Synthesis and characterization of poly(methyl methacrylate-butyl acrylate)/nano-titanium oxide composite particles.

Gang Guo, Jie Yu, Zhu Luo, LiangXue Zhou, Hang Liang, Feng Luo, ZhiYong Qian

State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China.

Journal of nanoscience and nanotechnology 2011 Jun

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Poly(methyl methacrylate-butyl acrylate) [P(MMA-BA)]/nanosized titanium oxide (nano-TiO2) composite particles were prepared via insitu emulsion polymerization of MMA and BA in presence of nano-TiO2 particles. Before polymerization, the nano-TiO2 particles were modified by coupling agent. The structure and thermal properties of the obtained P(MMA-BA)/nano-TiO2 composite particles were characterized by Fourier transform infrared spectra (FTIR), wide-angle X-ray diffraction (WAXD) and thermogravimetric analysis (TGA). The results showed that there are covalent bond bindings between P(MMA-BA) and nano-TiO2 particles, meaning that P(MMA-BA) and nano-TiO2 particles were not simply blended or mixed up and that there is a strong interaction between P(MMA-BA) and nano-TiO2 particles. TGA and DSC measurements indicated an enhancement of thermal stability. Transmission electron microscopy (TEM) results showed that P(MMA-BA) enhanced the dispersibility of nano-TiO2 particles. The dispersion stabilization of modified nano-TiO2 particles in aqueous system was significantly improved due to the introduction of grafted polymer on the surface of nano-particles.

Citation

Gang Guo, Jie Yu, Zhu Luo, LiangXue Zhou, Hang Liang, Feng Luo, ZhiYong Qian. Synthesis and characterization of poly(methyl methacrylate-butyl acrylate)/nano-titanium oxide composite particles. Journal of nanoscience and nanotechnology. 2011 Jun;11(6):4923-8