Evidence map›Paper›PMID 38732657›Full record

ArticlePolymers2024

Crown Ether Copolymerized Polyimide Film: Enhanced Mechanical, Thermal Properties and Low Dielectric Constant under High Frequency.

Heming Li, Xinming Wang, Ziyang Ding, Weiguo Gao, Yan Liu, Ke Ma, Zhizhi Hu, Yongqi Wang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Polymers, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. SLA-Printed BaTiOACS omega · 2025
    Article
  2. 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

8 authors.

Heming LiSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Xinming WangSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Ziyang DingSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Weiguo GaoSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Yan LiuSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Ke MaSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Zhizhi HuSchool of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China.
Yongqi WangLiaoning Agricultural Technical College, Yingkou 115009, China.

Funding

academy level project LnzkB202314Education Department of Liaoning Province LJKMZ20220660Scientific Research Fund of Liaoning Provincial Education Department LJKMZ20222107University of Science and Technology Liaoning Talent Project Grants 6003000322
6 · The paper itself

Abstract

Polymer materials with a low dielectric constant and low dielectric loss have the potential to be applied to high-frequency signal transmissions, such as mobile phone antennas and millimeter wave radars. Two types of diamines, 4,4'-diamino-p-tetraphenyl (DPT) and crown ether diamine (CED), were prepared for ternary copolymerization with BPDA in this study. Cross-links with molecular chains were formed, increasing molecular chain distance by utilizing rings of CED. The MPI films exhibit a good thermal performance with the increase in CED addition, with Tg > 380 °C and CTE from -4 × 10

Indexed as

crown etherdielectric constanthigh frequencypolyimide

Identifiers

PMID38732657
PMCPMC11085621

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.