# Defining the Degree of Degradation in Plastics: Quantification of Accumulated Degradation Products and Leached Stabilizers for Predicting End-of-Life

https://mdr.nims.go.jp/datasets/de92717b-a20c-4bbb-b682-d631d33bd155

## File

- [1-s2.0-S0141391024004713-main.pdf](https://mdr.nims.go.jp/filesets/e4f15c34-8bbd-42cc-b947-9c827ad949db/download) ([Detail](https://mdr.nims.go.jp/filesets/e4f15c34-8bbd-42cc-b947-9c827ad949db.md))

## Id

de92717b-a20c-4bbb-b682-d631d33bd155

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-13T04:01:09.973175Z

## Updated at

2024-12-14T03:30:42.046676Z

## Published at

2024-12-14T23:30:33.838367Z

## Doi



## First published url

https://doi.org/10.1016/j.polymdegradstab.2024.111128

## Date published

2024-12-06

## Recorded date published

2025-2

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Defining the Degree of Degradation in Plastics: Quantification of Accumulated
    Degradation Products and Leached Stabilizers for Predicting End-of-Life'
  title_type: original
  lang: en

## Description

- description: 'Plastics degrade through various mechanisms, complicating the comprehensive
    chemical definition of degradation. As the accumulation of degraded products leads
    to sudden declines in material properties and triggers microplastic dispersion,
    a chemical degradation metric is essential for predicting plastics’ end-of-life.
    Here, we propose defining degradation by the weight ratio of “completely degraded
    polymer (CDP)” to pristine polymer, determined via pyrolysis mass spectrometry
    (MS). By simplifying the complex degradation evaluation into a straightforward
    framework of compositional analysis, a comprehensive degradation metric can be
    obtained without tracking individual degradation pathways. Moreover, by including
    stabilizers as system components, stabilizer leaching and polymer degradation
    can be concurrently visualized in the same framework. We demonstrate this approach
    in polyurethane films subjected to accelerated degradation tests and, by correlating
    the CDP-defined degradation metric with mechanical property evaluations, successfully
    identify the threshold degradation level that marks a material’s end-of-life.
    Furthermore, this method reveals deeper insights into degradation mechanisms:
    stabilizer leaching and polymer degradation are complementary processes that induce
    each other. This comprehensive degradation metric will also be crucial for grading
    recycled materials, promoting the circular economy in plastics.'
  description_type: abstract
  lang: und

## Creator

- name: Yusuke Hibi
  role: author
  orcid: https://orcid.org/0000-0003-4006-1070
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tsukasa Matsumoto
  role: author
- name: Masatoshi Midorikawa
  role: author
- name: Shiho Uesaka
  role: author
- name: Makoto Mizoshiri
  role: author
- name: Toshiyuki Tanimura
  role: author
- name: Masato Okada
  role: author
- name: Kimiyoshi Naito
  role: author
  orcid: https://orcid.org/0000-0002-3334-4876
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Masanobu Naito
  role: author
  orcid: https://orcid.org/0000-0001-7198-819X
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Microplastics
  schema: not_defined
- subject: Pyrolysis mass spectrometry
  schema: not_defined
- subject: Beyond carbonyl index
  schema: not_defined
- subject: Additive leaching
  schema: not_defined
- subject: Degradation metrics
  schema: not_defined
- subject: Reference-free quantitative mass spectrometry
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Polymer Degradation and Stability
  issn: '01413910'
  volume: '232'
  article_number: '111128'

## Conference



## Related item



## Funding

- identifier: 'JPMXP1122714694 '
  funder_name: Government of Japan Ministry of Education Culture Sports Science and
    Technology
- identifier: 'JP24K08520 '
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJCR19J3
  funder_name: Core Research for Evolutional Science and Technology

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## Fileset

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  filename: 1-s2.0-S0141391024004713-main.pdf
  content_type: application/pdf
  size: 3310390
  md5: fc60622506e33c59bff429d3a73d0f92

## Thumbnail

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filename: 1-s2.0-S0141391024004713-main.pdf