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Grafting Polymerization of D,L-Lactide on the Surface of Halloysite Nanotubes

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Abstract:

Halloysite nanotubes (HNTs) surface-grafting poly(D,L-lactide) (g-HNTs) were synthesized by bulk ring-opening polymerization of D,L-lactide using stannous octoate as catalyst and HNTs as co-initiator. Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), X-ray diffraction (XRD) and zeta potential measurement were employed to elucidate the structure and properties of HNTs before and after grafting with D,L-lactide. FTIR spectrum certified the existence of poly(D,L-lactide) chains on the surface of g-HNTs. The amount of surface-grafted poly(D,L-lactide) measured by TGA was 4.6% in weight. The grafted poly(D,L-lactide) chains on the surfaces of HNTs can relieve the clustering effect of HNTs to some extents.

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Applied Mechanics and Materials I View Preview

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

Pages:

1742-1745

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.1742

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Online since:

January 2013

Authors:

Jing Jing Li, Bing Hong Luo, Jin Xi Zhang, Ru Qiu Huo, Chang Ren Zhou

Keywords:

Characterization, Halloysite Nanotubes, Polylactide, Surface Grafting

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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