摘要:
A novel dioxetane compound is provided having a cationically polymerizable oxetane group, which compound is excellent in compatibility with a liquid crystalline compound and a non-liquid crystalline compound. An optical film is also provided with excellent liquid crystal orientation retention properties and mechanical strength, produced by aligning a composition of the dioxetane compound and a cationically polymerizable compound in a liquid crystal orientation and fixing the liquid crystal orientation by polymerization. Further, a liquid crystal display device is provided with the optical film.
摘要:
A process for preparing 1,2,4,5-dimethyldiisopropylbenzene includes conducting alkylation of p-xylene with propylene to produce an alkylation product, and crystallizing the alkylation product. A heteropolyacid-supported catalyst can be used as an alkylation catalyst for the reaction. The reaction solution produced from the alkylation reaction can be distilled before crystallization to improve yield and purity even more.
摘要:
A process is provided for producing efficiently an optically active liquid crystalline polymer compound excellent in mechanical strength or optical characteristics at low cost, in which in that a liquid crystal polymer compound having in its main chain or side chain an ester bond is reacted with an optically active low molecular weight compound having a hydroxyl group so as to introduce the low molecular weight compound in the polymer compound as a unit having an optically active group.
摘要:
The present invention provides a liquid crystal film which comprises a liquid crystal layer having excellent retainability of homeotropic alignment and which has excellent interlayer adhesion between a cycloolefin polymer (COP) film and the liquid crystal layer. The liquid crystal film is produced by aligning homeotropically a liquid crystalline composition containing a (meth)acrylic compound having an oxetane group and fixing the composition in a homeotropic alignment by polymerizing the oxetane group directly on the COP film. The liquid crystal film is excellent in interlayer adhesion. The present invention also provides an optical element produced using the liquid crystal film.
摘要:
A process is provided for producing efficiently an optically active liquid crystalline polymer compound excellent in mechanical strength or optical characteristics at low cost, in which in that a liquid crystal polymer compound having in its main chain or side chain an ester bond is reacted with an optically active low molecular weight compound having a hydroxyl group so as to introduce the low molecular weight compound in the polymer compound as a unit having an optically active group.
摘要:
A novel dioxetane compound is provided having a cationically polymerizable oxetane group, which compound is excellent in compatibility with a liquid crystalline compound and a non-liquid crystalline compound. An optical film is also provided with excellent liquid crystal orientation retention properties and mechanical strength, produced by aligning a composition of the dioxetane compound and a cationically polymerizable compound in a liquid crystal orientation and fixing the liquid crystal orientation by polymerization. Further, a liquid crystal display device is provided with the optical film.