Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 23, 2011
Previous Article Next Article

Mechanochemically triggered bond formation in solid-state polymers

Author affiliations


Polybutadiene was functionalized with dibromo-, dichloro-, and bromochloro-carbene to give gem-dihalocyclopropanated (gDHC) polymers, in which the gDHCs act as mechanically activated functional groups or mechanophores. The polymers were extruded to determine the mechanophore activity in the solid state. The extent of gDHC ring opening depends on both the polymer composition and the macroscopic shear stress, ranging from 6.0% to over 30% after an hour of extrusion. In addition, the 2,3-dibromoalkene formed from mechanical activation of the gem-dibromocyclopropane was found to undergo subsequent nucleophilic substitution by chloride in the solid state. The number of solid-state substitution reactions far exceeds the number of main-chain bonds broken, a finding with implications for the future use of mechanophores in self-strengthening or self-healing polymers.

Graphical abstract: Mechanochemically triggered bond formation in solid-state polymers

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 11 Nov 2010, accepted on 14 Jan 2011 and first published on 16 Feb 2011

Article type: Paper
DOI: 10.1039/C0JM03875J
Citation: J. Mater. Chem., 2011,21, 8460-8465
  •   Request permissions

    Mechanochemically triggered bond formation in solid-state polymers

    A. L. Black, J. A. Orlicki and S. L. Craig, J. Mater. Chem., 2011, 21, 8460
    DOI: 10.1039/C0JM03875J

Search articles by author