Title:
METHOD FOR SYNTHESIZING MAGADIITE/PMMA NANO COMPOSITE MICROSPHERES BY USING PH VALUE REGULATION IN PICKERING EMULSION
Document Type and Number:
WIPO Patent Application WO/2019/218607
Kind Code:
A1
Abstract:
Disclosed is a method for synthesizing magadiite/PMMA nano composite microspheres by using pH value regulation in a Pickering emulsion. According to the method, organic modified magadiite is used as an emulsifier, deionized water of which the pH value is regulated with a buffer solution is used as a solvent, and methylmethacrylate monomer is used as an oil phase of a Pickering emulsion; stirring is performed to form the stable Pickering emulsion, and a water-soluble free-radical initiator is then added to initiate emulsion polymerization, thereby synthesizing magadiite/PMMA nano composite microspheres. According to the present invention, the use of organic modified magadiite emulsifier solid particles greatly improves the stability of an emulsion in different pH values, achieves free regulation to the size of nano composite microspheres, and significantly reduces the dosage of the emulsifier; a process for regulating the size of the nano composite microspheres is simple and easy to operate and has an obvious effect; the synthesized magadiite/PMMA nano composite microspheres has uniform sizes and is environmentally friendly.
Inventors:
GE MINGLIANG (CN)
WANG XUBIN (CN)
CAO LUOXIANG (CN)
WANG XUBIN (CN)
CAO LUOXIANG (CN)
Application Number:
PCT/CN2018/113222
Publication Date:
November 21, 2019
Filing Date:
October 31, 2018
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
C08F120/14; B01J13/14; C08F2/28; C08F2/44; C08K3/34; C08K9/06
Foreign References:
| CN108641024A | 2018-10-12 | |||
| CN106519092A | 2017-03-22 | |||
| CN107412193A | 2017-12-01 | |||
| CN104001437A | 2014-08-27 |
Other References:
SHENGWEN ZOU: "Controllable porous microspheres and monoliths fabricated from pickering emulsion template", CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, 9 April 2014 (2014-04-09), pages 6 - 9
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
Download PDF: