Equalization of tension in the slide-ring gel networks measured by AFM

Tadahiro Odani, Yasuhiro Sakal, Yasushi Okumura, I. T.O. Kohzo

Research output: Contribution to conferencePaper

Abstract

The slide-ring gel (SR gel) is a new kind of gel in which polymer chains can pass through figure-of-eight cross-links consisting of α-cyclodextrin (α-CD). Therefore, polymer networks are supposed to equalize external stress (pulley effect). The purpose of this study is to observe the pulley effect of SR gel at the molecular level by atomic force microscopy (AFM). To capture α-CD in polyrotaxane with Au-coated AFM probe, cysteine was combined to α-CD through crosslinking reagents. We focused on the force curves with two peaks, and two characteristic forces FA and F B, where FA is the force at the first rupture and FB the force immediately after the first rupture event. The ratio of FB to FA (Rf) showed a symmetrical distribution for swollen SR gel, whereas random distributions were observed for a chemical gel. These results confirmed that the pulley effect equalized the stress distribution in swollen SR gel networks.

Original languageEnglish
Number of pages1
Publication statusPublished - Oct 18 2006
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: May 24 2006May 26 2006

Other

Other55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period5/24/065/26/06

Fingerprint

Atomic force microscopy
Gels
Pulleys
Cyclodextrins
Polymers
Crosslinking
Stress concentration

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Odani, T., Sakal, Y., Okumura, Y., & Kohzo, I. T. O. (2006). Equalization of tension in the slide-ring gel networks measured by AFM. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.

Equalization of tension in the slide-ring gel networks measured by AFM. / Odani, Tadahiro; Sakal, Yasuhiro; Okumura, Yasushi; Kohzo, I. T.O.

2006. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.

Research output: Contribution to conferencePaper

Odani, T, Sakal, Y, Okumura, Y & Kohzo, ITO 2006, 'Equalization of tension in the slide-ring gel networks measured by AFM' Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan, 5/24/06 - 5/26/06, .
Odani T, Sakal Y, Okumura Y, Kohzo ITO. Equalization of tension in the slide-ring gel networks measured by AFM. 2006. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.
Odani, Tadahiro ; Sakal, Yasuhiro ; Okumura, Yasushi ; Kohzo, I. T.O. / Equalization of tension in the slide-ring gel networks measured by AFM. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.1 p.
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