A copolymer containing N-(halogenated phenyl) maleimide units or N-(halogenated phenyl) bismaleimide units and one or more second units selected from halogenated acrylates, halogenated styrenes, halogenated vinyl ether, halogenated olefins, halogenated vinyl isocyanates, halogenated N-vinyl amides, halogenated allyls, halogenated propenyl ethers, halogenated methacrylates, halogenated maleates, halogenated itaconates, and halogenated crotonates, is useful to form optical devices

Um copolymer que contem unidades do bismaleimide das unidades do maleimide do phenyl de N-(halogenated) ou do phenyl de N-(halogenated) e uma ou mais as segundas unidades selecionadas dos acrylates halogenated, dos styrenes halogenated, ether halogenated do vinil, olefins halogenated, isocyanates halogenated do vinil, amidos halogenated do N-vinil, allyls halogenated, ethers propenyl halogenated, methacrylates halogenated, maleates halogenated, itaconates halogenated, e crotonates halogenated, é útil dar forma a dispositivos óticos