Title: Hollow magnetic polymer compound microring and its preparation method
Application Number: 200610028172 Application Date: 2006.06.27
Publication Number: 1869078 Publication Date: 2006.11.29
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08F2/44,C08F2/24,C08F220/56,C08F220/06,C08K3/00,H01F1/42
Applicant(s) Name: Donghua Univ. Address: 201620
Inventor(s) Name: Wang Biao, Sun Ying
Attorney & Agent: zhang zhumei
Abstract:
     A magnetic hollow high-molecular microsphere with 0.2-1.5 microns for external diameter and 0.1-0.8 microns for internal diameter is composed of high-molecular polymer and magnetic inorganic nanoparticles in mass ratio of (7-9): (1-3). Its preparing process includes such steps as synthesizing the iron oxide nanoparticles by chemical deposition method, and polymerizing by fine emulsion polymerizing method.
Time: 6