Synthesis of luminescent polymers in the UV light region from dimethacrylate monomer using novel quinoline dyes
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Data
2019-05-15
Autores
Alarcon, Rafael Turra [UNESP]
dos Santos, Giovanny Carvalho [UNESP]
de Oliveira, Arthur Rossi [UNESP]
da Silva-Filho, Luiz Carlos [UNESP]
Bannach, Gilbert [UNESP]
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Resumo
This study aims at thermal and morphological features, as well as the degree of conversion these luminescent polymers obtained using a dimethacrylate monomer, and quinoline dyes as photoinitiator. The photoinitiators provide a fluorescent propriety to the final polymer. Thermal properties such as thermal stability, steps of mass loss, and glass transition are obtained by thermogravimetry-differential thermal analysis and derivative thermogravimetric and differential scanning calorimetry. Using the mid-infrared spectroscopy, it is possible to calculate the degree of conversion/rate of polymerization; the data indicate that the quinoline derivatives could be used as photoinitiators in lower concentration (0.1%) resulting in solid rigid polymers with higher conversion (74.24, 71.81, 66.36, and 61.09%). The morphological characteristics of polymers are analyzed by scanning electronic microscopy. Finally, solid ultraviolet–visible (UV–vis) analysis shows a bathochromic shift, due to the stabilization of the molecules in the solid state, compared to liquid UV–vis analysis. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47461.
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high conversion, luminescent polymers, photopolymerization, quinoline dyes, thermal analysis
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Journal of Applied Polymer Science, v. 136, n. 19, 2019.