Synthesis of luminescent polymers in the UV light region from dimethacrylate monomer using novel quinoline dyes
JOURNAL OF APPLIED POLYMER SCIENCE(2019)
摘要
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. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47461.
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关键词
high conversion,luminescent polymers,photopolymerization,quinoline dyes,thermal analysis
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