Each of the branched chains is linked together with the tertiary carbon atom of polypropylene through primary valence bond, but with no cros-slinking between them.

• 和常见的交联型离子交换树脂不同,聚羧酸支链未经化学或物理交联,它仅以末端和聚丙烯链节中的叔碳原子相连而锚着于颗粒表面;