Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 18, Pages 7620-7623Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja301928d
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Funding
- NSF [CHE-0748281 CAREER, TG-CHE090066]
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [0748281] Funding Source: National Science Foundation
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We demonstrate an accurate prediction of the micromechanical behavior of a single chain of cydopropanated polybutadiene, which is governed by rapid isomerization of the cyclopropane moieties at similar to 1.2 nN, from the force rate correlation of this reaction measured in a small series of increasingly strained macrocycles. The data demonstrate that a single physical quantity, force, uniquely defines the dynamics across length scales from >100 to <1 nm and that strain imposed through molecular design and that imposed by micromanipulation techniques have equivalent effects on the kinetics of a chemical reaction. This represents a new method of screening potential monomers for applications in stress-responsive materials that could also facilitate atomistic interpretations of single-molecule force experiments.
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