Sulfonic acid functional macromolecular/SiO2 composite nano-particles and process for preparing same
Title：
Sulfonic acid functional macromolecular/SiO2 composite nano-particles and process for preparing same
Application Number：
 200410000747
Application Date：
 2004/01/16
Announcement Date：
 2004/12/29
Pub. Date：
 2006/06/07
Publication Number：
 1557876
Announcement Number：
 1258570
Grant Date：
 2006-6-7
Granted Pub. Date：
 2006-6-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C08L 101/02, C08K 3/36, C08F 2/44, C08F 2/16
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Yu Jian, Zeng Zhong, Guo Zhaoxia
Key Words：
 Sulfonic acid functional, macromolecular, SiO2, composite nano-particles, preparing method
Abstract：
 The present invention belongs to the field of polymer material technology. Nano silica grain, coupling agent, organic olefin monomer and olefin monomer containing sulfonic radical or sulfonate radical as materials are polymerized in soap-free emulsion with water as medium or soap-free suspension polymerized to prepare the composite functional nano sulfonic polymer/SiO2 particle. The product is spherical particle with inorganic nano SiO2 as core, organic polyolefin as shell and sulfonic radical as surface functional group, and has particle size smaller than 100 nm. The present invention has lowered production cost and easy purification of product, and may meet high purity requirement. The introduction of sulfonic radical results in high chemical reaction activity and ionizing capacity and thus raised application value.
Claim：
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PCT：
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