Monitoring the cure of unsaturated polyester resins by pressure DSC and FTIR‐PLC

Y. S. Yang, L. James Lee*, S. K.Tom Lo, P. J. Menardi

*此作品的通信作者

研究成果: Article同行評審

31 引文 斯高帕斯(Scopus)

摘要

A high pressure differential scanning calorimeter (DSC) and a Fourier transform infrared (FTIR) spectrometer with a prism liquid cell (PLC) were used to monitor the reaction kinetics of styrene‐unsaturated polyester resins at elevated curing temperatures and pressures. The thermal method is easy to perform but provides only an overall reaction exotherm. The spectroscopic method can detect the detailed reaction mechanism of copolymerizations. It is, however, less quantitative and the calculation is much more time‐consuming compared to the thermal analysis. Reactions of two unsaturated polyester resins with different molecular structure were measured by these two methods. Results showed that applying cure pressure on unsaturated polyester resins reduced the reaction rate but increased the final conversion. The styrene reaction was enhanced more than the polyester reaction at high curing temperatures.

原文English
頁(從 - 到)2313-2330
頁數18
期刊Journal of Applied Polymer Science
37
發行號8
DOIs
出版狀態Published - 4月 1989

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