A DDS preparation of a platinum complex, which exhibits a superior antitumor effect required as a medicine and reduced side effects, that is, a clinically usable DDS preparation of a platinum complex, which is conjugated to a polymer carrier that is different from conventional carriers, is desired. Provided is a polymer conjugate of a platinum(II) complex, the polymer conjugate including: a block copolymer having a polyethylene glycol structural moiety and a polyaspartic acid moiety or a polyglutamic acid moiety; a sulfoxide derivative introduced into a side-chain carboxyl group of the block copolymer; and a platinum(II) complex coordinate-bonded to a sulfoxide group of the sulfoxide derivative.

Processes of preparing defined monomer sequence polymers are disclosed, in which a backbone portion of the polymer is first prepared by performing one or more sequential monomeric coupling reactions with intervening membrane diafiltration purification/isolation steps, followed by a step of decorating the backbone portion with one or more side chains at predetermined positions along its length. The process represents an improvement on prior art techniques, which impose limitations on the size of the side chains that may be present. Defined monomer sequence polymers that are obtainable by the processes are also disclosed.

A cation-conducting polymer has two or more repeating units of the following formula ##STR00001##
Owing to the cation-conducting polymer has good physicochemical properties, hydrolytic stability and conductivity, a film formed by coating the liquid cation-conducting polymer can be used as proton exchange membrane to apply in fuel cell system.

The present invention relates to a polyethylene glycol derivative and a preparation method thereof. A preparation process of a polyethylene glycol derivative, according to the present invention, may provide a novel polyethylene glycol derivative which can be utilized in various ways as a drug linker, and is appropriate and effective for mass production and is advantageous in reproducible mass production of high-quality products.

It is provided a diblock copolymer consisting of a first block, a second block, and a linker, wherein the second block is covalently bound to the first block by the linker. Thereby, the first block is a glycerol block comprising 1 to 10 glycerol subunits that are optionally substituted, and the second block is a superhydrophobic block comprising a perfluoroether residue having at least 20 carbon atoms.

A composition for forming a resist underlayer film that functions as an anti-reflective coating during exposure and can be embedded in a recess having a narrow space and a high aspect ratio, and has excellent resistance to an aqueous hydrogen peroxide solution. A resist underlayer film-forming composition containing a resin, a compound of the following Formula (1a) or (1b):

##STR00001##

wherein X is carbonyl group or methylene group, 1 and m are each independently an integer of 0 to 5 and satisfy a relational expression of 31+m 10, and n is an integer of 2 to 5, and a solvent, wherein the compound of Formula (1a) or (1b) is contained in an amount of 0.01% by mass to 60% by mass relative to the amount of the resin.

Alkoxylated compounds are disclosed herein, as well as methods of making and using such compounds. In some embodiments, the alkoxylated fatty acids are formed from compounds derived from natural oils, such as fatty acids, fatty acid esters, and fatty alcohols. In some embodiments, the alkoxylated compounds are used as surfactants for making synthetic polymers by emulsion polymerization. In some other embodiments, the alkoxylated compounds are used as surfactants for making synthetic rubber, such as styrene-butadiene rubber. In some other embodiments, the alkoxylated compounds are used as surfactants in a composition for treatment of gas or oil wells, for cleaning applications, for use in various laundry-related applications, for use in personal care compositions, or for use as solvents for coating applications, such as reactive and non-reactive waterborne coating applications.

According to one aspect of the present invention, an organic fluorine compound is represented by a general formula

(R--E-CH.sub.2).sub.2-A(1A)

(where A is a divalent perfluoropolyether group, is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E is an ether bond or an ester bond or a group that is represented by a chemical formula

OCH.sub.2CH(OH)CH.sub.2O

two groups each of which is represented by a general formula

R--E-CH.sub.2

may be the same or different, and at least one n among two is an arylene group).

The present invention discloses a PEGylated thioxanthone photoinitiator and a photosensitive resin composition, the PEGylated thioxanthone compound is eco-friendly and has low toxicity, high initiation efficiency and good thermal stability, meanwhile, as a kind of photoinitiator, the compound has a small amount of fragment residue after cured, and may improve the compatibility of the photoinitiator and photosensitive resin composition system. The photosensitive resin composition provided by the present invention has reasonable allocation of ingredients and content in the components thereof, capable of 3D-printing a hydrogel having a specific structure; the hydrogel has lower cytotoxicity and better biocompatibility, and may applied in bioengineering fields, e.g., 3D cell culture.

According to one aspect of the present invention, an organic fluorine compound is represented by a general formula

(R--E-CH.sub.2-A-CH.sub.2-E).sub.n--G(1B) (where n is an integer of 2 to 5, A is a divalent perfluoropolyether group, is an arylene group or a single bond, R is an alkenyl group or an alkynyl group, and E and E are each independently an ether bond or an ester bond or a group that is represented by a chemical formula

OCH.sub.2CH(OH)CH.sub.2O

is a group in which n+1 hydrogen atoms are separated from benzene, G is an organic group containing a fullerene skeleton, the n number of groups each of which is represented by a general formula

R--E-CH.sub.2-A-CH.sub.2-E-

may be the same or different, and at least one among the n number of is an arylene group).