Abstract: The present invention relates to a novel fluorene derivative having a structure of formula (I): wherein X is independently selected from a group consisting of Cl, Br, I, trifluoromethanesulfonate and 4-(trifluoromethyl)benzenesulfonate; Y is a group of formula —(CH2)n— where n is an integer ranging from 3 to 12; and R1, R2, R3, and R4 are independently selected from a group consisting of tert-butyl group, triphenylamine, carbazole and carbazole derivative. The invention further relates to a polymer obtained from the said novel fluorene derivative and methods for preparing the same, as well as their uses as materials for an organic light-emitting diode device.

Abstract: In an embodiment, a natural rubber-based ABS—target polymer blend includes natural rubber-based ABS powder combined with a set of target polymers (e.g., polycarbonate (PC)). A natural rubber-based ABS powder production process includes producing grafted natural rubber; and mixing the grafted natural rubber with a set of grafted polybutadiene rubbers. The set of grafted polybutadiene rubbers includes at least one grafted polybutadiene rubber having a particle size that is significantly different than the grafted natural rubber particle size. In an embodiment, the grafted natural rubber exhibits a large particle size; a first grafted polybutadiene rubber exhibits a small particle size; and a second grafted polybutadiene rubber exhibits a medium particle size between the large and small particle sizes.

Abstract: In accordance with the present disclosure, a method of preparing a solid support for a transition metal catalyst is disclosed. The solid support may have a unique morphology that may be derived from contacting the magnesium compound and an electron donor in the presence of a fluorinated organic compound to form the solid support. The solid support may be used to form an enhanced catalyst. The enhanced catalyst may be used, in combination with an organoaluminum compound, as a Ziegler-Natta (ZN) catalyst. The ZN catalyst including the enhanced catalyst may be used to form a UHMWPE.

Abstract: In accordance with the present disclosure, a method of preparing a solid support for a transition metal catalyst is disclosed. The solid support may have a unique morphology that may be derived from contacting the magnesium compound and an electron donor in the presence of a fluorinated organic compound to form the solid support. The solid support may be used to form an enhanced catalyst. The enhanced catalyst may be used, in combination with an organoaluminum compound, as a Ziegler-Natta (ZN) catalyst. The ZN catalyst including the enhanced catalyst may be used to form a UHMWPE.