Evidence map›Paper›PMID 35132730›Full record

ArticleAngewandte Chemie (International ed. in English)2022

Mechanism of Spatial and Temporal Control in Precision Cyclic Vinyl Polymer Synthesis by Lewis Pair Polymerization.

Michael L McGraw, Liam T Reilly, Ryan W Clarke, Luigi Cavallo, Laura Falivene, Eugene Y-X Chen

Open access · hybridAbstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

4 citing papers in PubMed, 29 citations in OpenAlex.

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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

6 authors at 3 institutions in 3 countries.

Michael L McGrawDepartment of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.
Liam T ReillyDepartment of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.
Ryan W ClarkeDepartment of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.
Luigi CavalloKing Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, KAUST Catalysis Center, Thuwal, 23955-6900, Saudi Arabia.
Laura FaliveneUniversità di Salerno, Dipartimento di Chimica e Biologia, Via Papa Paolo Giovanni II, 84100, Fisciano (SA), Italy.
Eugene Y-X ChenDepartment of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.ORCID http://orcid.org/0000-0001-7512-3484
Colorado State University · USKing Abdullah University of Science and Technology · SAUniversity of Salerno · IT

Funding

Army Research Office W911NF1810435National Science Foundation NSF-1904962
6 · The paper itself

Abstract

In typical cyclic polymer synthesis via ring-closure, chain growth and cyclization events are competing with each other, thus affording cyclic polymers with uncontrolled molecular weight or ring size and high dispersity. Here we uncover a mechanism by which Lewis pair polymerization (LPP) operates on polar vinyl monomers that allows the control of where and when cyclization takes place, thereby achieving spatial and temporal control to afford precision cyclic vinyl polymers or block copolymers with predictable molecular weight and low dispersity (≈1.03). A combined experimental and theoretical study demonstrates that cyclization occurs only after all monomers have been consumed (when) via conjugate addition of the propagating chain end to the specific site of the initiating chain end (where), allowing the cyclic polymer formation steps to be regulated and executed with precision in space and time.

Indexed as

Cyclic PolymersLewis Pair PolymerizationPrecision Polymer Synthesis

Identifiers

PMID35132730
PMCPMC9304268
OpenAlexW4210945647

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.