利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN102227252A 不对称气体分离膜和气体分离方法 失效 - 权利终止

不对称气体分离膜和气体分离方法
摘要：
本发明公开了一种不对称气体分离膜，其是由通式(1)所表示的重复单元构成可溶性芳族聚酰亚胺制备，并且具有改进的气体分离性能和改进的机械性质。[在通式(1)中，B包含10-70摩尔％的由通式(B 1)所表示四价单元B1和90-30摩尔％的由通式(B2)所表示的四价单元B2；并且A包含10-50摩尔％的由通式(A1a)所表示的二价单元A1或类似物质和90-30摩尔％的由通式(A2a)表示的二价单元A2或类似物质。]
摘要（英）：

Disclosed is an asymmetric gas separation membrane which is formed by a soluble aromatic polyimide composed of a repeating unit represented by general formula (1) and has both improved gas separation properties and improved mechanical properties. In general formula (1), B comprises 10 to 70 mol% of a tetravalent unit B1 represented by general formula (B1) and 90 to 30 mol% of a tetravalent unit B2 represented by general formula (B2); and A comprises 10 to 50 mol% of a bivalent unit A1 represented by general formula (A1a) or the like and 90 to 30 mol% of a bivalent unit A2 represented by general formula (A2a) or the like.

公开/授权文献
0/0