Patent · US Active

Polymerization process for preparing monodispersal organic/inorganic composite nano-microsphere

US8552110B2 · kind B2 · utility

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9Claims

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Assignee

Shanghai Allrun Nano Science and Technology Co., Ltd. · CN

Inventors

Longlan Cui · Shanghai, CN
Hong Xu · Quzhou, CN
Hongchen Gu · Shanghai, CN

Key dates

Filing date	Jan 11, 2007
Grant date	Oct 8, 2013
Priority date	—
Expiry date	Feb 5, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2/22
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polymerization process for preparing mono-disperse organic/inorganic nanocomposite microspheres in the field of nano technology is disclosed. The process comprises preparing of two different miniemulsion systems of A with inorganic nanoparticles and B with polymeric monomers in advance; adding water-soluble initiator into miniemulsion A, stirring till complete dissolution finally, heating the mixed system to a given temperature for isothermal reaction. The grain size of the as-prepared superparamagnetic Fe3O4/polystyrene using to present invention is homogeneous and controllable, and the magnetic particles content is controllable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.