Micrcowave-assisted controlled ring-closing cyclopolymerization of diallyldimethylammonium chloride via the RAFT process

Title data

Assem, Yasser ; Greiner, Andreas ; Agarwal, Seema:
Micrcowave-assisted controlled ring-closing cyclopolymerization of diallyldimethylammonium chloride via the RAFT process.
In: Macromolecular Rapid Communications. Vol. 28 (2007) Issue 18-19 . - pp. 1923-1928.
ISSN 1521-3927
DOI: https://doi.org/10.1002/marc.200700377

Official URL:

Abstract in another language

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.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	TRANSFER RADICAL POLYMERIZATION; MICROWAVE IRRADIATION; POLYMERS; MONOMERS; STYRENE
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:	No
DDC Subjects:	500 Science > 540 Chemistry
Date Deposited:	07 Apr 2015 12:32
Last Modified:	24 Feb 2022 14:09
URI:	https://eref.uni-bayreuth.de/id/eprint/9665