Determination of Propagation Rate Coefficient for the Polymerization of N -Vinylpyrrolidone in Aqueous Solution by Pulsed Electron Polymerization and Size Exclusion Chromatography.

Autor:	Bartoszek N; Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland.; BioNanoPark laboratories of Lodz Regional Park of Science and Technology, Dubois 114/116, 93-465 Lodz, Poland., Sawicki P; Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland., Kadłubowski S; Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland.; European Centre of Bio- and Nanotechnology, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland., Ulański P; Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland.; European Centre of Bio- and Nanotechnology, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland., Rosiak JM; Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland.; European Centre of Bio- and Nanotechnology, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
Jazyk:	angličtina
Zdroj:	ACS macro letters [ACS Macro Lett] 2014 Jul 15; Vol. 3 (7), pp. 639-642. Date of Electronic Publication: 2014 Jun 16.
DOI:	10.1021/mz500294c
Abstrakt:	A new method for determination of a propagation rate coefficient in radical polymerization, pulsed electron polymerization-size exclusion chromatography (PEP-SEC), has been tested on N -vinylpyrrolidone in water and shown to yield results very similar to those obtained by the well-established pulsed laser polymerization-size exclusion chromatography (PLP-SEC). A potential advantage of PEP-SEC is its applicability to studying polymerizations in nontransparent systems and lack of any additives. Series of nanosecond pulses of high-energy electrons from an accelerator generate radicals which initiate polymerization. Further analysis of the samples and data processing are the same as in PLP-SEC. The described technique can be potentially developed into a method complementary and/or comparative to PLP-SEC.
Databáze:	MEDLINE
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