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YANG Guisheng, LU Fengcai. POLYCAPROLACTAM MODIFIED BY POLYPHENYLQUINOXALINE*[J]. Chinese Journal of Polymer Science,
;1990, 8(1): 87-92.
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Three polycaprolactam samples modified by 0.05—0.50% polyphenylquinoxaline(PPQ)by weight were prepared.Their structure and mechanical properties were characterized by FT-IR, SEM, density, tensile, impact, DTAand visco-elastic method, PPQ induced the formation of "crystal grains" distributed evenly over nylon spherulites in modified samples, which were observed for the first time, and strengthened modified samples. Modified nylons had higher crystallinities, higher Tg, more nearly perfect spherulites than MC nylon itself,and showed typical reinforcing effect on mechanical properties.
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