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发明授权
CN105308217B 含氟系聚合物、阳离子交换膜和电解槽 有权 转让

含氟系聚合物、阳离子交换膜和电解槽
摘要：
本发明涉及一种阳离子交换膜，其为包含含氟系聚合物的阳离子交换膜，所述含氟系聚合物含有四氟乙烯单元和具有羧酸型离子交换基的全氟乙烯单元，其中，对羧酸型离子交换基进行甲基酯化而得到的含氟系聚合物在270℃、负荷2.16kg、孔内径2.09mm的条件下所测定的熔融指数a为3g/10分钟～50g/10分钟，并且，熔融指数a与对羧酸型离子交换基进行甲基酯化而得到的含氟系聚合物在260℃、负荷2.16kg、孔内径2.09mm的条件下所测定的熔融指数b满足下述式(1)所表示的关系。(a‑b)/(270‑260)≤0.027×a+0.19(1)。
摘要（英）：

The present invention relates to a cation exchange membrane comprising a fluorine-containing polymer containing a tetrafluoroethylene unit and a perfluoroethylene unit having a carboxylic acid-type ion exchange group, wherein a melt index a of the fluorine-containing polymer from methyl esterifying the carboxylic acid-type ion exchange group measured under the condition at 270°C, a load of 2.16 kg and an orifice inner diameter of 2.09 mm is 3 to 50 g/10 min, and the melt index a and a melt index b of the fluorine-containing polymer from methyl esterifying the carboxylic acid-type ion exchange group measured under the condition at 260°C, a load of 2.16 kg and an orifice inner diameter of 2.09 mm satisfy the relation represented by the following expression (1):(a - b)/(270 - 260) ‰¤ 0.027 × a + 0.19 (1).

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