title: Impact properties of thiol-ene networks.
abstract: In this study, a series of thiol-ene networks having glass transition temperatures ranging from -30 to 60 °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.
authors.affiliation: School of Polymers and High Performance Materials, University of Southern Mississippi , 118 College Drive #5050, Hattiesburg, Mississippi 39406, United States.
authors.forename: Olivia D
authors.initials: OD
authors.lastname: McNair
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Janisse
authors.forename: David E
authors.initials: DE
authors.lastname: Krzeminski
authors.forename: Davis E
authors.initials: DE
authors.lastname: Brent
authors.forename: Trenton E
authors.initials: TE
authors.lastname: Gould
authors.forename: James W
authors.initials: JW
authors.lastname: Rawlins
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Savin
mesh_terms: D004548:Elasticity; D005898:Glass / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013314:Stress, Mechanical; D013438:Sulfhydryl Compounds / Q000737:chemistry*; D013696:Temperature; D044366:Transition Temperature
chemical_list: D011108:Polymers; D013438:Sulfhydryl Compounds