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Citation: WU SHIUH-CHING, KAO MIN-TZE. PHOSPHONITRILOCHLORIDE-PHENOLS CONDENSATION RESINS AND PLASTICS[J]. Acta Polymerica Sinica, ;1965, 7(4): 229-234. shu

PHOSPHONITRILOCHLORIDE-PHENOLS CONDENSATION RESINS AND PLASTICS

Received Date: 14 August 1964

The phosphonitrilochloride trimer (PNCl2)3 was synthesized．Condensation resins and molded asbestos plastics have been prepared from (PNCl2)3 and dihydric henols or (PNCl2)3 and the mixture of phenol and dihydric phenols．The oxidation decomposi-tion temperature of condensation resins was determined tO be 275—280℃．The water absorption of the molded plastics was found to be 0.37—1.0％ by weight，the flexuraI strength，482—772 kg／cm2 but impact strength only 3.00—5.25 kg-cm／cm2．The molded plastics have specific resistance to flame，and the water resistance was certainly improved，as compared to the phosphonitrilochloride polymers．
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