Abstract
AbstractAn investigation of the reaction of 4‐phenyl‐3‐buten‐4‐olide with benzylamine was conducted as a model for the polymerization, and some ethers and acidic solvents were found to be favorable reaction media for formation of the ring‐opened amide as the sole product. By using m‐cresol as the polymerization medium, linear polyamides having inherent viscosities up to 0.67 were readily prepared by the ring‐opening polyaddition of 4,4′‐oxydi‐p‐phenylenebis(3‐buten‐4‐olide) with aliphatic diamines at room temperature. These polymers were soluble in m‐cresol and gave transparent, flexible films by the solution casting technique. They did not show any melt temperature, and began to decompose at around 200°C, both in air and under nitrogen.
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