发明授权
EP2013262B1 TWO STEP PREPARATION OF RANDOM POLYOXADIAZOLE COPOLYMER AND ARTICLES RESULTING THEREFROM 有权
统计聚二共聚物在两步,第由其制成的研制

TWO STEP PREPARATION OF RANDOM POLYOXADIAZOLE COPOLYMER AND ARTICLES RESULTING THEREFROM
摘要:
In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in more than one step.
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