TY - JOUR
T1 - Single polymer chain rubber elasticity investigated by atomic force microscopy
AU - Nakajima, Ken
AU - Watabe, Hiroyuki
AU - Nishi, Toshio
N1 - Funding Information:
The authors are grateful to Prof M. Suzuki at Nagoya Institute of Technology for his great contribution in synthesizing end-functionalized polystyrene. The work was partly supported by National Institute of Advanced Industrial Science and Technology (AIST), Japan Chemical Innovation Institute (JCII) and New Energy Development Organization (NEDO) as one of the projects in the Nanotechnology Program by the Ministry of Economy, Trade, and Industry (METI) of Japan.
PY - 2006/3/22
Y1 - 2006/3/22
N2 - A method, which is called as 'nanofishing', enabled us to stretch a single polymer chain adsorbed on an Au(111) substrate with picking it at its two thiol-modified termini using atomic force microscope equipped with a gold-coated probe. A force-extension curve obtained for a single polystyrene chain in a Θ solvent (cyclohexane) showed a good agreement with a so-called worm-like chain model, and thus gave microscopic information about entropic elasticity. Solvent effects on the statistical properties of single polymer chains were also investigated. For example, the second virial coefficient in cyclohexane was determined at a single polymer basis, which was almost comparable with a simple Flory's lattice model.
AB - A method, which is called as 'nanofishing', enabled us to stretch a single polymer chain adsorbed on an Au(111) substrate with picking it at its two thiol-modified termini using atomic force microscope equipped with a gold-coated probe. A force-extension curve obtained for a single polystyrene chain in a Θ solvent (cyclohexane) showed a good agreement with a so-called worm-like chain model, and thus gave microscopic information about entropic elasticity. Solvent effects on the statistical properties of single polymer chains were also investigated. For example, the second virial coefficient in cyclohexane was determined at a single polymer basis, which was almost comparable with a simple Flory's lattice model.
KW - Atomic force microscopy
KW - Entropic elasticity
KW - Virial coefficient
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U2 - 10.1016/j.polymer.2005.12.092
DO - 10.1016/j.polymer.2005.12.092
M3 - Article
AN - SCOPUS:33644974312
VL - 47
SP - 2505
EP - 2510
JO - Polymer (United Kingdom)
JF - Polymer (United Kingdom)
SN - 0032-3861
IS - 7
ER -