| 摘要 |
Preparing a statistically branched copolymer comprises radically polymerizing (a) 10-98.9 mol.% of at least an acrylic acid ester of cyclic 1-22C-alkylmonoalcohol, (b) 0.1-10 mol.% of at least an ethylenically unsaturated monomer and (c) optionally one or more ethylenically unsaturated monomer in the presence of (d) 1-10 mo.% of at least an alkene compound (I) and at least an initiator, where: the molar portion of (b) does not exceed the molar portion of (d); and (c) is different from (b) and (I). Preparing a statistically branched copolymer comprises radically polymerizing (a) 10-98.9 mol.% of at least an acrylic acid ester of cyclic 1-22C-alkylmonoalcohol, (b) 0.1-10 mol.% of at least an ethylenically unsaturated monomer and (c) optionally one or more ethylenically unsaturated monomer in the presence of (d) 1-10 mo.% of at least an alkene compound of formula (H 3C-CR1aR1c-CH 2-CR1b=CH 2) (I) and at least an initiator, where: the molar portion of (b) does not exceed the molar portion of (d); and (c) is different from (b) and (I). R1a, R1b : aryl, CN or COOR1f; R1f : H, alkyl, aryl or aralkyl; and R1c : alkyl, aryl or aralkyl. Independent claims are included for: (1) the statistically branched copolymer obtained by the above process; and (2) use of the copolymer as leveling agents in a coating agent. |
