[OH-].[K+].[C:3](O)(=O)[CH:4]=C.C(O)[C@H]1O[C@H:13]([O:15][C@:16]2([CH2:25][OH:26])O[C@H:19]([CH2:21]O)[C@@H:18](O)[C@@H:17]2O)[C@H:12](O)[C@@H](O)[C@@H]1O.C(OCCO)(=O)C(C)=C.C([C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)(=O)C>O>[CH2:13]([O:15][CH:16]([C:17]1[CH:18]=[CH:19][CH:21]=[CH:4][CH:3]=1)[C:25]([C:43]1[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=1)=[O:26])[CH3:12]The powdered KOH is added slowly to the acrylic acid and the saccharose and water in a reaction flask kept in an ice-water bath. The temperature is kept between 40° and 50° C. After neutralization, the pH-value of the resulting solution is adjusted to 7.8. Then 2-hydroxyethyl methacrylate and the acetophenone are added. The mixture is then poured into the polymerization trough and polymerization is effected by UV-radiation at a bath temperature of 50° C. and a reaction temperature of 60° C. The product is readily millable.
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