Methacrylic anhydride
Methacrylic anhydride is a liquid which reacts with water exothermically.
It can also react with hydroxyl- and amino-groups present in some organic compounds leading to covalent attachment of methacryloyl moieties. These functional groups could be successfully used either in subsequent polymerisation or reactions with thiols. For example, chitosan modified by methacryloylation exhibits better ability to adhere to mucosal surfaces.
