xylylene造句

• Pdmaema can be cross - linked by quaternization to develop a positively charged dense network structure . according this mechanism , pdmaema / psf positively charged nanofiltration membrane was developed by interfacial polymerization using psf plate macrofiltration membrane as support layer , pre - polymer of pdmaema water solution as coating solution , p - xylylene dichloride / heptane as cross - linking agent
  根据这一机理，以psf平板微孔膜为基膜， pdmaema预聚物水溶液为涂层液，以对二氯苄正庚烷溶液为交联剂，采用界面聚合法制备了pdmaema psf荷正电复合纳滤膜。