Evidence map›Paper›PMID 40776437›Full record

ArticleSmall methods2025

Disentangling Adsorption and Absorption in Microporous Polymers.

Máté Füredi, Andrei Kolesnikov, Anqi Wang, Klara Burdova, Natan Abelian, Sunshine Iguodala, Bálint Fodor, Gennady Y Gor, Qilei Song, Stefan Guldin

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Small methods, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

10 authors.

Máté FürediDepartment of Chemical Engineering, University College London, London, WC1E 7JE, UK.ORCID https://orcid.org/0000-0002-4300-0591
Andrei KolesnikovOtto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA.
Anqi WangDepartment of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK.ORCID https://orcid.org/0000-0003-3409-823X
Klara BurdovaDepartment of Chemical Engineering, University College London, London, WC1E 7JE, UK.ORCID https://orcid.org/0009-0009-9627-0331
Natan AbelianDepartment of Chemical Engineering, University College London, London, WC1E 7JE, UK.ORCID https://orcid.org/0009-0000-6311-0547
Sunshine IguodalaDepartment of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK.ORCID https://orcid.org/0009-0001-8259-2518
Bálint FodorSemilab Co. Ltd, Budapest, 1117, Hungary.ORCID https://orcid.org/0000-0003-4984-9921
Gennady Y GorOtto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, 07102, USA.ORCID https://orcid.org/0000-0001-7455-1778
Qilei SongDepartment of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK.ORCID https://orcid.org/0000-0001-8570-3626
Stefan GuldinDepartment of Chemical Engineering, University College London, London, WC1E 7JE, UK.ORCID https://orcid.org/0000-0002-4413-5527

Funding

Engineering and Physical Sciences Research Council (EPSRC) EP/V0407078/1European Research Council (ERC) ERC-StG-PE8-NanoMMESNational Science Foundation CBET-1944495
6 · The paper itself

Abstract

Polymers of intrinsic microporosity (PIMs) are a unique class of soft materials, which, unlike hard materials such as zeolites or carbons, are capable of both vapor adsorption (nanopore filling) and absorption (polymer plasticization/swelling). While adsorption is governed by pore structure and surface functionalization, adsorption depends on the chemical composition of the matrix material. Since both adsorption and absorption increase sorbent mass (vapor uptake), gravimetric and volumetric characterization methods exhibit severe limitations in isotherm interpretation. Thus, distinguishing between vapor adsorption and absorption remains a key challenge for understanding sub-nanometer-scale processes, which play a crucial role in many emerging applications of PIMs, including gas separation, water purification, organic solvent nanofiltration, and electrochemical energy storage/conversion. Herein, an alternative approach is presented based on in situ ellipsometric read out and concurrent optical modeling of adsorption and absorption. Ellipsometry is highly sensitive to changes in thickness and optical density of the thin film sorbents, enabling the acquisition of both adsorption and absorption isotherms. This study showcases four PIM sorbents with varied material chemistry, responding to various vapors. Their ad-/absorption contributions are studied and disentangled experimentally, with nanopore confinement and swelling models based on classical physisorption and polymer Flory-like theory.

Indexed as

adsorptionellipsometric porosimetrymicroporous materialspolymersthin films

Identifiers

PMID40776437
PMCPMC12464648

What OpenQuestion holds

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Registered trials

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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.