Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
The stretchability of polymeric materials is critical to many applications such as flexible electronics and soft robotics, yet the stretchability of conventional cross-linked linear polymers is limited by the entanglements between polymer chains. We show using molecular dynamics simulations that cross-linked ring polymers are significantly more stretchable than cross-linked linear polymers. Compared to linear polymers, the entanglements between ring polymers do not act as effective cross-links. As a result, the stretchability of cross-linked ring polymers is determined by the maximum extension of polymer strands between cross-links, rather than between trapped entanglements as in cross-linked linear polymers. The more compact conformation of ring polymers before deformation also contributes to the increase in stretchability.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.128.237801 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unique halogen-π association detected in single crystals of C-N atropisomeric -(2-halophenyl)quinolin-2-one derivatives and the thione analogue.
Beilstein J Org Chem
September 2025
Chemistry and Materials Program, College of Engineering, Shibaura Institute of Technology, 3-7-5 Toyosu, Kohto-ku, Tokyo 135-8548, Japan.
In single crystals of C-N atropisomeric -(2-halophenyl)quinolin-2-one and the thione analogue, a unique association based on a halogen-π interaction was detected. In racemic and optically pure -(2-bromo- or 2-chlorophenyl)quinolin-2-ones, homochiral layered polymers, which consist of ()- or ()-atropisomers, were formed through intermolecular halogen-π association. The halogen-π association in the racemates is due to a halogen bond (C-X···π) between a σ-hole on the halogen atom and a π-electron on the quinolinone benzene ring, while that in optically pure forms is caused by an n-π* interaction between a lone electron pair on the halogen atom and a π* orbital of the quinolinone.
View Article and Find Full Text PDFSemicrystalline Polymer Donors for Simultaneous Dark Current Suppression and Photocurrent Enhancement in High-Performance Photomultiplication-Type Organic Photodetectors.
ACS Appl Mater Interfaces
September 2025
Department of Organic and Nano Engineering, and Human-Tech Convergence Program, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
Photomultiplication-type organic photodetectors (PM-type OPDs) have recently attracted attention. However, the development of polymer donors specifically tailored for this architecture has rarely been reported. In this study, we synthesized benzobisoxazole-based polymer donors incorporating alkylated π-spacers that simultaneously enhance photocurrent density () and suppress dark current density (), leading to high responsivity () and specific detectivity (*).
View Article and Find Full Text PDFSynergistic Effect of Nitrogen Doping and Textural Design on Metal-Free Carbide-Derived Carbon Electrocatalysts for the ORR.
ACS Appl Mater Interfaces
September 2025
Instituto de Cerámica y Vidrio (ICV-CSIC), C/Kelsen 5, 28049 Madrid, Spain.
The oxygen reduction reaction (ORR) is critical to energy conversion technologies and requires efficient catalysts for superior performance. Herein, nitrogen-doped carbide-derived carbon (N-CDC) catalysts are prepared using novel engineered molecular architectures based on polymer-derived ceramic technology. The obtained catalyst materials show a surface N concentration of >5 wt % and a hierarchically porous structure, resulting in a specific surface area of over 2000 m g.
View Article and Find Full Text PDFLight-activated antimicrobial polymers with citronellol-enhanced bacterial accumulation for on-demand disinfection.
J Mater Chem B
September 2025
School of Materials Science and Engineering, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, 510640, China.
Antibacterial photodynamic therapy offers a promising approach for combating both susceptible and multidrug-resistant pathogens. However, conventional photosensitizers have limitations in terms of poor binding specificity and weak penetration for pathogens. In this study, we developed synergistic photobactericidal polymers that integrate hydrophilic toluidine blue O (TBO) with the lipophilic penetration enhancer citronellol (CT).
View Article and Find Full Text PDFRegioselective Ring-Opening Polymerization of Asymmetric Cyclic Dimers for Polyester-Based Alternating Copolymers.
Chemistry
September 2025
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
Sequence-controlled polyester-based alternating copolymers have attracted significant interest due to their biocompatibility, biodegradability, closed-loop recyclability, and hydrolytic degradability, offering broad potential in biomedical and sustainable materials. Among the available strategies, regioselective ring-opening polymerization (ROP) of asymmetric cyclic di(thio)esters and cyclic(ester-amide)s has emerged as a promising approach for constructing alternating copolymers with precise sequence- and stereo-control, structural diversity, and tunable properties. This review classifies asymmetric cyclic monomers into two categories: (1) monomers with two aliphatic ester bonds, where regioselectivity is mainly dictated by steric differences and typically requires tailored metal catalysts; and (2) monomers with chemically distinct reactive sites (e.
View Article and Find Full Text PDF