The endogenous sugar structure of natural rubber was studied by mid-infrared(MIR)spectroscopy.The variable temperature deconvolution MIR spectra of endogenous sugar structures was studied by variable temperature MIR spectroscopy.The structural thermal denaturation of endog-enous sugars was studied by 2 D MIR spectroscopy.The results showed that in the range of 293 K～393 K,the absorption wave number corresponding to the endogenous sugar crystal structure changed significantly with the increase of the test temperature.There were significant differences in the thermal sensitivity of endogenous sugar structure and the speed order of functional group change.Under ther-mal disturbance factors,the change of endogenous sugar crystal structure was a key step in the entire endogenous sugar structure change.
关键词
天然橡胶/内生糖/中红外MIR光谱/变温MIR光谱/二维MIR光谱/热变性
Key words
natural rubber/endogenous sugars/mid-infrared MIR spectroscopy/variable tempera-ture MIR spectroscopy/2 D MIR spectroscopy/thermal denaturation
维普
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