the SmI2/Sm initiator system.
In: Polymer International. Vol. 54 (October 2005) Issue 10 . - pp. 1422-1428.
ISSN 1097-0126
DOI: https://doi.org/10.1002/pi.1865

Official URL: Volltext

Abstract in another language

Polymerisation of trimethylene carbonate (TMC) and its copolymerisation with L-lactide (LA) using the SmI2/Sm initiator system is reported. The reactions were carried out at different temperatures to optimize the reaction conditions. Reactivity ratio values evaluated using the Kelen-Tiidos method were 7.24 and 0.25 for LA and TMC, respectively. Microstructure of the copolymers and its change with the reaction time is reported using 1D (H-1 and C-13) and 2D heteronuclear multiple-bond correlation NMR spectroscopic techniques. Electrospinning of the resulting copolymers was tried for the generation of fibres. Drastic deviations of the thermodynamic state from equilibrium were seen in the first heating cycle of the DSC trace of the electrospun fibres and are also reported here. (c) 2005 Society of Chemical Industry.

Further data

Item Type: Article in a journal
Refereed: No
Keywords: SmI2/Sm; trimethylene carbonate; L-lactide; copolymers; microstructure; electrospinning
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
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
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 09 Apr 2015 12:35
Last Modified: 09 Apr 2015 12:35
URI: https://eref.uni-bayreuth.de/id/eprint/9697