In situ modification of mesogenic side groups for photoinduced reorientation of photoreactive non-liquid crystalline polymeric films
Abstract Photoinduced reorientation of photoreactive nonliquid-crystalline polymeric (PNLCP) film is investigated based on axis-selective photoreaction combined with in situ modification of mesogenic side groups using a microwave oven. Co(polymethacrylates) with cinnamic acid (CA) and 4-formylphenyl benzoate (PA) side groups are synthesized. In situ condensation of PA and 2-aminofluorene molecules after linearly polarized UV light exposure of a PNLCP film produces significant molecular orientation of CA and formed N-benzylideneaniline derivative (FL-NBA) side groups. The oriented film exhibits dichroism of 0.8 and birefringence of up to 0.38.
Authors
- Tomoyuki Sasaki (ORCID: https://orcid.org/0000-0002-6408-9150)
- D. H. Katayama
- Hirofumi Takatsuka
- Moritsugu Sakamoto (ORCID: https://orcid.org/0000-0003-2054-9036)
- Shinya Kuroda (ORCID: https://orcid.org/0000-0001-5059-8299)
- Mizuho Kondo (ORCID: https://orcid.org/0000-0001-9780-3261)
- Hiroshi Ono (ORCID: https://orcid.org/0000-0002-0572-8047)
- Nobuhiro Kawatsuki
Institutions
- University of Hyogo (JP)
- DMG Mori (Japan) (JP)
- Nagaoka University of Technology (JP)
Publication Details
- Journal
- Chemistry Letters
- Published
- 2025-10-23
- DOI
- https://doi.org/10.1093/chemle/upaf187
- Primary Topic
- Photopolymerization techniques and applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00