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Inorganic polymers. IV. Reactions of poly(P‐phenylphosphonic imide). The replacement polymerization of poly(P‐phenylphosphonic imide) with piperazine
Author(s) -
Shaw R. A.,
Ogawa Takeshi
Publication year - 1970
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1970.070140612
Subject(s) - piperazine , imide , polymer chemistry , polymerization , polyimide , polymer , condensation polymer , chemistry , materials science , reagent , alkyl , organic chemistry , layer (electronics)
Poly(P‐phenylphosphonic imide) reacts with a variety of compounds containing reactive hydrogen atoms, due to the instability of the PNP linkage to such reagents. Utilization of this property of the polymer may provide convenient routes to prepare various types of P‐phenylphosphonic diamides, Ph(O)P(NH 2 )(NR′ 2 ), phosphonamidates, PhP(O)(NH 2 )(OR), etc. (R = H, alkyl, aryl, etc.). The reaction of the polyimide with piperazine results in a polymer containingstructural units. The polymer thus obtained is however only partially soluble in the usual organic solvents, and this insolubility is probably due to crosslinking catalyzed by piperazine. The product polymer was found to be thermoplastic.