Journal
ACS MACRO LETTERS
Volume 9, Issue 9, Pages 1280-1285Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.0c00194
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Funding
- ImPACT Program of the Council for Science, Technology and Innovation (Cabinet Office, Government of Japan)
- AIST-UTokyo Advanced Operando-Measurement Technology Open Innovation Laboratory (OPERANDO-OIL)
- JST-Mirai Program [JPMJMI18A2]
- JST CREST Grant [JPMJCR1992]
- Materials Education Program for the future leaders in the Research, Industry, and Technology (MERIT)
- Institute for Solid State Physics (ISSP) [H29-Ba0029, H30-Ba-0017, H31-Ba-0015]
- Oakbridge-CX in the Supercomputing Division, Information Technology Center, the University of Tokyo [gm79]
- [15K17905]
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In this study, molecular dynamics (MD) simulations were carried out on the uniaxial deformation of slide-ring (SR) networks with slidable cross-links to understand the relationship between the sliding of the cross-linking points and the Young's moduli of SR gels, which are lower than those of covalently cross-linked gels with the same cross-linking densities. The slidability of the cross-links in SR gels was characterized by the rate of change of the segment number between the cross-links, Nslide, estimated by the MD simulation. We have successfully constructed a molecular model for the elasticity of SR gels and proposed a simple equation for the Young's moduli of SR gels as a function of Nslide. The theoretical model was compared with the MD simulation results and experimental data.
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