Ishii, Hidenori; Tetsutani, Hisashi; Nagi, Tatsuya published the artcile< Improving liquid crystal alignment ability and UV sensitivity in photodecomposition polyimide film>, Reference of 4415-87-6, the main research area is carboxylic dianhydride liquid crystal UV sensitivity photodecomposition.
A liquid crystal alignment film with fewer processes capable of imparting anisotropy was developed using a polyimide, which utilized the cleavage of a cyclobutane ring by irradiation of polarized UV light at 254 nm. When an aromatic diamine with alkylene in the mol. center was used, an even methylene number of diamines showed superior liquid crystal alignment ability compared with diamines with an odd methylene number Addnl., a diamine containing a mol. structure with a pre-imidized imide group adjoined to a cyclobutane ring was extremely effective in improving liquid crystal alignment ability and sensitivity to polarized UV light.
Journal of Photopolymer Science and Technology published new progress about Anisotropy. 4415-87-6 belongs to class tetrahydrofurans, and the molecular formula is C8H4O6, Reference of 4415-87-6.
Referemce:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem