| 摘要 |
The invention concerns a controlled structure polymer comprising at least two different parts, one first part A, amphoteric or zwitterionic, including anionic or potentially anionic units, and cationic or potentially cationic units, or zwitterionic units, and another part B, non amphoteric or zwitterionic. Said copolymer exhibits further high potentials of adaptation, through variation of its composition, in order to improve the properties of compositions in which it is introduced. |
