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A NEW TOOL FOR DETERMINATION OF THE STAGE OF POLYMERIZATION OF THERMOSETTING POLYMERS
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JOURNAL OF POLYMER SCIENCE,
1952, 8 (06)
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[2]
CURE OF PHENOL-FORMALDEHYDE RESIN - PROGRESS DETERMINED BY ULTRASONIC WAVE PROPAGATION
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INDUSTRIAL AND ENGINEERING CHEMISTRY,
1953, 45 (12)
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