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落叶风尘金虫 (知名作家)
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| Qther research groups have synthesized aromatic polymers capable of a high uptake of phosphoric acid, but with improved processability. Benicewicz and co-workers have reported the synthesis of PBI in poly(phosphoric acid), followed by casting of the membrane directly from the reaction vessel.Phosphoric acid is then produced by the hydrolysis of poly(phosphoric acid). This method of imbibing produces strong PBI films with much higher phosphoric acid uptake than the conventional soaking method. Gourdoupi and co-workers have synthesized poly-(arylene ether)s that contain pyridine and phenylphosphine oxide groups. |
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金虫 (著名写手)
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2楼2015-03-26 10:11:11
