Accession Number:

ADA591309

Title:

Mechanochemically-Active Polymer Composites

Descriptive Note:

Final rept. 15 Jun 2007-14 Jun 2013

Corporate Author:

ILLINOIS UNIV AT URBANA-CHAMPAIGN

Report Date:

2013-09-13

Pagination or Media Count:

27.0

Abstract:

Progress during the prior funding period includes understanding of fracture-induced mechanophore activation, development of a new computational model for predicting mechanochemical phenomena, and the development of new analytical techniques to study mechanochemistry. These studies are making it possible to compare the theoretical and experimental threshold forces that induce mechanochemistry. Other mechanophore advances include a detailed structure-activity relationship for a series of cyclobutane mechanophores and force-induced Diels-Alder cycloreversions. Experimental methods have been developed to characterize the mechanisms of macroscopic force transfer from a bulk solid polymer to linked mechanophores based on studies that address mechanochemical activation under tensile loading, shear, and fracture behavior.

Subject Categories:

  • Physical Chemistry
  • Polymer Chemistry
  • Laminates and Composite Materials
  • Plastics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE