| 摘要 |
<p>Copolymerization of maleic anhydride with the resin acids present in rosin especially abietic-type resin acids, e.g. abietic acid and neoabietic acid, to form high molecular weight copolymers is disclosed. The polymerization is carried out in the presence of a free radical initiator such as AIBN. The temperature can range up to about 190 DEG C and a solvent such as THF can also be present.</p> |
