Chinese invention patent: Amphipath block copolymers, congeries material thereof, preparation method and application

Inventor: Yanlei Yu, Li Lin, Ze Feng, Zeng Yan, Zhujun Yan

Applicant: Fudan University

Patent No.: ZL 200810203338.1

Abstract:

The invention particularly relates to a new amphiphilic block copolymer with a photo-responsive group and a pH-value sensitivity group, an aggregate material capable of stimulating response and formed in a solvent by the amphiphilic block copolymer, and a preparation method thereof. The amphiphilic block copolymer is obtained through the polymerization of atom transfer radical. In the solvent, the amphiphilic block copolymer can form nanometer aggregate material through a self-assembly method. The aggregate material is characterized in that the aggregate material can be regulated by light and pH value, can realize the reversible aggregation and dissociation of aggregates and has double-response property. The characteristics of the aggregate material solve a plurality of limitation in the application of single-response material; therefore, the amphiphilic block copolymer can be widely applied to fields, such as biochemistry, chemical catalysis and synthesis and the like.