Nissan Chemical Industries Limited

Riken Corporation

Nissan Chemical Corporation

The Kitasato Institute

Daniel Antonio Sahade

Takaoki Takanashi

Toshimasa Hamada

Takuya Maeyama

A radiation dosimetry gel, usable in a polymer gel dosimeter having an improved sensitivity and high safety, includes a gelator, and a compound of the following Formula (1): wherein Ris a hydrogen atom or a methyl group, m and n are each an integer of 2 to 4, k is 0 or 1, and a plurality of Rs and ms are each the same as or different from one another. Also provided for is a radiation dosimeter including the radiation dosimetry gel as a material for radiation dosimetry.

Radiation dosimetry gel and radiation dosimeter comprising same as material for measuring radiation dose

A radiation dosimetry sol or gel, and a radiation dosimeter containing the sol or the gel as a material for radiation dosimetry. A radiation dosimetry sol or gel including a compound (A) having an excitation light-induced fluorescence property that is changed by a radiolysis product of water; and a silicate salt (B). A radiation dosimetry sol or gel including a compound (A) having an excitation light-induced fluorescence property that is changed by a radiolysis product of water; a silicate salt (B); a water-soluble organic polymer (C) having an organic acid salt structure or an organic acid anion structure; and a dispersant (D) for the silicate salt (B). A radiation dosimeter including, as a material for radiation dosimetry, the above-mentioned radiation dosimetry sol or gel.

Radiation dosimetry sol or gel and radiation dosimeter comprising same as material for radiation dosimetry

Since a polymerizable liquid crystal compound represented by the general formula (1) produces polymers exhibiting high optical anisotropy and high chemical resistance, and the optical anisotropy thereof exhibits low wavelength dependence, polymers obtained from a polymerizable liquid crystal composition comprising said polymerizable liquid crystal compound are useable as an optically anisotropic film for polarizers, wave plates, and the like, and are particularly best used in pattern formation that uses photolithography in air. (n represents an integer in the range of 3 to 10, m represents an integer in the range of 0 to 5, and q represents an integer in the range of 1 to 2.)

Polymerizable liquid crystal compound, polymerizable liquid crystal composition, and oriented film

Disclosed is a bifunctional polymerizable compound represented by the formula [1]. Also disclosed is a polymerizable liquid crystal composition comprising at least one bifunctional polymerizable compound represented by the formula [1] and a polymerizable liquid crystal compound. The bifunctional polymerizable compound has a high polymerizability. When added to a polymerizable liquid crystal compound to prepare a polymerizable liquid crystal composition, the bifunctional polymerizable compound enables to remarkably improve the thermal stability of a polymer produced from the composition. The polymerizable liquid crystal composition containing the bifunctional polymerizable compound has a low crystallization temperature and shows a stable liquid-crystallinity under ordinary environment wherein X, Xand Xindependently represent a single bond or a benzene ring; Y represents &#x2014;O&#x2014; or a single bond; M represents a lactone ring or an acrylate group; and n represents an integer of 4 to 10.

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Funabashi, Japan

Daniel Antonio Sahade