Microstructure of poly(methyl methacrylate- co -isopropyl acrylate) studied by C NMR.

Autor: Pasich, Marcin, Henzel, Norbert, Matlengiewicz, Marek
Předmět:
Zdroj: International Journal of Polymer Analysis & Characterization; 2016, Vol. 21 Issue 8, p728-748, 21p
Abstrakt: The distribution of configurational–compositional sequences of poly(methyl methacrylate-co-isopropyl acrylate) (PMMA/iPrA) has been determined from the carbonyl and β-CH2signals in the 100 MHz13C NMR spectra of the copolymer. The carbonyl signal provided information on configurational–compositional sequences up to heptads, whereas β-CH2signals offered complementary information on even sequences up to hexads. The assignment of the sequences to the respective signals was based on a comparison with the spectra of respective homopolymers, that is, PMMA and PiPrA followed by a computer simulation applying an incremental calculation of chemical shifts of the individual sequences. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index