| Title: | Nanocomposite Polymer Colloids Prepared via Emulsion Polymerization and Stabilized Using Polydopamine-Coated Silica Particles |
| Author(s): | Xu A; Zhang T; Zhan C; Wei H; Ip HT; Hong L; Ngai T; |
| Address: | "Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China. Department of Chemistry, The Chinese University of Hong Kong, Shatin N.T., Hong Kong, China. Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China" |
| DOI: | 10.1021/acs.langmuir.1c03441 |
| ISSN/ISBN: | 1520-5827 (Electronic) 0743-7463 (Linking) |
| Abstract: | "Polymer/inorganic colloidal nanocomposites can be prepared via Pickering emulsion polymerization (PEP); however, this process usually requires the use of surfactants, auxiliary comonomers, and volatile organic compounds. Herein, we report a versatile and efficient method for synthesizing stable monodisperse polymer/silica colloidal nanocomposite particles via PEP. First, silica nanoparticles were modified by depositing a multifunctional polydopamine (PDA) film. The outermost PDA film could enhance the precipitation of oligomeric polymer radicals on the silica surface, which is crucial for the preparation of stable polymer/inorganic colloidal nanocomposites via PEP. Notably, this PDA modification approach can employ different initiator systems, such as cationic initiators and redox initiator couples, and can be applied to various monomers and monomer pairs (St, St/nBA, MMA, MMA/nBA, Vac, Vac/nBA). The influence of the concentration and size of polydopamine-coated silica (SiO(2)@PDA) on the colloidal nanocomposite was investigated. Increasing the diameter of SiO(2)@PDA and decreasing the concentration of SiO(2)@PDA both lead to the formation of larger nanocomposite particles. Considering its wide applicability, the proposed PDA modification approach can be applied to other functional inorganic particles to prepare multifunctional polymer/inorganic nanocomposite particles" |
| Notes: | "PubMed-not-MEDLINEXu, Anli Zhang, Tongtong Zhan, Chengdong Wei, Hongxin Ip, Hiu To Hong, Liangzhi Ngai, To eng 2022/04/29 Langmuir. 2022 May 10; 38(18):5454-5463. doi: 10.1021/acs.langmuir.1c03441. Epub 2022 Apr 28" |
