Provided herein are methods of making degradable, additive-blended polymeric materials using microwave radiation and catalysts. The methods can include incorporation of therapeutic materials into the polymeric materials. There also are provided polymeric materials made by the methods and medical devices comprising the polymeric materials made by the methods.

Provided herein are methods of making degradable, additive-blended polymeric materials using microwave radiation and catalysts. The methods can include incorporation of therapeutic materials into the polymeric materials. There also are provided polymeric materials made by the methods and medical devices comprising the polymeric materials made by the methods.

Provided herein are methods of making degradable, additive-blended polymeric materials using microwave radiation and catalysts. The methods can include incorporation of therapeutic materials into the polymeric materials. There also are provided polymeric materials made by the methods and medical devices comprising the polymeric materials made by the methods.

A suspension stabilizer with high yield value and high transparency and a preparation process and use thereof, which relate to the field of suspension stabilizers. The suspension stabilizer includes the following components by mass fraction: water-soluble monomer 5.5%-70.5%; oil-soluble monomer 10.4%-83.1%; monomer with multiple active groups 0-18.7%; functional monomer 0-5.2%; graft-modified monomer 0-15.0%; emulsifier 0.5%-7.0%; and initiator 0.01-2.0%; wherein, the graft-modified monomer is a hydrophilic monomer and/or a hydrophilic group graft-modified monomer.

A suspension stabilizer with high yield value and high transparency and a preparation process and use thereof, which relate to the field of suspension stabilizers. The suspension stabilizer includes the following components by mass fraction: water-soluble monomer 5.5%-70.5%; oil-soluble monomer 10.4%-83.1%; monomer with multiple active groups 0-18.7%; functional monomer 0-5.2%; graft-modified monomer 0-15.0%; emulsifier 0.5%-7.0%; and initiator 0.01-2.0%; wherein, the graft-modified monomer is a hydrophilic monomer and/or a hydrophilic group graft-modified monomer.

A water-based acrylic resin and a method for producing the same are provided. The water-based acrylic resin includes a polymerizable composition. The polymerizable composition includes deionized water, a reactive emulsifier, a first acrylic monomer, a second acrylic monomer, a third acrylic monomer, a fourth acrylic monomer, and an acrylic polyol. The reactive emulsifier is a nonylphenyl-free reactive emulsifier. The first acrylic monomer is an alkyl-containing (meth)acrylate. The second acrylic monomer is a hydroxyl-containing (meth)acrylate. The third acrylic monomer is a carboxyl-containing (meth)acrylate. The fourth acrylic monomer is an ethylenically-unsaturated-functional-groups-containing (meth)acrylate. The acrylic polyol is one or both of a hydroxyl-containing polyester acrylic polyol and a hydroxyl-containing polyether acrylic polyol.

A water-based acrylic resin and a method for producing the same are provided. The water-based acrylic resin includes a polymerizable composition. The polymerizable composition includes deionized water, a reactive emulsifier, a first acrylic monomer, a second acrylic monomer, a third acrylic monomer, a fourth acrylic monomer, and an acrylic polyol. The reactive emulsifier is a nonylphenyl-free reactive emulsifier. The first acrylic monomer is an alkyl-containing (meth)acrylate. The second acrylic monomer is a hydroxyl-containing (meth)acrylate. The third acrylic monomer is a carboxyl-containing (meth)acrylate. The fourth acrylic monomer is an ethylenically-unsaturated-functional-groups-containing (meth)acrylate. The acrylic polyol is one or both of a hydroxyl-containing polyester acrylic polyol and a hydroxyl-containing polyether acrylic polyol.

A pattern forming method comprises dispensing a curable composition onto an underlayer of a substrate; bringing the curable composition into contact with a mold; irradiating the curable composition with light to form a cured film; and separating the cured film from the mold. The proportion of the number of carbon atoms relative to the total number of atoms in the underlayer is 80% or more. The dispensing step comprises a first dispensing step of dispensing a curable composition (A1) substantially free of a fluorosurfactant onto the underlayer, and a second dispensing step of dripping a droplet of a curable composition (A2) having a fluorosurfactant concentration in components excluding a solvent of 1.1% by mass or less onto the curable composition (A1) discretely.

A pattern forming method comprises dispensing a curable composition onto an underlayer of a substrate; bringing the curable composition into contact with a mold; irradiating the curable composition with light to form a cured film; and separating the cured film from the mold. The proportion of the number of carbon atoms relative to the total number of atoms in the underlayer is 80% or more. The dispensing step comprises a first dispensing step of dispensing a curable composition (A1) substantially free of a fluorosurfactant onto the underlayer, and a second dispensing step of dripping a droplet of a curable composition (A2) having a fluorosurfactant concentration in components excluding a solvent of 1.1% by mass or less onto the curable composition (A1) discretely.

Disclosed is a preparation method of a polycarboxylate water reducer having a regular sequence structure. The preparation method of the present invention comprises: performing Michael addition on polyethylene glycol ether acrylate macromonomer A and amino-containing carboxylic acid B for 5-12 hours, then cooling to 0° C., dropwise adding acryloyl chloride slowly and evenly, and further reacting for 12 hours at room temperature to obtain carboxyl-containing polyether macromonomer C; mixing the carboxyl-containing polyether macromonomer C, a small molecular RAFT reagent, an initiator, and water adequately; and holding the polymerization mass concentration at 30%-60% and heating to 60-80° C. in the atmosphere of N2 to react for 2-5 hours to obtain the polycarboxylate water reducer having a regular sequence structure.