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Determination of the Coreactant Level in Crosslinked Polyurethane System by FTIR
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作者 zheng chen zhou kat chen gao-bin 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2018年第S1期19-20,共2页
Infrared spectrum is a general quantitation method which can be used to determine the concentration of a certain component in mixture.We proposed that it could also be used to determine the coreactant level of a react... Infrared spectrum is a general quantitation method which can be used to determine the concentration of a certain component in mixture.We proposed that it could also be used to determine the coreactant level of a reactive system.A two-part polyurethane film was used as a model system.The results showed that the height ratio of ring mode signal in urea and C—O signal in polyester polyol can be used to calculate the ratio of the two reactants.The assignments of the peaks were studied by in-situ reaction monitoring with moisture level changes and deuteration methods.The applicable conditions of this calibration curves were also discussed. 展开更多
关键词 Infrared spectrum Two-part POLYURETHANE In-situ reaction MONITOR DEUTERATION experiment
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