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高分子学报 2009
ULTRASONIC ONLINE TRACKING OF REACTION-INDUCED PHASE SEPARATION
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Abstract:
On-line tracking of reaction-induced phase separation has been realized for the first time by using high frequency ultrasonic wave,which is based on the Rayleigh scattering of ultrasonic wave on the interface of a multiphasic system.The new technology was employed to track the curing reaction of epoxy resin in PEG medium.The investigation involved the effects of concentration,reaction medium,amount of curing agent and temperature on the reaction-induced phase separation.Based on an intensive analysis of spi...