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Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
Published on: January 19, 2016
Effect of various chemical disinfectants on the mechanical properties of elastomeric chains
Thasnim Jawhar Kallayil1, Francis P G1, Joseph Sebastian1
1Department of Orthodontics & Dentofacial Orthopaedics, Mar Baselios Dental College, Kothamangalam, Ernakulam, Kerala, India.
Abstract:
Different cleaning procedures affected the mechanical characteristics of elastomeric chains. Hence, 255 samples, divided into 17 groups of 15 samples each, were tested for bacterial contamination and tensile strength using five disinfection procedures. Colonies on culture plates indicated contamination, while the universal testing machine determined ultimate tensile strength. The samples disinfected with 70% isopropyl alcohol (IPA) remained contaminated, as shown by colony growth, even though there was a statistically significant reduction in colonies compared to the controls. All samples examined after 1 and 10 cycles in the disinfectants had higher ultimate tensile strengths than controls.
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