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A biocompatible block glycopolymeric dispersant: synthesis, characterization, and dispersing properties for nano-TiO2

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Abstract

A biocompatible block glycopolymer poly(methyl methacrylate)-b-poly(3-O-allyl-α-D-glucose) (PMAG) was employed as a polymeric dispersant for the dispersion of nano-TiO2. PMAG was prepared from methyl methacrylate (MMA) and 3-O-allyl-1,2:5,6-di-O-isopropynylene-α-D-glucose (ADG) via reversible addition-fragmentation chain transfer (RAFT) polymerization. The obtained product was characterized by Fourier transform infrared (FT-IR) spectroscopy, proton nuclear magnetic resonance (1H NMR) spectroscopy, and gel permeation chromatography (GPC). The copolymer showed good biocompatiblity by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The maximum adsorption capacity for PMAG on nano-TiO2 is 4.11 mg/g, which is in good agreement with Langmuir isotherm. Transmission electron microscopy (TEM) image indicated that nano-TiO2 is well dispersed by PMAG. Raman and FT-IR spectra demonstrated that PMAG is absorbed onto the surface of nano-TiO2.

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Acknowledgments

This work was supported by National Science Foundation of China (No. 21376124, 21006054) and Training Programs of Innovation for Undergraduates (No.201310304019Z).

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Correspondence to Jinli Zhu.

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Tang, Y., Xiang, R., Wang, M. et al. A biocompatible block glycopolymeric dispersant: synthesis, characterization, and dispersing properties for nano-TiO2 . Colloid Polym Sci 292, 2369–2374 (2014). https://doi.org/10.1007/s00396-014-3267-z

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  • DOI: https://doi.org/10.1007/s00396-014-3267-z

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