An object is to provide fine resin particles that have solvent resistance sufficient to withstand a heating step after solvent dispersion and that generate few bubbles during dispersion and have high dispersibility in a solvent, and a method for producing the fine resin particles. As a solution, fine resin particles obtained by polymerizing a vinyl monomer, the fine resin particles having a gel fraction of 93% or more and a solvent resistance index of 50 or less, and fine resin particles obtained by polymerizing a vinyl monomer, in which the vinyl monomer contains a reactive surfactant having a polyoxyalkylene chain in a molecule thereof, and a vinyl polymer chain of the fine resin particles is terminated with a hydroxy group derived from a polymerization initiator, are provided.

An object is to provide fine resin particles that have solvent resistance sufficient to withstand a heating step after solvent dispersion and that generate few bubbles during dispersion and have high dispersibility in a solvent, and a method for producing the fine resin particles. As a solution, fine resin particles obtained by polymerizing a vinyl monomer, the fine resin particles having a gel fraction of 93% or more and a solvent resistance index of 50 or less, and fine resin particles obtained by polymerizing a vinyl monomer, in which the vinyl monomer contains a reactive surfactant having a polyoxyalkylene chain in a molecule thereof, and a vinyl polymer chain of the fine resin particles is terminated with a hydroxy group derived from a polymerization initiator, are provided.

A mixture having (A) a polymer obtain by polymerizing at least one free-radically polymerizable compound; and (B) at least one compound having at least one ethylenically unsaturated, free-radically polymerizable group and having a weight-average molecular weight Mw of less than 5000 g/mol, wherein at least 10% by weight of compounds (B) are one or more compounds B1 with at least one nonaromatic ring system.

A mixture having (A) a polymer obtain by polymerizing at least one free-radically polymerizable compound; and (B) at least one compound having at least one ethylenically unsaturated, free-radically polymerizable group and having a weight-average molecular weight Mw of less than 5000 g/mol, wherein at least 10% by weight of compounds (B) are one or more compounds B1 with at least one nonaromatic ring system.

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

This invention includes a wettable biomedical device containing a high molecular weight hydrophilic polymer and a hydroxyl-functionalized silicone-containing monomer.

Polylactic acid-backbone graft and bottlebrush copolymers with low moisture vapor transmission rates are synthesized by polymerizing a lactide-functionalized hydrophobic macromonomer using ring-opening polymerization (ROP). In some embodiments of the present invention, the macromonomer is a lactide-functionalized hydrophobic polymer that may be synthesized by, for example, polymerizing a hydrophobic monomer (e.g., a fluorinated vinyl monomer such as 2,2,2-trifluroethyl methacrylate) capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). The brominated lactide initiator may be 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by, for example, reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide.

Polylactic acid-backbone graft and bottlebrush copolymers with low moisture vapor transmission rates are synthesized by polymerizing a lactide-functionalized hydrophobic macromonomer using ring-opening polymerization (ROP). In some embodiments of the present invention, the macromonomer is a lactide-functionalized hydrophobic polymer that may be synthesized by, for example, polymerizing a hydrophobic monomer (e.g., a fluorinated vinyl monomer such as 2,2,2-trifluroethyl methacrylate) capable of undergoing radical polymerization (e.g., styrenic, vinylic, acrylic, etc.) using a brominated lactide initiator via atom transfer radical polymerization (ATRP). The brominated lactide initiator may be 3-bromo-3,6-dimethyl-1,4-dioxane-2,5-dione prepared by, for example, reacting lactide with N-bromosuccinimide in the presence of benzoyl peroxide.

An object of the present invention is to provide a novel electro-optic polymer. Another object of the present invention is to provide a novel electro-optic polymer with a low alicyclic methacrylate monomer content. The polymer according to the present invention is a polymer comprising (a) a base polymer having a reactive group (A), (b) an electro-optic molecule having a plurality of reactive groups (B), and a bond (C) formed by reaction of the reactive group (A) with the plurality of reactive groups (B), the bond (C) being at least one type of bond selected from the group consisting of a (thio)ester bond, a (thio)urethane bond, a (thio)urea bond and a (thio)amide bond.

An object of the present invention is to provide a novel electro-optic polymer. Another object of the present invention is to provide a novel electro-optic polymer with a low alicyclic methacrylate monomer content. The polymer according to the present invention is a polymer comprising (a) a base polymer having a reactive group (A), (b) an electro-optic molecule having a plurality of reactive groups (B), and a bond (C) formed by reaction of the reactive group (A) with the plurality of reactive groups (B), the bond (C) being at least one type of bond selected from the group consisting of a (thio)ester bond, a (thio)urethane bond, a (thio)urea bond and a (thio)amide bond.