Chemistry Letters, Vol.33, No.1, 12-13, 2004
Photoinduced reorientation of polymethacrylate film with 4-methoxyazobenzene side groups using linearly polarized He-Ne laser and annealing
This letter describes thermally enhanced reorientation of azobenzene-containing polymer films by linearly polarized (LP) 633nm He-Ne laser light. Axis-selective photoreaction of the Z-isomers and subsequent annealing generated parallel reorientation with a reorientational order larger than +0.8 although the film was almost off-resonant at 633 nm.