# Room‐Temperature Material Recycling/Upcycling of Polyamide Waste Enabled by Cosolvent‐Tunable Dissolution Kinetics

https://mdr.nims.go.jp/datasets/910dc912-2433-4644-8521-017f93cc054a

## File

- [Angew Chem Int Ed - 2025 - Tanks - Room‐Temperature Material Recycling Upcycling of Polyamide Waste Enabled by (2).pdf](https://mdr.nims.go.jp/filesets/f1adc1b5-109e-4715-ad58-146307a5b840/download) ([Detail](https://mdr.nims.go.jp/filesets/f1adc1b5-109e-4715-ad58-146307a5b840.md))

## Id

910dc912-2433-4644-8521-017f93cc054a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-20T04:53:06.892879Z

## Updated at

2025-08-20T07:30:24.851848Z

## Published at

2025-08-20T07:18:31.276983Z

## Doi



## First published url

https://doi.org/10.1002/anie.202502474

## Date published

2025-07-28

## Recorded date published

2025-7-28

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Room‐Temperature Material Recycling/Upcycling of Polyamide Waste Enabled
    by Cosolvent‐Tunable Dissolution Kinetics
  title_type: original
  lang: en

## Description

- description: Polyamides (nylons) are a ubiquitous class of engineering plastics
    featuring good heat resistance and mechanical properties and are used in various
    industries ranging from automotive parts to textiles to packaging. They are resistant
    to many common solvents such as alcohols and hydrocarbons yet are susceptible
    to hydrolysis in acidic or alkaline solutions, making them difficult to recycle
    under mild conditions. In the present study, a mixed solvent composed of formic
    acid and chlorinated alkanes is found to rapidly dissolve a wide range of aliphatic
    and semi-aromatic nylons, in particular bio-based PA11, which was difficult to
    dissolve in the past due to its long alkyl segment. The regenerated polymers show
    no change in their chemical structures or properties. Furthermore, this facile
    dissolution-based recycling strategy is also ideal for recovering fillers, as
    demonstrated with short- and long-fiber composites, mica nanocomposites, and nylon/polypropylene
    layered films, achieving over 98% recovery of both polymer and fillers along with
    complete circulation of all solvents. This process has the potential to change
    the thermoplastic recycling landscape by making even conventional nylon composites
    more sustainable, and closing the loop for bio-based “renewable” nylons.
  description_type: abstract
  lang: en

## Creator

- name: Jonathon Tanks
  role: author
  orcid: https://orcid.org/0000-0002-0232-8240
  organization: National Institute for Materials Science
- name: Kenji Tamura
  role: author
  orcid: https://orcid.org/0000-0001-6578-0923
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Recycle
  schema: not_defined
- subject: Polyamide
  schema: not_defined
- subject: Cosolvent
  schema: not_defined
- subject: Room temperature
  schema: not_defined
- subject: formic acid
  schema: not_defined
- subject: chlorinated alkanes
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
  issn: '00448249'
  volume: '64'
  issue: '31'

## Conference



## Related item



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Fileset

- id: f1adc1b5-109e-4715-ad58-146307a5b840
  filename: Angew Chem Int Ed - 2025 - Tanks - Room‐Temperature Material Recycling
    Upcycling of Polyamide Waste Enabled by (2).pdf
  content_type: application/pdf
  size: 4856553
  md5: 7ab32b175928a43ed70d22d42e9429c5

## Thumbnail

fileset_id: f1adc1b5-109e-4715-ad58-146307a5b840
filename: Angew Chem Int Ed - 2025 - Tanks - Room‐Temperature Material Recycling Upcycling
  of Polyamide Waste Enabled by (2).pdf