Polymerization of Chlorine Substitution Products of Trimeric Phosphonitrilechloride with Alkoxides of α, α' - Xylenediol and Properties of the Polymer

Abstract

Chlorine substitution products of trimeric phosphonitrilechloride with alkoxides of α, α'- xylenediol P3N3Clx (X= 3 or 6) and P3N5Cl(6_2y)(OCH26F14H2O)y (Y=1-. '3) were synthesized in dioxane.Water vapor was detected by gas chromatography and polymers like plastics were obtained when P3N3(OCH26FleCH2OH)6 ortho [l], meta [2] and para [3] were heated in the temperature range from 25°C to 150°C.Then, 4 mole of water per 1 mole of [3] was found by weight loss method. Further, upon heating at about 200°C, formaldehyde was detected by gas chromatography.It was found that a part of ether bond, -Cl-12-0-CH2, changed into methylen bond, -CH, -. On the other hand, ring cleavege reaction occurred and polymers were obtained when P3N4Cl4 (0M-12-C6114: CH20) and P9N3Cl2(OCH26114H20)2 were heated at about 200°C, but no polymer was obtained with P3N3(OCH24-14H20)3.However, CO= bond absorption (IR) was observed in polymers, as a result of oxidation of a part of methylen bond. These polymers were stable toward water. Polymers having chlorine ion were unstable against dilute H2SO4, HNO3 or NaOH solutions, but they were stable toward flame. The thermal degradation of the polymers were studied by gas chromatography. It was found from the data obtained from a number of xylene, a little water and formaldehyde were detected at 320°C.