Crosslinked core-shell structure nano-polymer microsphere and its preparation method |
Title： |
| Crosslinked core-shell structure nano-polymer microsphere and its preparation method |
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Application Number： |
200410056806 |
Application Date： |
2004/08/20 |
Announcement Date： |
2005/05/25 |
Pub. Date： |
2006/10/11 |
Publication Number： |
1618824 |
Announcement Number： |
1279068 |
Grant Date： |
2006-10-11 |
Granted Pub. Date： |
2006-10-11 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C08F 20/10, C08F 12/08, C08F 2/16 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Yu Jian, Zeng Zhong, Guo Zhaoxia |
Key Words： |
Crosslinked, core-shell structure, nano-polymer microsphere, preparation method |
Abstract： |
Crosslinked core-shell structure nano-polymer microsphere and method for making same belong to the polymer material technology field. In accordance with the present invention, in presence of wedding agents and initiating agents, a plurality of organic olefin hydrocarbon monomer are selected as raw materials to prepare the product thorough emulsion or suspension polymerization wherein water is selected as a medium; the product is of a core-shell structure with a particle diameter smaller than 100 nm, with inside of the cores and shells being crosslinked, and the cores and shells being connected therebetween through chemical bonds. By changing constitution and structure of cores and shells, in accordance with the present invention, nanometer polymer microballoons having soft-core-hard-shell or hard-core-soft-shell with different physical and chemical specific characters are obtained, with very high freedom at physical design selection. The present invention not only resolves the problem that the existing core-shell polymer microspheres don't possesses nanometer dimensions, but also resolves the problem that the existing cores and shells are often linear polymers, resulting in a more broad applications foreground at the nanometer technology field. |
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Priority： |
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PCT： |
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