The effect of thiol and ene structures on thiol-ene networks: Photopolymerization, physical, mechanical and optical properties |
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Authors: | Qin Li |
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Affiliation: | School of Polymers and High Performance Materials, The University of Southern Mississippi, Hattiesburg, MS 39406, United States |
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Abstract: | The photopolymerization of four different types of ene monomers with both primary and secondary multifunctional thiols has been evaluated. To understand the effect of ene monomer structures on polymer properties, a comprehensive investigation of the basic physical, mechanical and optical properties was conducted for the secondary and primary thiol-ene networks. The results indicate that ene structure and functionality can significantly affect the rigidity and the physical and mechanical properties of the thiol-ene networks. The heat capacity in the rubber state correlates with the network crosslink density and flexibility of the ene component. Networks formed from the secondary thiol-ene systems are basically equivalent to those made from primary thiol-enes with respect to physical, mechanical and optical properties. The secondary thiol monomer samples evaluated were found to have exceptional storage stability and relatively low odor. |
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Keywords: | Thiol-ene Secondary thiol Structure-property relationship |
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