| abstract |
Novel allyl-acrylic monomers of the formula: ##STR1## wherein R is a C 1-4 alkylene group and R 1 is hydrogen or methyl, are described. The preferred monomer is that in which R is ethylene and R 1 is methyl. When subjected to conventional free radical polymerization, in one stage or two stages, these monomers give transparent polymers having good mechanical properties, particularly hardness. |