A biodegradable cationic polymer is disclosed, comprising first repeat units derived from a first cyclic carbonyl monomer by ring-opening polymerization, wherein more than 0% of the first repeat units comprise a side chain moiety comprising a quaternary amine group; a subunit derived from a monomeric diol initiator for the ring-opening polymerization; and an optional endcap group. The biodegradable cationic polymers have low cytotoxicity and form complexes with biologically active materials useful in gene therapeutics and drug delivery.

The invention relates to the synthesis and process thereof of a Quorum Sensing (QS) based polymer formed by the process of ring opening polymerization/ring opening copolymerization. The formed homopolymer or heteropolymer or copolymer displays increased half-life, bioactivity and biostability in stimulating the microbial quorum sensing in a predetermined microbial population.

The invention relates to the synthesis and process thereof of a Quorum Sensing (QS) based polymer formed by the process of ring opening polymerization/ring opening copolymerization. The formed homopolymer or heteropolymer or copolymer displays increased half-life, bioactivity and biostability in stimulating the microbial quorum sensing in a predetermined microbial population.

New poly(pyrocarbonate)-based polymers have been synthesized. When these polymers are combined with electrolyte salts, such polymer electrolytes have shown excellent electrochemical oxidation stability in lithium battery cells. Their stability along with their excellent ionic transport properties make them especially suitable as electrolytes in high energy density lithium battery cells.

The present application relates to a polycarbonate including a unit represented by Chemical Formula 1, a composition including the same and a molded article prepared from the composition.

The present application relates to a polycarbonate including a unit represented by Chemical Formula 1, a composition including the same and a molded article prepared from the composition.

A polycarbonate copolymer which has siloxane constituent units represented by any of formulae (1-1) to (1-4) and prescribed polycarbonate constituent units.

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A polycarbonate copolymer which has siloxane constituent units represented by any of formulae (1-1) to (1-4) and prescribed polycarbonate constituent units.

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The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.

The present invention relates to a polycarbonate-based resin composition and a molded article thereof, and more specifically, to a polycarbonate-based resin composition exhibiting improved impact strength (impact resistance) and chemical resistance while including a glass fiber in a relatively small content, and a molded article formed therefrom.