| abstract |
The invention relates to novel compounds having formula (I), wherein R1, R2 and R3, which may be identical or different, represent independently a hydrogen, a halogen, a hydroxy or hydroxyalkyl group at C1 to C15, and a linear or branched alkyl group at C1 to C15, a, b and c being independently included between 0 and 5. R4 is linked to the naphthalene unit at position 1, 2 or 3 via a -CH2-O- link and represents: either a divalent group which can be (co)polymerised with a monomer, in which case d is between 1 and 3; or a monovalent group which can be (co)polymerised with a monomer, in which case d is equal to 2 or 3. R5 is linked to the naphthalene unit at position 1, 2 or 3 and represents: a hydrogen, a halogen, a hydroxyalkyl group at C1 to C15, and a linear or branched alkyl group at C1 to C15, d being an integer of between 0 and 2, such that d+e = 3. The invention also relates to the method of synthesising said compounds and to the use thereof for the production of photochromic or photosensitive polymers. |