Evidence map›Paper›PMID 36535898›Full record

ArticleAngewandte Chemie (International ed. in English)2023

Programming Photodegradability into Vinylic Polymers via Radical Ring-Opening Polymerization.

Phuong T Do, Berwyck L J Poad, Hendrik Frisch

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
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

7 citing papers in PubMed.

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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

3 authors.

Phuong T DoSchool of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD-4000, Australia.
Berwyck L J PoadSchool of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD-4000, Australia.
Hendrik FrischSchool of Chemistry and Physics, Queensland University of Technology, 2 George Street, Brisbane, QLD-4000, Australia.ORCID http://orcid.org/0000-0001-8490-5082

Funding

Australian Research Council DE200101096Australian Research Council LE220100031
6 · The paper itself

Abstract

Incorporation of photolabile moieties into the polymer backbone holds promise to remotely-control polymer degradation. However, suitable synthetic avenues are limited, especially for radical polymerizations. Here we report a strategy to program photodegradability into vinylic polymers by exploiting the wavelength selectivity of photocycloadditions for radical ring-opening polymerization (rROP). Irradiation of coumarin terminated allylic sulfides with UVA light initiated intramolecular [2+2] photocycloaddition producing cyclic macromonomers. Subsequent RAFT-mediated rROP with methyl acrylate yielded copolymers that inherited the photoreactivity of the cyclic parent monomer. Irradiation with UVB initiated efficient photocycloreversion of the coumarin dimers, causing polymer degradation within minutes under UVB light or days under sunlight exposure. Our synthetic strategy may pave the way to insert photolabile linkages into vinylic polymers, tuning degradation for specific wavelengths.

Indexed as

CoumarinIon Mobility-Mass SpectrometryPhotodegradable PolymerRing-Opening PolymerizationSunlight Degradable Polymer

Identifiers

PMID36535898
PMCPMC10108003

What OpenQuestion holds

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LicenceCC BY
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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.