ArticleNature communications2019
Molecular weight fractionation by confinement of polymer in one-dimensional pillar[5]arene channels.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Vapor-induced miscibility switching and optical response in a functional molecular liquid-pillar[5]arene system.Chemical science · 2026Article
- Fixing Pillar[5]Arene-Based Rotaxanes Into Epoxy Networks to Produce Toughened Epoxy Resins.Angewandte Chemie (International ed. in English) · 2026Article
- Supramolecular protection of isocyanates from water by encapsulation within hydrophobic crystalline pillar[n]arene macrocycles.Nature communications · 2026Article
- Pillar[5]arenes decorated with six-membered-ring aromatics at all the substitution positions.Chemical science · 2024Article
- State- and water repellency-controllable molecular glass of pillar[5]arenes with fluoroalkyl groups by guest vapors.Chemical science · 2022Article
- A pillar[5]arene-based covalent organic framework with pre-encoded selective host-guest recognition.Chemical science · 2021Article
- Supramolecular exfoliation of layer silicate clay by novel cationic pillar[5]arene intercalants.Scientific reports · 2021Article
- A Stretchable Pillararene-Containing Supramolecular Polymeric Material with Self-Healing Property.Molecules (Basel, Switzerland) · 2021Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Confinement of polymers in nano-spaces can induce unique molecular dynamics and properties. Here we show molecular weight fractionation by the confinement of single polymer chains of poly(ethylene oxide) (PEO) in the one-dimensional (1D) channels of crystalline pillar[5]arene. Pillar[5]arene crystals are activated by heating under reduced pressure. The activated crystals are immersed in melted PEO, causing the crystals to selectively take up PEO with high mass fraction. The high mass fractionation is caused by the greater number of attractive CH/π interactions between PEO C-H groups and the π-electron-rich 1D channel of the pillar[5]arene with increasing PEO chain length. The molecular motion of the confined PEO (PEO chain thickness of ~3.7 Å) in the 1D channel of pillar[5]arenes (diameter of ~4.7 Å) is highly restricted compared with that of neat PEO.
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Registered trials
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.