A composition of matter including a crosslinked bottlebrush polymer, wherein the crosslinker units in the composition of matter are soluble with the bottlebrush polymer. In one example, the crosslinked bottlebrush polymer is tailored as a single phase (solvent free) elastomer useful in a capacitive pressure sensing device. A novel embodiment of the present invention further includes demonstration of a universal approach to form solvent-free bottlebrush polymer networks by photo-crosslinking mixtures of well-defined bottlebrush precursors and bis-benzophenone-based additives. This method has been proven effective with a wide variety of different side-chain chemistries.

The present disclosure relates to hypercrosslinked magnetic particle with a polymer matrix and at least one magnetic core (M), wherein the polymer matrix has at least one crosslinked polymer having at least one hypercrosslinking bond, wherein the hypercrosslinking bond is a molecule having at least two nitrogen atoms within its structure which are part of the hypercrosslinking bond; and having at least one positive charge. Further, the disclosure relates to a method of preparing the hypercrosslinked magnetic particle and also to hypercrosslinked magnetic particle obtained or obtainable from the method. Also described is the use of the hypercrosslinked magnetic particles for enrichment or purification of at least one analyte as well as to the use of the hypercrosslinked magnetic particles for purification of water.

Several embodiments of hyperbranched structures are disclosed. In some embodiments, the hyperbranched structures are covalently modified to store and release nitric oxide. Some embodiments pertain to methods of making and also to the use of hyperbranched structures. The covalently modified hyperbranched structures may be tailored to release nitric oxide in a controlled manner and are useful for eradication of both gram positive and gram negative bacteria as well as other microbes.

Degradable sulfur-containing hyperbranched epoxy resin and a preparation method thereof. The preparation method comprises initiating a reaction of a mercaptocyclotriazine compound and a binary olefin by ultraviolet light to prepare a mercapto hyperbranched polymer; then reacting with glycidyl methacrylate to obtain a degradable sulfur-containing hyperbranched epoxy resin of which the molecular weight is about 3,000-35,400 g/mol. After the degradable sulfur-containing hyperbranched epoxy resin is cured, a cyclotriazine structure can be completely degraded within 1.5 h in a phosphoric acid solution at the temperature of 80 DEG C, thus realizing the recycle of the epoxy resin. The invention is simple in process, low in reaction temperature, rapid in reaction and high in yield, the sulfur-containing structure lowers curing temperature and realizes rapid curing, and cyclotriazine structure has a degradation function, and is expected to be used in the fields of strengthening and toughening of the epoxy resins, solvent-free coatings, electronic packaging.

Provided is a resin composition for producing a coating composition excellent in appearance, abrasion resistance, and hardness of a coating film. The resin composition of the present invention includes a compound A having a branched structure which has a terminal hydroxyl group, a polyisocyanate B, and an inorganic particle C, in which the inorganic particle C has a functional group enabling reacting with a hydroxyl group or an isocyanate group on a surface thereof.

Core-shell particles have a hydrophobic core and a shell formed of or containing hyperbranched polyglycerol (HPG). The HPG can be covalently bound to the one or more materials that form the core or coated thereon. The HPG coating can be modified to adjust the properties of the particles. For example, unmodified HPG coatings impart stealth properties to the particles which resist non-specific protein absorption. Alternatively, the hydroxyl groups on the HPG coating can be chemically modified to form functional groups that react with functional groups on tissue or otherwise interact with tissue to adhere the particles to the tissue, cells, or extracellular materials, such as proteins. Such functional groups include, but not limited to, aldehydes, amines, and O-substituted oximes. Topical formulation for application to the skin contain these HPG coated nanoparticles. In some embodiments, the particles include therapeutic, diagnostic, nutraceutical, and/or prophylactic agents such as those used as sunblock compositions.

Hyperbranched polydiorganosiloxane polyoxamide polymers are formed from reaction mixtures containing AX.sub.g and BZ.sub.m compounds where either A or B is a siloxane-based group, and each X is either an oxalylamino-functional group or an amino-functional group, and each Z is either an amino-functional group or an oxylamino-functional group, such that upon reaction X and Z form an oxamide bond.

Wax-modified hyperbranched polyols and wax-modified flexible hyperbranched polyols are described, as are coating compositions containing these polyols. These polyols provide excellent coatings, especially matte coatings, and allow for the exclusion of silica in coatings.

A method of preparing a branched polymer comprises the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The average length of each vinyl polymer chain within the product is short.

A copolymer comprising an oxygenated polyaromatic alcohol and a poly (alkylene oxide) alkyl ether (meth)acrylate is disclosed, wherein the oxygenated polyaromatic alcohol is preferably lignin or lignin derivative. A hydrogel comprising the copolymer and a cyclic oligosaccharide such as -cyclodextrin is also disclosed, which can be used in biomedical or personal care industries, for example as a carrier for an active agent.