Journal
IEEE TRANSACTIONS ON NANOTECHNOLOGY
Volume 22, Issue -, Pages 628-633Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNANO.2023.3314922
Keywords
Raman spectroscopy; nanocomposite; UDMA-TEGDMA; gold nanorods; thermal-treatment; plasmonics
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The impact of heating and cooling cycles on a copolymer mixture of urethane dimethacrylate (UDMA) and triethylene glycol dimethacrylate (TEGDMA), with and without gold nanorod doping, was studied using in-situ Raman spectroscopy. The degree of conversion (DC) of the polymer was calculated based on the peak intensities of specific vibration bands. The influence of various factors on the calculated DC, such as gold nanorods, thermal cycles, excitation wavelength, and reference peak selection, was analyzed in detail.
The impact of heating and cooling cycles on a copolymer mixture of urethane dimethacrylate (UDMA) and triethylene glycol dimethacrylate (TEGDMA), with and without gold nanorod doping was studied by using in-situ Raman spectroscopy. The copolymer was made in a 3:1 ratio and 0.1236 m/m% concentration of 25 nm x 85 nm gold nanorods was added. Heating and cooling between 30 degree celsius and 140 degree celsius was applied and two distinct vibration bands at 1447 cm(-1) (C-H bond) and 1638 cm(-1) (methacrylate C = C stretching) were monitored using 532, 633 and 785 nm excitations. The degree of conversion (DC) of the polymer was calculated based on the peak intensities. The influence of the gold nanorods, single and multiple thermal cycles, excitation wavelength, and reference peak selection on the calculated DC were analyzed in detail.
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