Impact Properties of Thiol-Ene Networks
Polymers and High Performance Materials
In this study, a series of thiol-ene networks having glass transition temperatures ranging from -30 to 60 degrees C were synthesized utilizing several multifunctional thiols and two trifunctional alkenes. Thermomechanical properties were determined using dynamic mechanical analysis, and impact properties were determined using pendulum impact and drop impact testing protocols. The impact behavior was found to directly correlate to the glass transition temperature, except when the temperature at which the impact event occurs overlaps with the range of temperatures corresponding to the viscoelastic dissipation regime of the polymer. Additionally, we discuss insight into the spatial limitations of energy dissipation for thiol-ene network polymers and establish a platform for predictability in similar systems.
ACS Applied Materials and Interfaces
McNair, O. D.,
Janisse, A. P.,
Krzeminski, D. E.,
Brent, D. E.,
Gould, T. E.,
Rawlins, J. W.,
Savin, D. A.
(2013). Impact Properties of Thiol-Ene Networks. ACS Applied Materials and Interfaces, 5(21), 11004-11013.
Available at: http://aquila.usm.edu/fac_pubs/7942