Evaluating the Role of antioxidants in the stabilization of hydroxypropyl cellulose by ATR-FTIR Spectroscopy


Journal: Vol.12, No.2, Spring 2018 - Article 4   Pages :  93 Until 101



Article Code:
PCCC-2018-03-04-378

Authors:
Hossein Ahmadi: Art University of Isfahan - Conservation and Restoration
Shadpour Mallakpour: Isfahan University of Technology - Department of Chemistry
Alireza Koochakzaei: Art University of Isfahan - Conservation and Restoration


Article's abstract:

This study is aimed at evaluating the performance of tetrakismethylene-3-3,5-di-tert-butyl-4-hydroxyphenyl propionate methane S1010, tris2,4-di-tert-butylphenyl phosphite S1680 and ascorbic acid AA antioxidants in stabilization of hydroxypropyl cellulose HPC. For this purpose, a number of films with weight percent ratios of 0.4 w/w were prepared in a 1 isopropanol solution w/v. Then, the films underwent accelerated aging processes at the 3 light UV; 216hr, dry-heat 120°C; 240 hr and moist-heat 70°C; RH: 95; 240 hr conditions. During the aging processes, structural changes were studied using the attenuated total reflectance Fourier transform infrared ATR-FTIR spectroscopy and based on the defined destruction indices. In addition, changes in color of films were evaluated by colorimetry in CIELab system before and after the aging process. According to the obtained results, the S1010 phenolic antioxidant led to improvements in color and structure stabilization of HPC against environmental destructing factors in all three destruction processes of photooxidation, thermooxidation and hydrothermal.


Keywords:
Polymer degradation, Hydroxypropyl cellulose (HPC), Oxidation, Antioxidant, ATR-FTIR

References:


Article's file
Page view: 146
Article's download quantity : 27


Article System Login
Introduction

Manager-in-Chief:
Prof. Zahra Ranjbar
Editor-in-Chief:
Dr. Farahnaz Nourmohammadian
Assistant Editor:
Dr. Mozhgan Hosseinnezhad
ISSN:
2008-2134
ISSN (online):
2383-1790
Publisher:
Institute for Color Science and Technology (ICST)

Quick Access
Publications
E-Vote
What is your opinion about the manuscript subscription system of PCCC website?
Excellent
Good
Fair
Poor
Website Statistics
Page view:147
Online Visitors:9