Investigating the influence of stress on UV-induced degradation in cellulose acetate: A comprehensive experimental characterization

Document Type

Article

Publication Date

12-1-2024

Abstract

Renewable and degradable polymers have emerged in everyday applications ranging from mundane eating utensils to high-tech medical devices. However, the current literature lacks a thorough experimental characterization of the mechanical behavior change due to degradation. In this work, we characterize the microscopic chemical changes due to photo-degradation and resulting stress effects on the mechanical behavior of cellulose acetate, a renewable and degradable polymer that is used in various consumer products. Specifically, we photo-degrade this polymer under (i) traction-free conditions and (ii) under applied stress. A key finding of this work is that upon photo-degradation, this material undergoes chain scission, which affects its mechanical properties and may be further affected by the applied stress.

Identifier

85205465909 (Scopus)

Publication Title

International Journal of Solids and Structures

External Full Text Location

https://doi.org/10.1016/j.ijsolstr.2024.113086

ISSN

00207683

Volume

305

Grant

CMMI-1751520

Fund Ref

National Science Foundation

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