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International Journal of Polymer Analysis and Characterization Volume 18, 2013 - Issue 2
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Original Articles

Sequence Distribution of Poly(methyl acrylate) by Incremental Calculation

Marcin Pasich Institute of Chemistry, Department of Environmental Chemistry and Technology, Silesian University, Katowice, Poland; Institute for Engineering of Polymer Materials and Dyes in Torun, Paint and Plastics Department, Gliwice, Poland
,
Norbert Henzel Institute of Electronics, Silesian Technical University, Gliwice, Poland
&
Marek Matlengiewicz Institute of Chemistry, Department of Environmental Chemistry and Technology, Silesian University, Katowice, PolandCorrespondence[email protected]
Pages 105-118 | Received 22 Aug 2012, Accepted 07 Sep 2012, Published online: 11 Feb 2013
 
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Abstract

The carbonyl signal in the 100 MHz 13C NMR spectra of poly(methyl acrylate) (PMA) recorded in benzene-d6 exhibits configurational sensitivity up to pentads, and the signal of backbone β-CH2 carbons shows splitting up to configurational hexads with traces of octads. Assignment of the sequences to respective signals was confirmed by computer simulation of both carbonyl and methylene signals applying a method of incremental calculation of chemical shifts of individual sequences and second-order Markov statistics for sequence probabilities.

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