title: Facile Preparation of CO2-Responsive Polymer Nano-Objects via Aqueous Photoinitiated Polymerization-Induced Self-Assembly (Photo-PISA).
abstract: Carbon dioxide (CO2)-responsive polymer nano-objects are prepared by photoinitiated reversible addition-fragmentation chain transfer dispersion polymerization of 2-hydroxypropyl methacrylate and 2-(dimethylamino)ethyl methacrylate (DMAEMA) in water at room temperature using a poly(poly(ethylene glycol) methyl ether methacrylate) macromolecular chain transfer agent. Kinetic studies confirm that full monomer conversions are achieved in all cases within 10 min of visible-light irradiation (405 nm, 0.5 mW cm-2). The effect of DMAEMA on the polymerization is studied in detail, and pure higher order morphologies (worms and vesicles) are prepared by this particular formulation. Finally, CO2-responsive property of the obtained vesicles is investigated by dynamic light scattering, visual appearance, and transmission electron microscope.
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Jianbo
authors: J
authors: Tan
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Xuechao
authors: X
authors: Zhang
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Dongdong
authors: D
authors: Liu
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Yuhao
authors: Y
authors: Bai
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Chundong
authors: C
authors: Huang
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors: Xueliang
authors: X
authors: Li
authors: Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.|Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou, 510006, China.
authors: Li
authors: L
authors: Zhang
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry*; D007700:Kinetics; D008027:Light; D008689:Methacrylates / Q000737:chemistry; D010777:Photochemistry; D058105:Polymerization / Q000528:radiation effects; D011108:Polymers / Q000138:chemical synthesis*
chemical_list: D008689:Methacrylates; D011108:Polymers; D002245:Carbon Dioxide; C049840:2-(dimethylamino)ethyl methacrylate; C029639:2-hydroxypropyl methacrylate
keywords: CO2-responsive; diblock copolymers; photo-PISA