摘要:
ポリアルキレングリコールまたはそのアルキルエーテルに、一般式 C n F 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH=CH 2 (ここで、nは1~6の整数であり、aは1~4の整数、bは1~3の整数である)で表わされるポリフルオロ-1-アルケンをグラフト共重合させたグラフト共重合体(A)および一般式 C n F 2n+1 (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 CH 2 ) c P(O)(OH) 2 (ここで、nは1~6の整数、aは1~4の整数、bは1~3の整数、cは1~3の整数である)で表わされるポリフルオロアルキルホスホン酸またはその塩(B)を有効成分とする離型剤。この離型剤は、炭素数8以上のパーフルオロアルキル基を有する化合物を有効成分とする離型剤と同等以上の離型性能を有し、生体蓄積性が低いといわれる炭素数6以下のパーフルオロアルキル基を有する化合物を有効成分としている。
摘要翻译:公开了一种脱模剂,其作为活性成分包括:(A)通过聚亚烷基二醇或其烷基醚和由通式C n F 2n + 1(CH 2 CF 2)表示的多氟-1-烯烃的接枝共聚而制备的接枝共聚物, a(CF 2 CF 2)b CH = CH 2(其中n表示1〜6的整数,a表示1〜4的整数,b表示1〜3的整数)。 和(B)由通式C n F 2n + 1(CH 2 CF 2)a(CF 2 CF 2)b(CH 2 CH 2)cP(O)(OH)2表示的多氟烷基膦酸(其中n表示1〜6的整数; a表示整数 1〜4的整数; b表示1〜3的整数,c表示1〜3的整数)或其盐。 脱模剂具有与包含具有8个或更多个碳原子的全氟烷基作为有效成分的化合物的脱模剂相同或更高的脱模性能。 脱模剂含有具有6个以下碳原子的全氟烷基的化合物,其是被认为具有低生物累积潜力的化合物作为活性成分。
摘要:
A solid polymer electrolyte produced using a layer-by layer (LBL) assembly process. The solid electrolyte is assembled on a substrate by alternating exposure to dilute solutions of polycation and polyanion or hydrogen-bonding donor and hydrogen-bonding acceptor. Ethylene oxide content is introduced into the LBL film by 1) covalent grafting onto a polyionic species, 2) inclusion of an ethylene oxide (e.g. PEO) polymer as one of the two component species of a LBL assembly, or 3) the addition of ethylene oxide-containing small molecule, oligomer, or polymer to a fully assembled LBL polymer matrix. The prepared films were to be ultrathin SPE films with sound mechanical properties and ion conductivity to meet the needs of current applications, such as batteries, fuels cells, sensors and electrochromic devices.
摘要:
A graft copolymer comprising polyolefin and engineering thermoplastic components, wherein the thermoplastic component is a polymer comprising heteroatoms or heteroatom containing moieties in its backbone and phenyl or substituted phenyl groups, the polyolefin component covalently bound to the engineering thermoplastic component. The graft copolymer is the reaction product of an engineering thermoplastic having at least one phenylene in the polymer backbone, and a vinyl/vinylidene terminated polyolefin having a weight average molecular weight of at least 300 g/mole, wherein the vinyl/vinylidene terminated polyolefin is selected from polyethylenes, polypropylenes, ethylene-propylene copolymers, polyisobutylenes, polydienes, propylene-based elastomers, ethylene-based plastomers, and combinations thereof.
摘要:
A biocompatible, electrically conductive biomaterial capable of earn carrying the electrical potential of a cardiac impulse and comprising (l) a conductive polymer such as polyaniline, polypyrrole or polythiophene, and (ii) a biocompatible component such as a polysaccharide, a protein, or a polypeptide, in particular chitosan or gelatin, is described. The material can take the form of a hydrogel, membrane, sheet or mesh. It can be used to restore or improve electrical impulse propagation across damaged tissue or scar region of the myocardium, in particular in the ti treatment of myocardial infarction and arrhythmia.
摘要:
A flexible polyurethane foam article exhibiting flame resistance comprises the reaction product of an isocyanate and an isocyanate-reactive component comprising a polyol reactive with the isocyanate. The isocyanate and the isocyanate-reactive component are reacted in the presence of a blowing agent and a phospholene oxide. A method of producing the flexible polyurethane foam article includes the step of reacting the isocyanate and the isocyanate-reactive component in the presence of the blowing agent and an effective amount of the phospholene oxide to form the flexible polyurethane foam article which is flame resistant.
摘要:
La présente invention concerne un procédé continu de préparation d'un polymère peigne, sans solvant organique, par estérificationet/ou amidificationd'un homopolymère ou copolymère acide, consistant à procéder à l'estérification et/ou l'amidification dudit homopolymère/copolymère par réaction à chaud dans la zone de mélange et de transport d'un réacteur tubulaire,éventuellement équipé d'un système d'élimination de l'eau, en présence d'au moins un poly(alkylène glycol) sous forme solide ou à l'état fondu et d'un antioxydant, ladite estérification et/ou amidification ayant lieu à une température supérieure ou égale à 170°C.
摘要:
The invention provides a class of wedge-type block copolymers having a plurality of chemically different blocks, at least a portion of which incorporates a wedge group-containing block providing useful properties. For example, use of one or more wedge group-containing blocks in some block copolymers of the invention significantly inhibits chain entanglement and, thus, the present block copolymers materials provide a class of polymer materials capable of efficient molecular self-assembly to generate a range of structures, such as periodic nanostructures and microstructures. Materials of the present invention include copolymers having one or more wedge group-containing blocks, and optionally for some applications copolymers also incorporating one or more polymer side group-containing blocks. The present invention also provides useful methods of making and using wedge-type block copolymers.
摘要:
Provided are a mussel adhesive protein-mimetic dispersion stabilizing agent to disperse nanoparticles in an aqueous medium, a colloidal solution including nanoparticles dispersed and stabilized by the dispersion stabilizing agent, and a contrast agent including the colloidal solution. More particularly, the mussel adhesive protein-mimetic dispersion stabilizer is a polyethyleneimine-graft-(polyethyleneglycol;polyDOPA) PEI-graft-(PEG;PDOPA). The graft polymer is formed of two parts. One is polyethyleneglycol grafted with a polyethyleneime which has an affinity to an aqueous medium, and the other is polyDOPA which has an affinity to the surface of nanoparticles. Because of those characteristics, the stabilizer shows a stable dispersion of nano particles in the aqueous medium.