Abstract
A random copolymethacrylate containing benzoic acid and benzaldehyde side groups (P1), and a diblock copolymer of P1 and a polymer with heptadecafluorodecyl side groups (P2) were synthesized by means of reversible addition-fragmentation chain transfer (RAFT) polymerization. The linearly polarized (LP) UV light exposure initiated the thermally stimulated photoinduced reorientation of P1(P2)/4-methoxyaniline (AN) films due to the axis-selective photoisomerization of in situ formed N-benzylideneaniline (NBA) groups. A photoinduced birefringent pattern was achieved by sublimation or inkjet coating with AN on the P1(P2) film, which formed NBA moieties in the desired region. Clear birefringent pattern was attained when using P2 because the fluorine-containing block improved the NBA formation at the AN-coated region.
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