Sulfonation of low-density polyethylene and its impact on polymer properties

Kazimi, M.R. and Shah, T. and Jamari, S.S.B. and Ahmed, I. and Faizal, C.K.M. (2014) Sulfonation of low-density polyethylene and its impact on polymer properties. Polymer Engineering and Science, 54 (11). pp. 2522-2530.

Full text not available from this repository.
Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

Sulfonation of polymers is of great importance for the packaging industry mainly due to its effect on the alteration of surface functionality of polymer films. In this study we customized liquid phase sulfonation of low-density polyethylene (LDPE) swelling the polymer by using a combination of polar and nonpolar solvents. Swollen polymer was treated with sulfuric acid of varying concentrations with continuous mixing for in-depth sulfonation of the polymer. Presence of cyclohexane and ethanol, as polar and nonpolar reagents, not only kept the batch under isothermal conditions but also homogenously influenced indepth functionalization of LDPE. The durability of the sulfonated polymer was determined by grinding the test samples 30 days after the reaction. Fourier transforminfrared spectroscopy indicated presence of functional group moieties, which is also supported by increase of 5 and 1.35 in density and sulfur contents of the polymer, respectively. Contact angle measurements indicate 30° decrease in values of the sulfonated polymer which corresponds with decrease in carbon to hydrogen ratio (from 5.9 to 5.3) and increase in sulfur to carbon ratio (up to 0.0184) resulting from the sulfonation of the polymer. Differential scanning calorimetery results indicate almost linear reduction in the crystallinity of LDPE with an increase in acid concentration used for the sulfonation reaction. © 2013 Society of Plastics Engineers.

Item Type: Article
Impact Factor: cited By 8
Uncontrolled Keywords: Aliphatic compounds; Carbon; Contact angle; Crystallinity; Differential scanning calorimetry; Durability; Polyethylenes; Sulfonation; Sulfur, Acid concentrations; Isothermal conditions; Low density polyethylene(LDPE); Non-polar solvents; Packaging industry; Polymer properties; Sulfonated polymers; Surface functionalities, Polymer films
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 25 Mar 2022 08:59
Last Modified: 25 Mar 2022 08:59
URI: http://scholars.utp.edu.my/id/eprint/31101

Actions (login required)

View Item
View Item