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Effects of preparation methods on the property of PMMA/SBA-15 mesoporous silica composites

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Abstract

In the paper, poly(methyl methacrylate)(PMMA)/SBA-15 composite materials were prepared by four different methods, that is, in-situ batch emulsion polymerization in the presence of mesoporous SBA-15, PMMA emulsion mixed with SBA-15 powder or dispersion in water, PMMA powder mixed with SBA-15 powder, and the properties of the composite materials were determined and compared. The composites were characterized by infrared spectroscopy (IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), dynamic mechanics analysis (DMA) and scanning electron microscope (SEM). The results showed that the glass transition temperatures (Tg), the storage modulus and tensile strength of the PMMA/SBA-15 composites were all improved obviously, while the thermal decomposition temperature did not influenced apparently. The composite made by in-situ batch polymerization exhibited the most improvement in the mechanical properties and Tg while the composite prepared by mixing PMMA emulsion and SBA-15 dispersion gave rise to the least improvement in the mechanical properties and Tg. These results were contributed to introducing different amount of voids into polymer matrix which were demonstrated by dielectric constant measurement and SEM morphology observation.

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Acknowledgements

Thanks to the financial support of national natural science fund of China (Granted No. 21064002), key laboratory of new material and processing technology of Guangxi Autonomous Region (0842003-5A).

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Authors and Affiliations

  1. Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, College of Material Science and Engineering, Guilin University of Technology, No 12 Jiangan Road, Guilin, 541004, People’s Republic of China

    Fa-Ai Zhang & Cheng Song

  2. College of chemistry and biochemistry, Guilin University of Technology, Guilin, 541004, People’s Republic of China

    Cai-Li Yu

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  1. Fa-Ai Zhang
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  2. Cheng Song
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Correspondence to Fa-Ai Zhang.

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Zhang, FA., Song, C. & Yu, CL. Effects of preparation methods on the property of PMMA/SBA-15 mesoporous silica composites. J Polym Res 18, 1757–1764 (2011). https://doi.org/10.1007/s10965-011-9582-x

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  • DOI: https://doi.org/10.1007/s10965-011-9582-x

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