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Synthesis of ambient temperature self-crosslinking VTES-based core–shell polyacrylate emulsion via modified micro-emulsion polymerization process

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Abstract

Modified micro-emulsion polymerization was successfully used to synthesize a kind of ambient temperature self-crosslinking core–shell emulsion, consisting of polyacrylate core and vinyltriethoxysilane (VTES) modified polyacrylate shell, by varying the ratio of soft monomer (BA) and hard monomer (MMA) which is different in the core and shell. The emulsion and its film formed at ambient temperature were characterized by attenuated total reflectance-fourier transform infrared spectroscopy (ATR-FTIR), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA). Core–shell structure was clearly shown in TEM micrographs, and two distinct glass transition temperatures (T g) were confirmed by DSC analysis. Lower T g of core phase analyzed by DSC and self-crosslinking properties of VTES characterized by crosslinking degree cause latex particles form continuous film at ambient temperature. Thermal and mechanical properties and the surface properties of the latex films were also investigated. Results showed that the core–shell latex films containing 5 and 7.5 % VTES exhibited higher thermal stability, better mechanical properties, higher contact angle, and water resistance compared with pure polyacrylate film.

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Acknowledgments

This project was financially supported by the Natural Science Foundation of Guangdong Province of China (Project No: 8251065004000001).

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Authors and Affiliations

  1. Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou, 510650, People’s Republic of China

    Yun-fei Zhang, Lei Miao, Chao-long Yang & Man-geng Lu

  2. Graduate School of the Chinese Academy of Sciences, Beijing, 100039, People’s Republic of China

    Yun-fei Zhang, Lei Miao & Chao-long Yang

Authors
  1. Yun-fei Zhang
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  2. Lei Miao
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  3. Chao-long Yang
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  4. Man-geng Lu
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Correspondence to Man-geng Lu.

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Zhang, Yf., Miao, L., Yang, Cl. et al. Synthesis of ambient temperature self-crosslinking VTES-based core–shell polyacrylate emulsion via modified micro-emulsion polymerization process. Polym. Bull. 70, 1631–1645 (2013). https://doi.org/10.1007/s00289-012-0867-y

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  • DOI: https://doi.org/10.1007/s00289-012-0867-y

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