| 摘要 |
<p>The polymerizable composition comprises: A) at least one episulfide monomer having at least one episulfide group and at least one or more functional groups capable of reacting with episulfide groups, and B) an effective amount of a polymerization catalyst system comprising: at least one salt of formula (I) in which Y- is an anion such as the corresponding acid YH has a pKa fulfulling the condition 0.5≤pKa≤ 14; and at least one tertiary amine. Application to the fabrication of optical articles, such as lenses.</p> |
