A curable composition contains a betaine monomer having a predetermined structure and a polyfunctional (meth)acrylamide compound having a predetermined structure.

The present invention provides a polymer replica of a target molecule, the polymer replica being capable of accurately inheriting surface information possessed by the target molecule in a molecular imprinting technique. A polymer replica of a target substance, the target substance having multiple types of binding groups including at least a binding group BG1 and a binding group BG2 on the surface, wherein: the polymer replica is configured from a second molecularly imprinted polymer having, as a template, a first molecularly imprinted polymer having the target substance as a template; the polymer replica has on the surface thereof at least a binding group bg1 at a position corresponding to the position of binding group BG1 and a binding group bg2 at a position corresponding to the position of the binding group BG2 on the surface of the target substance; and the polymer replica of the target substance can be used as a template during synthesis of a molecularly imprinted polymer having a specific recognition site for the target substance because the polymer replica accurately inherits the surface information possessed by the target molecule.

According to the present invention, a liquid crystal aligning agent is configured to contain a polymer [P] which has a partial structure represented by formula (1) and comprises a photo-alignment group. In formula (1), each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, a halogen atom or a monovalent organic group having one or more carbon atoms; and each of X.sup.1 and X.sup.2 independently represents —OH, —NH.sub.2 or a monovalent organic group having one or more carbon atoms, provided that at least one of X.sup.1 and X.sup.2 represents “—OR.sup.3” or “—NR.sup.3R.sup.4” (wherein each of R.sup.3 and R.sup.4 independently represents a hydrogen atom or a monovalent organic group having one or more carbon atoms).

According to the present invention, a liquid crystal aligning agent is configured to contain a polymer [P] which has a partial structure represented by formula (1) and comprises a photo-alignment group. In formula (1), each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, a halogen atom or a monovalent organic group having one or more carbon atoms; and each of X.sup.1 and X.sup.2 independently represents —OH, —NH.sub.2 or a monovalent organic group having one or more carbon atoms, provided that at least one of X.sup.1 and X.sup.2 represents “—OR.sup.3” or “—NR.sup.3R.sup.4” (wherein each of R.sup.3 and R.sup.4 independently represents a hydrogen atom or a monovalent organic group having one or more carbon atoms).

This invention belongs to the technical field of composite materials, and discloses a xylan-based dual network nanocomposite hydrogel, preparation method thereof and use therefor. The method comprises (1) adding graphite oxide powder into deionized water, ultrasonically dispersing to obtain a GO aqueous dispersion; (2) adding xylan into deionized water, heating and stirring to obtain a xylan solution; (3) adding a water-soluble calcium salt, a reaction monomer and the xylan solution into the GO aqueous dispersion, and stirring and dispersing uniformly under an ice-bath condition, then adding an initiator, a crosslinking agent and an accelerator, stirring and mixing uniformly to obtain a mixed solution; and 4) drying and reacting the mixed solution (in the step (3) to obtain a xylan-based dual network nanocomposite hydrogel. The composite hydrogel obtained by this invention has high mechanical property, is biodegradable and biocompatible, and can be used in the field of biomedicine, such as tissue engineering, drug sustained release, cell culture scaffold and cartilage tissue, etc.

Embolic particles are described. The particles are reaction products of a prepolymer solution including at least one polyether macromer and an appropriate monomer.

A method for preparing an anti-bacterial and anti-ultraviolet multifunctional chemical fiber includes: dissolving several soluble metal salts and a polymer complexing dispersant into water to prepare an aqueous solution; adding into a polymer monomer; reacting under microwave or hydrothermal action to obtain a polymer monomer containing multifunctional nano oxides; adding the polymer monomer with other monomer, catalyst, initiator, stabilizer, and the like into a polymerization reactor; and carrying out esterification, polycondensation or copolymerization to obtain a polymer melt, and carrying out spinning or ribbon casting and granule cutting to obtain an anti-bacterial and anti-ultraviolet multifunctional chemical fiber or masterbatch chips. By generating nano metal oxides in the monomer in situ before the polymerization reaction, small particle sizes and dispersibility of the nano metal oxide are ensured; the chemical fiber has efficient, durable antibacterial and anti-ultraviolet functions and is free of metal ion precipitation.

Methods and compositions are disclosed relating to the localization of nucleic acids to arrays such as silane-free arrays, and of sequencing the nucleic acids localized thereby.

Methods and compositions are disclosed relating to the localization of nucleic acids to arrays such as silane-free arrays, and of sequencing the nucleic acids localized thereby.

Textile nonwovens are produced without formaldehyde by employing a polymer binder which is a copolymer of vinyl acetate, ethylene, (meth)acrylamide, (meth)acrylic acid and maleic acid or anhydride or maleamic acid.