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| Study of three-level infrared spectrum of lotime |
| Wei Yingdong, Jiang Chaowei, Zhang Lina, Bai Man, Qi Zhezhen, WangXin |
| School of Chemical Engineering, Shijiazhuang University, Shijiazhuang 050035, China |
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Abstract The lotime molecular structure had been studied by infrared (IR) spectrum , which infrared absorption modes include ν■, ν■, δ■, νSi-O-lotime, ρ■ and νSi-C-lotime. The variable temperature-dependent infrared (TD-IR) spectrum of lotime were studied.The experimental results show,with the increase of the measuring temperature, the infrared absorption frequency and intensity of lotime νSi-C-lotime had changed obviously. Finally, two-dimensional infrared (2D-IR) spectrum of lotime νSi-C-lotime were studied. The study demonstrated the key roles of three-level infrared spectrum in the analysis of structure and thermal stability of important silicone materials (lotime).
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