The present invention provides a polymerizable compound having high storage stability without causing crystal precipitation when added to a polymerizable composition. The present invention also provides a polymerizable composition containing the compound. When the filmy polymer produced through polymerization of the polymerizable composition is irradiated with UV light, it hardly discolors or peels from substrate. Further, the present invention provides a polymer produced through polymerization of the polymerizable composition and an optically anisotropic body using the polymer.
POLYMERIZABLE COMPOSITION AND OPTICALLY ANISOTROPIC BODY USING SAME
申请人:DIC Corporation
公开号:US20180016502A1
公开(公告)日:2018-01-18
The present invention provides a polymerizable composition containing: a) a polymerizable compound having one or two or more polymerizable groups and satisfying formula (I)
Re(450 nm)/Re(550 nm)<1.0; and (I)
b) an organic solvent having a solubility parameter (SP value) of 8.50 to 11.00 (cal/cm
3
)
0.5
, a boiling point of 75 to 180° C., and an evaporation rate index of 20 to 700. The present invention also provides an optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable composition of the present invention. The polymerizable composition of the present invention is useful because it is excellent in solubility and has high storage stability that prevents the occurrence of precipitation of crystals. When the composition is polymerized to produce a film-shaped polymer, uneven application is less likely to occur while the liquid crystal alignment is maintained.
POLYMERIZABLE COMPOSITION AND OPTICALLY ANISOTROPIC BODY
申请人:DIC Corporation
公开号:US20180037817A1
公开(公告)日:2018-02-08
The polymerizable composition prevents precipitation and the like of crystals and has high storage stability. A polymer compound is added to the polymerizable composition. In a case where a film-shaped polymer obtained by polymerizing the polymerizable composition is prepared, a tilt angle formed with an air interface is small, and glances of reflected light when a circularly polarizing plate is obtained by combining the polymer with a polarizing plate are removed. In addition, there is provided a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The polymerizable composition includes a reverse dispersible compound represented by General Formula (I), and a compound represented by General Formula (II).
Photoinduced Hydrodifluoromethylation and Hydromethylation of Alkenes Enabled by Ligand-to-Iron Charge Transfer Mediated Decarboxylation
Directly utilizing abundant and inexpensive sources of aliphatic carboxylic acids is highly attractive for the synthesis of CF2H- and CH3-containing compounds. Herein, we report a versatile photoinduced iron-catalyzed platform for hydrodifluoromethylation and hydromethylation of alkenes without the need of additional stoichiometric oxidants. These two transformations are accomplished by a visible-light-induced