Evidence map›Paper›PMID 42799471›Full record

ArticleACS central science2026

Direct Observation of Topologically Enhanced Interfacial Miscibility in Ring-Linear Polymers.

Seong Eun Kim, Dogyun Kim, Se Hwa Park, Tae Yeon Kong, June Hyuk Lee, Kyoung Taek Kim, So Youn Kim

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Article in ACS central science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0cells of the map it votes in
0citing papers in PubMed
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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

7 authors.

Seong Eun KimDepartment of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.ORCID https://orcid.org/0000-0003-0813-9456
Dogyun KimDepartment of Chemistry, College of Natural Science, Seoul National University, Seoul 08826, Republic of Korea.
Se Hwa ParkDepartment of Chemistry, College of Natural Science, Seoul National University, Seoul 08826, Republic of Korea.
Tae Yeon KongDepartment of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.ORCID https://orcid.org/0000-0002-3872-0893
June Hyuk LeeNeutron Science Division, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea.
Kyoung Taek KimDepartment of Chemistry, College of Natural Science, Seoul National University, Seoul 08826, Republic of Korea.ORCID https://orcid.org/0000-0002-4915-7602
So Youn KimDepartment of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.ORCID https://orcid.org/0000-0003-0066-8839

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclic polymers, lacking chain ends, exhibit unique behavior when blended with linear analogues. In such cyclic/linear mixtures, cyclic polymers permit chain threading, wherein linear chains penetrate the ring-like structure, increasing entropy and enhancing interfacial diffusion relative to linear/linear or cyclic/cyclic blends. Although theory has long predicted this topological entropy-driven miscibility, experimental evidence has been scarce due to challenges in synthesis and characterization. Here, we provide the first direct experimental validation using neutron reflectivity on cyclic and linear poly-(lactic acid) (PLA) analogues assembled as bilayers of higher-molecular-weight, isotopically labeled linear PLA in thin films. The results show that topological entropy markedly reduces the effective interaction parameter, χ

Identifiers

PMID42799471
PMCPMC13614040

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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.