An admixture for a hydraulic composition includes a polycondensation product P containing a copolymer prepared by polycondensation of a monomer mixture containing compounds A to C of the following Formulae (A) to (C); and a polycarboxylic acid-based polymer Q including a structural unit having an amino and an imino group, and/or a structural unit having an amino, imino, and amido group: ##STR00001## (wherein R.sub.1 is a hydrogen atom, alkyl, or alkenyl group; A.sub.1O is a C.sub.2-4 alkylene oxide group; p is a number of 1 to 300; and X is a hydrogen atom, an alkyl, or acyl group; R.sub.2 is an alkyl or alkenyl group; A.sub.2O is a C.sub.2-4 alkylene oxide group; q is a number of 1 to 300; and Y.sub.1 is a phosphate ester group; and R.sub.3 is a hydrogen atom, carboxy, alkyl, alkenyl, phenyl, naphthyl, or heterocyclic group; and r is a number of 1 to 100).

An allyl-containing resin is provided. The allyl-containing resin comprises a repeating unit comprising a structural unit represented by the following formula (I):

##STR00001## wherein, R.sub.1 to R.sub.3 in formula (I) are as defined in the specification; the Fourier transform infrared spectrum of the allyl-containing resin has a signal intensity “a” from 1650 cm.sup.−1 to 1630 cm.sup.−1 and a signal intensity “b” from 1620 cm.sup.−1 to 1560 cm.sup.−1, and 0<a/b≤1.20; and the quantitative .sup.1H-NMR spectrum of the allyl-containing resin has a signal intensity “c” from 3.2 ppm to 6.2 ppm and a signal intensity “d” from 6.6 ppm to 7.4 ppm, and 0<c/d≤1.20.

An allyl-containing resin is provided. The allyl-containing resin comprises a repeating unit comprising a structural unit represented by the following formula (I):

##STR00001## wherein, R.sub.1 to R.sub.3 in formula (I) are as defined in the specification; the Fourier transform infrared spectrum of the allyl-containing resin has a signal intensity “a” from 1650 cm.sup.−1 to 1630 cm.sup.−1 and a signal intensity “b” from 1620 cm.sup.−1 to 1560 cm.sup.−1, and 0<a/b≤1.20; and the quantitative .sup.1H-NMR spectrum of the allyl-containing resin has a signal intensity “c” from 3.2 ppm to 6.2 ppm and a signal intensity “d” from 6.6 ppm to 7.4 ppm, and 0<c/d≤1.20.

An electrolyte for a lithium secondary battery is disclosed herein. In some embodiments, an electrolyte which includes a lithium salt having a concentration of 1.6 M to 5 M, an oligomer mixture which includes a first oligomer containing a unit represented by Formula 1 and a second oligomer containing a unit represented by Formula 2, and an organic solvent.

Provided is a composition, with which it is possible, by means of a simple application process, to form an organic film that has excellent performance, such as optical and electrical properties, and exhibits optical anisotropy. This composition, which exhibits lyotropic liquid crystallinity, contains: a polymer (P) having an acidic functional group; water; and a compound (A) that is at least one selected from the group consisting of a basic monomer and a base-generating agent. The composition contains: a polymer (P) having a partial structure shown in formula (0); water; and a compound (A) that is at least one selected from the group consisting of a basic monomer and a base-generating agent. Formula (0) has at least one acidic functional group.

Provided is a composition, with which it is possible, by means of a simple application process, to form an organic film that has excellent performance, such as optical and electrical properties, and exhibits optical anisotropy. This composition, which exhibits lyotropic liquid crystallinity, contains: a polymer (P) having an acidic functional group; water; and a compound (A) that is at least one selected from the group consisting of a basic monomer and a base-generating agent. The composition contains: a polymer (P) having a partial structure shown in formula (0); water; and a compound (A) that is at least one selected from the group consisting of a basic monomer and a base-generating agent. Formula (0) has at least one acidic functional group.

The present invention relates to a method of preparing a poly-γ-glutamic acid hydrogel using ultraviolet ray and to a use of the poly-γ-glutamic acid hydrogel prepared by the method, and the method of preparing poly-γ-glutamic acid hydrogel using ultraviolet irradiation according to the present invention solved the problem of microbial contamination in the poly-γ-glutamic acid solution, and produced poly-γ-glutamic acid hydrogel in high yield by only a simple treatment process, and as it was confirmed that the poly-γ-glutamic acid hydrogel has improved storage stability in a solution, the poly-gamma-glutamic acid hydrogel prepared by the method of preparing the same of the present invention can be provided as a tissue engineering scaffold, artificial organs and bio-ink for 3D printing.

Provided is a heat-curable resin composition capable of yielding a cured product that has a superior dielectric property and heat resistance and is thus useful for high-frequency purposes. Particularly, there are provided a composition containing the following components (A), (C) and (D); and a composition containing the following components (A) and (B). The components (A), (B), (C) and (D) are: (A) a cyclopentadiene compound represented by the following formula (1) and/or an oligomer(s) of the cyclopentadiene compound

##STR00001##

wherein R represents a group selected from an alkyl group, an alkenyl group and an aryl group, n represents an integer of 1 to 4, each of x1 and x2 independently represents 0, 1 or 2, provided that when R represents an alkyl group or an aryl group, x1 represents 1 or 2, and x1 and x2 satisfy 1≤x1+x2≤4; (B) a cyclic imide compound; (C) a curing accelerator; and (D) an inorganic filler.

Provided is a heat-curable resin composition capable of yielding a cured product that has a superior dielectric property and heat resistance and is thus useful for high-frequency purposes. Particularly, there are provided a composition containing the following components (A), (C) and (D); and a composition containing the following components (A) and (B). The components (A), (B), (C) and (D) are: (A) a cyclopentadiene compound represented by the following formula (1) and/or an oligomer(s) of the cyclopentadiene compound

##STR00001##

wherein R represents a group selected from an alkyl group, an alkenyl group and an aryl group, n represents an integer of 1 to 4, each of x1 and x2 independently represents 0, 1 or 2, provided that when R represents an alkyl group or an aryl group, x1 represents 1 or 2, and x1 and x2 satisfy 1≤x1+x2≤4; (B) a cyclic imide compound; (C) a curing accelerator; and (D) an inorganic filler.

A photosensitive resin composition contains (i) modified partially-saponified polyvinyl acetate having a functional group introduced into a side chain thereof, (ii) tertiary nitrogen atom-containing polyamide, (iii) a photopolymerizable unsaturated compound and (iv) a photopolymerization initiator, characterized in that the above (ii) tertiary nitrogen atom-containing polyamide contains 20 to 50% by mol of a structural unit obtained from cyclohexane-dicarboxylic acid and 50 to 95% by mol of an alicyclic structural unit in total, in relation to a total of an amount of an aminocarboxylic acid unit (including a case wherein lactam is a raw material), an amount of a dicarboxylic acid unit and an amount of a diamine unit in the polyamide molecule. There is also provided a relief printing original plate which is characterized in having, on a support, a photosensitive resin layer formed by using this photosensitive resin composition.