Acceleration of conducting polymer-coated latex particles as projectiles in hypervelocity impact experiments

Burchell, Mark J. and Cole, Mike and Lascelles, S.F. and Khan, M.A. and Barthet, C. and Wilson, S.A. and Cairns, D.B. and Armes, Steven P. (1999) Acceleration of conducting polymer-coated latex particles as projectiles in hypervelocity impact experiments. Journal of Physics D-Applied Physics, 32 (14). pp. 1719-1728. ISSN 0022-3727 . (The full text of this publication is not available from this repository)

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Official URL
http://dx.doi.org/doi: 10.1088/0022-3727/32/14/325

Abstract

A series of sterically-stabilized polystyrene latex particles in the size range 0.1-5.0 mu m have been coated with ultrathin (<50 nm) overlayers of either polypyrrole, polyaniline or poly(3,4-ethylenedioxythiophene). In each case the conducting polymer overlayer allows the latex particles to acquire surface charge and hence be accelerated up to hypervelocities (>1 km s(-1)) using a Van de Graaff accelerator. These coated latexes have two main advantages compared to the sterically-stabilize polypyrrole particles of 0.1-0.3 mu m diameter reported previously. First, a wider particle size range can be accessed. Second, the particle size distributions of the coated latexes are much narrower than those of the pure polypyrrole particles reported earlier. Preliminary studies confirm that, after charging and acceleration, these conducting polymer-coated latex particles have very similar mass-velocity profiles to those reported for colloidal iron particles in the hypervelocity literature. The hypervelocity impact generated ionization has been measured for latex spheres impacting copper targets. This is compared to previous work for impact ionization by iron particles, thus demonstrating the ability to study the dependence of impact ionization on widely different projectile materials.

Item Type: Article
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Centre for Astrophysics and Planetary Sciences
Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Mark Burchell
Date Deposited: 13 Jun 2009 13:31
Last Modified: 11 Apr 2014 15:00
Resource URI: http://kar.kent.ac.uk/id/eprint/5019 (The current URI for this page, for reference purposes)
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