The present invention relates to a process for the production of a polyaryl ether sulfone polymer (P), comprising the following steps: (I) provision of a solution (PL) which comprises the polyaryl ether sulfone polymer (P) and comprises an aprotic polar solvent (L), (II) separation of the solution (PL) into droplets, (III) transfer of the droplets into a precipitation bath (F) which comprises water, with the result that the polyaryl ether sulfone polymer (P) is obtained in the form of particles, and (IV) isolation of the polyaryl ether sulfone polymer (P)
where the temperature of the solution (PL) in step (II) is in the range from 50 to <80° C.

The present specification provides a copolymer and an organic solar cell including the same.

Polyphenylene sulfide microparticles have a linseed oil absorption amount of 40 to 1,000 mL/100 g and a number average particle diameter of 1 to 200 μm. The porous PPS microparticles have a large specific surface area and therefore promote fusion of particles when molded into various molded bodies by applying thermal energy, thus enabling formation or molding of a coating layer of particles at a lower temperature in a shorter time. The porous PPS microparticles have a porous shape and therefore enable scattering light in multiple directions and suppression of specific reflection of reflected light in a specific direction, thus making it possible to impart shading effect and matte effect when added to a medium.

The present specification provides a copolymer and an organic solar cell including the same.

The present specification provides a copolymer and an organic solar cell including the same.

Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

Polymers for use as protective layers and other components in electrochemical cells are provided. In some embodiments, the electrochemical cell is a lithium-based electrochemical cell.

The invention provides a new class of synthetic sequence-defined polymer (SDP) and a method of synthesizing the same. The synthetic sequence-defined polymers have dithiocarbamate incorporated to the backbone. The method introduces a functional group dithiocarbamate in the backbone by using a new support-free, protection-deprotection free three-component reaction strategy. Dithiocarbamate-SDP is prepared from a unique bifunctional monomer, CS.sub.2 and chloroacetyl chloride. Chloracetyl chloride is used as a co-monomer. Different functional groups may be introduced in the dithiocarbamate-SDP via custom synthesis of monomers with the desired functional group, using the method disclosed. The SDPs may undergo modular post-synthetic modification through multiple paths. SDP is produced in multi-gram scale at low cost and in an eco-friendly manner through the method. No hazardous waste is produced in the process as HCl gas released from the reaction may be neutralized by bicarbonate in the medium.

The invention provides a new class of synthetic sequence-defined polymer (SDP) and a method of synthesizing the same. The synthetic sequence-defined polymers have dithiocarbamate incorporated to the backbone. The method introduces a functional group dithiocarbamate in the backbone by using a new support-free, protection-deprotection free three-component reaction strategy. Dithiocarbamate-SDP is prepared from a unique bifunctional monomer, CS.sub.2 and chloroacetyl chloride. Chloracetyl chloride is used as a co-monomer. Different functional groups may be introduced in the dithiocarbamate-SDP via custom synthesis of monomers with the desired functional group, using the method disclosed. The SDPs may undergo modular post-synthetic modification through multiple paths. SDP is produced in multi-gram scale at low cost and in an eco-friendly manner through the method. No hazardous waste is produced in the process as HCl gas released from the reaction may be neutralized by bicarbonate in the medium.

Disclosed herein are poly(hydroxylalkyleneimine disulfide)polymers, which have both desirable transfection properties and reduced toxicity.