Evidence map›Paper›PMID 33020488›Full record

ArticleNature communications2020

Enhanced polymer mechanical degradation through mechanochemically unveiled lactonization.

Yangju Lin, Tatiana B Kouznetsova, Chia-Chih Chang, Stephen L Craig

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
7.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 98 citations in OpenAlex.

  1. Review
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  5. Mechanochemistry: Fundamental Principles and Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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  12. Mechanochemical Approaches to Fundamental Studies in Soft-Matter Physics.Angewandte Chemie (International ed. in English) · 2024
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Yangju LinDepartment of Chemistry, Duke University, Durham, NC, 27708, USA. yangju.lin@duke.edu.ORCID http://orcid.org/0000-0001-6378-7179
Tatiana B KouznetsovaDepartment of Chemistry, Duke University, Durham, NC, 27708, USA.
Chia-Chih ChangDepartment of Chemistry, Duke University, Durham, NC, 27708, USA.
Stephen L CraigDepartment of Chemistry, Duke University, Durham, NC, 27708, USA. stephen.craig@duke.edu.ORCID http://orcid.org/0000-0002-8810-0369
Duke University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanical degradation of polymers is typically limited to a single chain scission per triggering chain stretching event, and the loss of stress transfer that results from the scission limits the extent of degradation that can be achieved. Here, we report that the mechanically triggered ring-opening of a [4.2.0]bicyclooctene (BCOE) mechanophore sets up a delayed, force-free cascade lactonization that results in chain scission. Delayed chain scission allows many eventual scission events to be initiated within a single polymer chain. Ultrasonication of a 120 kDa BCOE copolymer mechanically remodels the polymer backbone, and subsequent lactonization slowly (~days) degrades the molecular weight to 4.4 kDa, > 10× smaller than control polymers in which lactonization is blocked. The force-coupled kinetics of ring-opening are probed by single molecule force spectroscopy, and mechanical degradation in the bulk is demonstrated. Delayed scission offers a strategy to enhanced mechanical degradation and programmed obsolescence in structural polymeric materials.

Identifiers

PMID33020488
PMCPMC7536186
OpenAlexW3089638891

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.