Titelangaben
Assem, Yasser ; Greiner, Andreas ; Agarwal, Seema:
Micrcowave-assisted controlled ring-closing cyclopolymerization of diallyldimethylammonium chloride via the RAFT process.
In: Macromolecular Rapid Communications.
Bd. 28
(2007)
Heft 18-19
.
- S. 1923-1928.
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.200700377
Abstract
The present studies provide the first example of controlled free radical polymerization of a cyclopolymerizing monomer, i.e. diallyldimethylammonium chloride (DADMAC) via reversible addition fragmentation chain transfer (RAFT) chemistry in the presence of trithiocarbonate agent in aqueous solution at 60 degrees C under microwave irradiation. The polymers poly(diallyldimethylammonium chloride), PDADMAC] were soluble in water characterization of the polymers was achieved via NMR spectroscopy. The cyclization reactions during DADMAC polymerization under microwave! irradiation attained higher conversions at each time interval as compared to thermal heating. The rate enhancements till around 520% were seen for some reactions. High molecular weight PDADMAC with narrow poly-dispersities (approaching PDI approximate to 1.05) could be made using microwave irradiation.
Weitere Angaben
Publikationsform: | Artikel in einer Zeitschrift |
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Begutachteter Beitrag: | Ja |
Keywords: | TRANSFER RADICAL POLYMERIZATION; MICROWAVE IRRADIATION; POLYMERS; MONOMERS; STYRENE |
Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II |
Titel an der UBT entstanden: | Nein |
Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
Eingestellt am: | 07 Apr 2015 12:32 |
Letzte Änderung: | 24 Feb 2022 14:09 |
URI: | https://eref.uni-bayreuth.de/id/eprint/9665 |