摘要:
Provided is a method for mitigating a lost circulation zone. The method may include providing a lost circulation treatment composition that may include an acid responsive polymer that may include at least one monomer, at least one comonomer, and at least one crosslinker; a carbonate-based solvent; and a carrier fluid that may include water. The method may also include introducing the lost circulation treatment composition into a wellbore within a subterranean formation, wherein the subterranean formation may include the lost circulation zone; placing the lost circulation treatment composition into the lost circulation zone, hydrolyzing the carbonate-based solvent to generate carbon dioxide, and causing the swelling (change of shape) of acid responsive polymer to mitigate the losses.
摘要:
In light of requests to reduce or reverse the wavelength dispersion of the birefringence of a phase-retardation film in order to increase the viewing angle of a liquid crystal display, the present invention provides a polymerizable compound that reduces, for example, the likelihood of crystals precipitating in a polymerizable composition including the polymerizable compound and enables the polymerizable composition to have high preservation stability and a polymerizable composition including the polymerizable compound which reduces the likelihood of inconsistencies being formed in a film-like polymer produced by polymerizing the polymerizable composition. Another object of the present invention is to provide a polymer produced by polymerizing the polymerizable composition and an optically anisotropic body including the polymer.
摘要:
Various embodiments of the present invention are directed to switchable carboxybetaine-based polymers, hydrogels, and/or elastomers, along with novel related monomers, crosslinkers, and methods. Under acidic conditions, the materials undergo self-cyclization and can catch and kill bacteria. Under neutral/basic conditions, these materials undergo ring-opening and can release killed bacterial cells and resist protein adsorption and bacterial attachment. These smart polymers, hydrogels and elastomers also show excellent mechanical properties making them highly desirable for many biomedical applications.
摘要:
There is provided a material for an anode buffer lay which permits the use of an organic solvent as a solvent an anode buffer layer-forming solution, and is capable forming an anode buffer layer that does not dissolve even win coated with a luminescent layer-forming material solution containing an organic solvent as a solvent, and which is capable of producing an organic EL element having high electrical power efficiency and long life.
摘要:
Provided is a coloring composition which uses a dye polymer and which can form a pattern properly. The coloring composition includes a (A) dye multimer having a non-nucleophilic counter anion and a (B) polymerizable compound.
摘要:
To provide a composition for laser engraving that can give a relief printing plate having excellent ink laydown and that has excellent rinsing properties after laser engraving.A composition for laser engraving, the composition that comprises (Component A) an acrylate oligomer; (Component B) a thermopolymerization initiator; and (Component C) at least one of the compounds represented by Formula (1) to Formula (7); the composition not comprising or comprising at more than 0 mass % but less than 2 mass % relative to the total mass of the composition (Component D) a resin having a weight-average molecular weight of at least 10,000, wherein R1 to R18 independently denote a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a heterocyclic group, or a substituted heterocyclic group, L2 denotes a divalent organic group, L3 denotes a trivalent organic group, and L4 denotes a tetravalent organic group.
摘要:
Provided are: a method for controlling the decoloration reaction rate and color density of a fast light-modulating material to levels suitable for practical use; and a fast light-modulating material having a decoloration reaction rate and a color density which are suitable for practical use. A polymer obtained by polymerizing a paracyclophane-bridged hexaarylbisimidazole compound having a radical-polymerizable group, and a copolymer obtained by copolymerizing the compound with a (meth)acrylic acid compound or a sensitizer having a radical-polymerizable group can achieve controlled decoloration reaction rates, photosensitivity and color tones.
摘要:
The present invention relates to a cancer-cell-specific polymer compound containing a photosensitizer for photodynamic therapy and having a surface to which an antibody against a cancer-cell-specific antigen binds. An object of the present invention is to provide a photodynamic therapeutic agent that can reach the cancer tissue at a low concentration via active targeting and makes complications (e.g., sunlight hypersensitivity) associated with photodynamic therapy unlikely to occur.
摘要:
Provided is a proton-conducting compound which provides proton conductivity without humidification and is suitable for electrochemical device materials such as solid electrolytes for fuel cells and electrolytes for batteries. Provided also is a proton-conducting polymer. The proton-conducting compound is composed of a melamine compound salt obtained from a melamine compound represented by the following formula (1) and a Bronsted acid and the proton-conducting polymer is obtained by homopolymerizing or copolymerizing the melamine compound salt. In formula (1), R1, R2, R3, R4, and R5 each is independently an alkyl group, an aryl group, an alkenyl group, a heterocyclic group, or a hydrogen atom; at least one of them is a group other than hydrogen; R2 and R3 or R4 and R5 may join together to form a heterocyclic structure; and the alkyl group, the aryl group, the alkenyl group, or the heterocyclic group may have a substituent. A melamine compound salt wherein R1 is CH2═CR6—CO—O(CH2)n— polymerizes to yield a proton-conducting polymer. In this particular R1 group, R6 is hydrogen or an alkyl group and n is an integer equal to or larger than 1.