Toggle Main Menu Toggle Search

Open Access padlockePrints

Dissolution of Starch with Aqueous Ionic Liquid under Ambient Conditions

Lookup NU author(s): Professor David XieORCiD

Downloads


Licence

This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2017.

For re-use rights please refer to the publisher's terms and conditions.


Abstract

With increased awareness of global sustainability, there has been growing interest in the preparation of materials from natural, eco-friendly polymers (i.e., biopolymers). Nonetheless, despite their enormous application potential, biopolymers (starch, etc.) have a native semicrystalline structure with strong hydrogen bonding, and require use of solvents to improve their processability. However, the dissolution/processing of natural biopolymers such as starch often requires heating and thus significant energy input. Herein, we report an aqueous ionic liquid for fast and facile dissolution of starch, a typical semicrystalline natural polymer, under ambient conditions. The ionic liquid used is 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]). In particular, it is revealed that 0.15:1 mol/mol [C2mim][OAc]:water mixture disintegrates the sophisticated granule structure of native starch without apparently decreasing the molecular mass within 1 h at room temperature (i.e., 28 °C). In addition, this process did not result in any undesired derivatization. The discovery of this phenomenon could provide guidance for rationally designing “green” processes for chemical and biological engineering for the utilization of promising natural biopolymers.


Publication metadata

Author(s): Zhang B, Xie F, Shamshina JL, Rogers RD, McNally T, Halley PJ, Truss RW, Chen L, Zhao S

Publication type: Article

Publication status: Published

Journal: ACS Sustainable Chemistry & Engineering

Year: 2017

Volume: 5

Issue: 5

Pages: 3737-3741

Print publication date: 01/05/2017

Online publication date: 11/04/2017

Acceptance date: 08/04/2017

Date deposited: 23/05/2023

ISSN (electronic): 2168-0485

Publisher: American Chemical Society

URL: https://doi.org/10.1021/acssuschemeng.7b00784

DOI: 10.1021/acssuschemeng.7b00784


Altmetrics

Altmetrics provided by Altmetric


Share