Evidence map›Paper›PMID 40939002›Full record

ArticleScience advances2025

Asymmetrical polyimide membranes with programmable polymer chain architectures for liquid hydrocarbon fractionation.

Weilin Feng, Fupeng Li, Jiaqi Li, Zhiyi Li, Lu Xu, Hukang Guo, Nanwen Li, Xinzhong Cao, Chuanjie Fang, Baoku Zhu and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Science advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

11 authors.

Weilin FengMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.ORCID 0009-0005-6759-774X
Fupeng LiMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.ORCID 0009-0006-7109-6072
Jiaqi LiMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.ORCID 0000-0003-3227-5749
Zhiyi LiMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.
Lu XuMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.
Hukang GuoMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.
Nanwen LiState Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China.ORCID 0000-0002-1441-0401
Xinzhong CaoInstitute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P.R. China.ORCID 0000-0001-5011-5912
Chuanjie FangMOE Engineering Research Center of Membrane and Water Treatment Technology, Zhejiang University, Hangzhou 310058, P.R. China.
Baoku ZhuMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.
Liping ZhuMOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310058, P.R. China.ORCID 0000-0002-1553-4190

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Conventional fractionation of liquid hydrocarbons relies on energy-intensive distillation. While organic solvent reverse osmosis provides an energy-efficient alternative, the challenge lies in engineering membranes with accurately tailored molecular differentiation for complex hydrocarbons. Here, we develop diverse fluorinated polyimide membranes featuring programmable polymer chain architectures for efficient hydrocarbon separation. By stoichiometry-controlled polycondensation, the chain packing and microporosity of synthesized polyimides are finely regulated, verified by molecular simulations. The corresponding asymmetrical membranes with defect-free thin layers of 100 to 250 nanometers are prepared via solution casting and thermal annealing steps. Such programmed membranes enable tunable permselectivity for hydrocarbons with less than 40 carbon atoms. The fractionation of kerosene-paraffin mixture in toluene is demonstrated through a two-stage process containing the optimized membranes. The cascade process remarkably enriches the C

Identifiers

PMID40939002
PMCPMC12429029

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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.