Abstract

Qualitative absorption spectra of the amylose and the amylopectin molecules were calculated in the THz frequency range within the framework of a simple model of coupled oscillators. The simulations revealed that the absorption of the linear molecule (amylose) was approximately twice as strong as that of the branched molecule (amylopectin) with the same molecular weight. The differences in the fine structure of the obtained spectra were also described. The results can be used to determine the degree of polymer branching using THz spectroscopy.

Details

Title
Qualitative differences in the calculated THz absorption spectra of linear and branched polymers as exemplifed in amylose and amylopectin
Author
Semenova, A V 1 ; Vaks, V L 1 ; Guseva, Yu S 2 ; Babarina, D A 3 ; Morunova, S S 4 ; Vilkov, A S 4 

 Institute for Physics of Microstructures RAS, Academicheskaya Str., 7, Afonino, Nizhny Novgorod region, Kstovsky district, Kstovo region, 603087, Russia.; Faculty of Radiophysics, Lobachevsky State University of Nizhny Novgorod, Russia. 
 Faculty of Radiophysics, Lobachevsky State University of Nizhny Novgorod, Russia. 
 Nitel Joint-Stock Company, Nizhny Novgorod, Russia. 
 Nizhny Novgorod State Agricultural Academy, Nizhny Novgorod, Russia. 
Publication year
2020
Publication date
May 2020
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2557281439
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.