| 摘要 |
A cationic polymer represented by: wherein P1 and P2 represent portions of the cationic polymer to which the first functional group shown in A is bonded, or wherein P represents the remainder of the cationic polymer to which the second functional group shown in B is bonded, or the cationic polymer may comprise one or more of the first functional groups as shown in A and/or one or more of the second functional groups as shown in B where X represents an anion, typically chlorine. The cationic polymer is capable of maintaining azetidinium groups present as part of the functional groups under a broad range of conditions. The polymer backbone may be a polyether, polyester, polyamide or the like, with the functional group present as mid-chain or terminal functional group(s). A process for forming the cationic polymer involves the reaction of a coupling compound with a pre-polymer comprising primary and/or secondary amine groups. The coupling compound: |
