PHOTOREACTIVE POLYMER, MONOMER, AND OPTICAL FILM

To provide a photoreactive polymer for an optical film exhibiting excellent refractive index anisotropy by polarized ultraviolet light irradiation or oblique incidence ultraviolet light irradiation, and heat calcination treatment dispensing with an oriented film, a monomer for the photoreactive poly...

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Hauptverfasser: KOMATA DAICHI, SHIMODAIRA SHINGO, SAKASHITA RYUICHI, MURAKAMI NORITAKE, SHICHIDA YUKI, TACHIMOTO TOMOKO, ICHIJO HIROKI, KOBAYASHI OSAMU
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a photoreactive polymer for an optical film exhibiting excellent refractive index anisotropy by polarized ultraviolet light irradiation or oblique incidence ultraviolet light irradiation, and heat calcination treatment dispensing with an oriented film, a monomer for the photoreactive polymer, and an optical film composed of the photoreactive polymer.SOLUTION: A photoreactive polymer has a constitutional unit including a photoreactive structure which reacts chemically by light irradiation, where the photoreactive structure is represented by the following formula (1). In the formula, a ring A, a ring B, and a ring C are independently an aromatic ring, a polycyclic aromatic ring, or a condensed ring-type aromatic ring each having an atom selected from the group consisting of C, N, O, and S as a ring constitutional atom, X is an alkoxy group, a halogen group, acyloxy group, or the like, Y is H, an alkoxy group, a halogen atom, acyloxy group, or the like, and S1 and S2 are independently a spacer group, or a single bond.SELECTED DRAWING: None 【課題】配向膜を必要とせず、偏光紫外線照射あるいは斜め入射紫外線照射、および加熱焼成処理により、優れた屈折率異方性を示す光学フィルム用の光反応性ポリマー、光反応性ポリマー用のモノマーおよび光反応性ポリマーよりなる光学フィルムを提供する。【解決手段】光照射により、光反応性構造を含む構成単位が化学反応を起こす光反応性ポリマーであって、前記光反応性構造が下記式(1)で示される光反応性ポリマー。JPEG2022142780000096.jpg37140[式中、環A、環B及び環Cは、独立して、C、N、O、及びSからなる群より選ばれる原子を環構成原子とする、芳香環、多環式芳香環、又は縮環式芳香環を表し、Xは、アルコキシ基、ハロゲン原子、アシルオキシ基等を表し、Yは、H、アルコキシ基、ハロゲン原子、アシルオキシ基等を表し、S1及びS2は、独立して、スペーサー基又は単結合を表す。]【選択図】なし