| 摘要 |
1. A macroporous, crosslinked bead polymer which has been prepared from 10 to 100% of divinylbenzene and/or a benzene containing more than two vinyl groups, and from 0 to 90% of styrene, which can be mono- or poly-C1-4 -alkyl-substituted and/or methyl methacrylate, wherein the beads have been subjected to an abrasion-causing surface treatment. |
