摘要:
A photocurable composition contains a polymerizable compound; and a photopolymerization initiator, in which the photocurable composition contains a compound represented by General Formula (1) shown below as the polymerizable compound, and in which, in General Formula (1), Ar represents a monovalent aromatic group which may have a substituent, R1 represents an alkyl group which may have a substituent or a hydrogen atom, R2 represents an alkyl group having (m + n) valences which may have a substituent, m is an integer of 2 or more, and n is an integer of 1 or more.
摘要:
An object of the present invention is to provide a filler for ion-exchange liquid chromatography which can effectively suppress non-specific adsorption of protein and the like, a method for analyzing glycosylated hemoglobin using the filler for ion-exchange liquid chromatography, a method for production of a filler for ion-exchange liquid chromatography that can maintain suppressive effects on swelling, non-specific adsorption and the like for a long period of time. The method of production of the filler comprises a hydrophilization process by washing the surface of the filler particle with ozone water having a dissolved ozone gas concentration of 20 ppm or more and by either setting the pH of the ozone water to 7 or more and applying ultrasound.
摘要:
The purpose of the present invention is to provide an extreme pressure agent which does not contain any metal element or the like and is highly safe but which exhibits performance equivalent to those of conventional extreme pressure agents each containing a metal element or the like when used in lubrication purposes. This extreme pressure agent comprises a copolymer (A) which comprises an alkyl acrylate (a) represented by general formula (1) and a hydroxyalkyl acrylate (b) represented by general formula (2) as the essential constituent monomers, and is characterized in that the reaction ratio of the component (a) to the component (b) (i.e., (a)/(b)) is 50/50 to 80/20 (by mole) and the copolymer (A) has a weight average molecular weight of 40,000-150,000. (In formula (1), R1 represents an alkyl group having 10-18 carbon atoms.) (In formula (2), R2 represents an alkylene group having 2-4 carbon atoms.) (in the formula, R 1 represents an alkyl group having 10 to 18 carbon atoms) (in the formula, R 2 represents an alkylene group having 2 to 4 carbon atoms).
摘要:
An object of the present invention is to provide a radically curable compound which produces cured products with excellent heat resistance, and in order to achieve the object, the present invention provides a radically curable compound represented by general formula (1) below. (In the formula, R 1 and R 2 are each independently an alkyl group having 1 to 8 carbon atoms, R 3 and R 4 are each independently a hydrogen atom or a methyl group, m and n are each independently an integer of 1 to 4, and X is an aromatic hydrocarbon group or an aromatic hydrocarbon group substituted by an alkyl group having 1 to 8 carbon atoms.)
摘要:
To provide a liquid crystal display panel that has high contrast and reduced display deficiency, a liquid crystal display panel of the present invention includes: a pair of substrates (1) and (2) facing each other; and a liquid crystal layer (3) sandwiched between the pair of substrates (1) and (2), the pair of substrates (1) and (2) being provided with a pair of respective alignment films (4) and (5) formed thereon and facing each other, the pair of alignment films (4) and (5) being provided with respective polymer films (6) and (7) formed thereon and each made of a monomer in the liquid crystal layer (3), the pair of alignment films (4) and (5) containing a macromolecular compound having a functional group represented by at least one of General Formulae (1) through (5), the liquid crystal layer (3) containing a polymerizable monomer represented by at least one of General Formulae (6) through (8), the polymer films (6) and (7) each being (i) made of the polymerizable monomer represented by at least one of General Formulae (6) through (8) and (ii) bonded to the functional group represented by at least one of General Formulae (1) through (5).
摘要:
A polymerizable compound represented by the following general formula (1). It can provide a composition which is polymerizable at around room temperature and shows a liquid-crystal phase at low temperatures. The composition and a (co)polymer of the polymerizable compound are a liquid-crystal substance useful as an optically anisotropic object. (In the formula, rings A1 to A3 each represents a benzene ring, cyclohexane ring, etc.; X to Z each represents C1-8 alkyl or alkoxy, C2-6 alkenyl, halogeno, cyano, or CH2=CR3-COO-; R1 to R3 each represents hydrogen, methyl, or halogeno; L1 to L3 each represents -CH2CH2COO-, -COO-, -OCO-, -CH2CH2-, -O(CH2)f- (wherein f is 1 to 8), etc.; n is 0 or 1; and a to c are such numbers that the polymerizable compound has one or more substituents which are at least any one of X, Y, and Z.)
摘要:
A compound having a good durability against light and capable of producing desired liquid crystallinity after polymerization, and a polymerizable liquid crystal composition containing such a compound, are provided. Further, an optical element having a good durability against light, and an optical information writing/reading device employing such an element, are provided. A compound represented by CH 2 =CR 1 -COO-R 2 -Cy-Ph-R 3 -OCO-CR 4 =CH 2 . R 1 and R 4 are each preferably a hydrogen atom. R 3 is preferably a C 1-6 alkylene group wherein an oxygen atom is present or not present at an end of the group to be bonded to a cyclic group, and wherein some or all of hydrogen atoms bonded to carbon atoms in the group may be substituted by fluorine atoms; or an alkylene group wherein an oxygen atom is present at an end of the group to be bonded to a cyclic group. A diffraction grating 2 produced by employing this liquid crystal compound has a good durability against light, and accordingly, it is possible to constitute an optical information writing/reading device suitable for large capacity recording by employing a blue laser as a light source 1.