The present disclosure provides enynes, end-functionalized polymers, conjugates, methods of preparation, compositions, kits, and methods of use. The conjugates comprise at least (1) a peptide (e.g., an antibody), protein, nucleoprotein, mucoprotein, lipoprotein, glycoprotein, or polynucleotide; and (2) a polymer comprising a pharmaceutical agent. The conjugates may be useful in delivering (e.g., targeted delivering) the pharmaceutical agent to a subject in need thereof or cell or treating, preventing, or diagnosing a disease.

Materials (e.g., particles, hydrogels) that provide extended release of one or more therapeutic agents are useful platforms for drug delivery. In part, the present invention relates to new triblock (ABC) bottlebrush copolymers which can be used in the formulation of particles and hydrogels for the extended release of therapeutic agents. In certain embodiments, the triblock bottlebrush copolymers, particles, and hydrogels described herein are thermally-responsive and gel at physiological temperature (e.g., upon administration to a subject), providing injectable and/or implantable gels which can be used for extended release drug delivery. The present invention also provides methods for extended release drug delivery, and methods of treating and/or preventing a disease or conditions in a subject, using the inventive copolymers, particles, and hydrogels. In addition, the present invention provides methods of preparing the triblock bottlebrush copolymers described herein.

Provided are: an organic electronic material which can be easily multilayered and that can be used in substrates, such as resin, that cannot be processed at high temperatures; an ink composition containing the same; an organic thin film formed using said organic electronic material or said ink composition; and an organic electronic element and an organic EL element that are formed using said organic thin film and that have a superior luminous efficacy and emission lifespan than conventional elements. Specifically, provided are: an organic electronic material that is characterized by containing an oligomer or a polymer having a structure that branches into three or more directions and has at least one polymerizable substituent; an ink composition containing said organic electronic material; and an organic thin film prepared using the aforementioned organic electronic material. Further, provided are an organic electronic element and an organic electroluminescent element containing said organic thin film.

The present invention provides a method for producing polythiophene star copolymer capable of being self-doped by an external stimulus, which includes the steps of: forming a polythiophene macroinitiator made by introducing a living radical polymerizable functional group into an end of polythiophene or a derivative thereof; forming through living radical polymerization a polymer macroinitiator for providing by an external stimulus at least a dopant selected from the group consisting of sulfonic acid radical, carboxylic acid radical and phosphoric acid radical; and polymerizing the polythiophene macroinitiator added with the polymer macroinitiator and at least one kind of divinyl monomer to produce the polythiophene star copolymer. The polythiophene star copolymer capable of being self-doped by an external stimulus according to the present invention is a self-doped material to stably increase conductivity, and can be used as a material for a conductive film.

The present disclosure provides enynes, end-functionalized polymers, conjugates, methods of preparation, compositions, kits, and methods of use. The conjugates comprise at least (1) a peptide (e.g., an antibody), protein, nucleoprotein, mucoprotein, lipoprotein, glycoprotein, or polynucleotide; and (2) a polymer comprising a pharmaceutical agent. The conjugates may be useful in delivering (e.g., targeted delivering) the pharmaceutical agent to a subject in need thereof or cell or treating, preventing, or diagnosing a disease.