有几家公司小规模生产,但均不成规模。( 2) 聚磷腈合成对原材料纯度和合成环境要求苛刻,生产成本过高,难于工业化。因此寻找合适的合成路线,降低产物成本,促进其实用化以及进一步开发新型聚磷腈功能材料,拓展其应用领域,仍然是今后聚磷腈材料发展的两个重要方向。
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