Abstract: Compositions including a combination of (meth)acryloyl-terminated monomers and oligomers prepared by co-reacting reactants having active hydrogen groups with an acrylating agent are disclosed. Polymerizates formed using the combinations of (meth)acryloyl-terminated monomers and oligomers exhibit a high hardness, excellent thermomechanical properties, and a high refractive index. The compositions can be used to fabricate optical components.

Abstract: Provided is a polymerizable composition including (a) a polymerizable component comprising a diol bis(allyl carbonate) and/or a pre-polymer thereof; and (b) a polymerization initiator component including: (i) a di(C6-C10 alkyl) peroxydicarbonate, and (ii) an organic peroxide having one peroxy, one peroxycarbonate, or one peroxybenzoate group and a 1,1-dimethylalkyl group bonded to a peroxy oxygen, where (ii) comprises a molecular weight ranging from 200 to 250 g/mole, the polymerization initiator (b) is free of diisopropyl peroxydicarbonate, (i) comprises an amount ranging from 4.87% to 7.90% by weight relative to the total solids of the polymerizable composition and (ii) comprises an amount within the range defined by the following formula: (4.406X2?0.592X+0.021)?Y?(0.726X2?0.121X+0.009) where X corresponds to the weight fraction of (i) and Y corresponds to the weight fraction of (ii). Also provided is a method of making an optical article from the polymerizable composition.

Abstract: Compositions including a combination of (meth)acryloyl-terminated monomers and oligomers prepared by co-reacting reactants having active hydrogen groups with an acrylating agent are disclosed. Polymerizates formed using the combinations of (meth)acryloyl-terminated monomers and oligomers exhibit a high hardness, excellent thermomechanical properties, and a high refractive index. The compositions can be used to fabricate optical components.