Journal of Applied Polymer Science, ( ISI ), Volume (134), No (5), Year (2017-5) , Pages (1-13)

Title : ( Evaluation of interactions of biopolymers using dynamic rheological measurements: Effect of temperature and blend ratios )

Authors: Fataneh Behrouzian , Seyed Mohammad Ali Razavi , Ali Alghooneh ,

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Abstract

Herein, a robust scheme is defined to elaborate interaction behavior of biopolymers and the effect of temperature on it using dynamic rheological measurements. As a case study, sage seed gum-xanthan gum (SSG-XG) interaction at different ratios (1-0, 3-1, 1-1, 1-3, 0-1) and temperatures (10, 30, 50, 70, and 90 8C) were experimentally evaluated. SSG-XG of 3-1 showed the highest temperature tolerance of almost all rheological parameters and relaxation time in amplitude sweep and frequency sweep measure- ments, respectively. Higher elastic component and higher extent of temperature dependency of this parameter were observed with increasing SSG fraction. At high temperature, XG molecules in aqueous solution illustrated an ordered (helix) –disordered (coil) conformational transformation while SSG exhibited more rigidity at higher temperature. Only 3-1 and 1-1 SSG-XG at 50 8C showed synergistic interaction of A (stiffness parameter) among all blends, which suggested the use of 3-1 SSG-XG blend in systems where enhanced structure at high temperature is desirable.

Keywords

biopolymers and renewable polymers; blends; rheology
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@article{paperid:1059049,
author = {Behrouzian, Fataneh and Razavi, Seyed Mohammad Ali and Alghooneh, Ali},
title = {Evaluation of interactions of biopolymers using dynamic rheological measurements: Effect of temperature and blend ratios},
journal = {Journal of Applied Polymer Science},
year = {2017},
volume = {134},
number = {5},
month = {May},
issn = {0021-8995},
pages = {1--13},
numpages = {12},
keywords = {biopolymers and renewable polymers; blends; rheology},
}

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%0 Journal Article
%T Evaluation of interactions of biopolymers using dynamic rheological measurements: Effect of temperature and blend ratios
%A Behrouzian, Fataneh
%A Razavi, Seyed Mohammad Ali
%A Alghooneh, Ali
%J Journal of Applied Polymer Science
%@ 0021-8995
%D 2017

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