| abstract |
The invention relates to a block co-polymer comprising at least one first block and at least one second block which is different from the first block, wherein the first block comprises repeating units 1, and the second block comprises repeating units 2, wherein Z represents O or NH, R1 represents H or CH3, R2 represents a group selected from hydrocarbyl groups and ether group-containing groups, R3 represents an organic group having 2 to 4 carbon atoms, R4 and R5 independently represent an organic group, wherein R4 and R5 are optionally linked to each other to form a cyclic structure, and wherein the first block comprises wherein the first block comprises at least two different types of repeating units comprising ether groups. |