Facile preparation of hybrid vesicles loaded with silica nanoparticles via aqueous photoinitiated polymerization-induced self-assembly. Issue 37 (26th April 2017)

• Record Type: Journal Article
• Authors: Tan, Jianbo; Liu, Dongdong; Zhang, Xuechao; Huang, Chundong; He, Jun; Xu, Qin; Li, Xueliang; Zhang, Li
• Is Part Of: RSC advances. Volume 7:Issue 37(2017)
• Page Start: 23114
• Page End: 23121
• Publication Date: 2017-04-26
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c7ra02770b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : We report a photoinitiated dispersion polymerization of 2-hydroxypropyl methacrylate (HPMA) in the presence of silica nanoparticles using a poly(ethylene glycol) methyl ether (mPEG) macromolecular chain transfer agent (macro-CTA). Abstract : We report a room-temperature photoinitiated polymerization-induced self-assembly (photo-PISA) of 2-hydroxypropyl methacrylate (HPMA) in the presence of silica nanoparticles using a poly(ethylene glycol) methyl ether (mPEG) macromolecular chain transfer agent (macro-CTA). Hybrid vesicles loaded with silica nanoparticles were obtained by this one-pot approach. The solids content of the polymer vesicles can be up to 25% w/w. A control experiment was conducted to prove that free silica nanoparticles can be removed via centrifugation-redispersion. Finally, CO2 -responsive hybrid vesicles were prepared by photo-PISA of HPMA and 2-(dimethylamino)ethyl methacrylate (DMAEMA). Silica nanoparticles were subsequently released from the vesicles via CO2 bubbling at room temperature.