Ionic liquids as additives for polylactic acid

Document Type

Conference Proceeding

Publication Date

9-29-2008

Abstract

In attempts to modify the degradation characteristics of polylactic acid (PLA) the addition of selected low molecular weight (MW) ionic liquids, at concentrations up to 5 wt%, are shown to result in enhanced thermal and hydrolytic degradation rates accompanied by plasticization and lubrication. Thermal degradation was studied via mass changes, MW changes by gel-permeation chromatography and viscosity changes, whereas hydrolytic degradation was followed by MW changes, scanning electron microscopy, solution pH and acid number changes and visual observations. The different effects of the two ionic liquids are explained in terms of their different chemical structures and interactions with the polymer.

Identifier

52349100948 (Scopus)

ISBN

[9781605603209]

Publication Title

Technical Papers Regional Technical Conference Society of Plastics Engineers

First Page

1683

Last Page

1687

Volume

3

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