Synthesis and Characterization of MPS-g-PLA Copolymer and its Application in Surface Modification of Bacterial Cellulose

Author： Li Zhaoqian

Publisher： Taylor & Francis Ltd

ISSN： 1023-666X

Source： International Journal of Polymer Analysis and Characterization, Vol.15, Iss.4, 2010-05, pp. : 199-209

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Abstract

Polylactide-graft--methacryloxypropyltrimethoxysilane (MPS-g-PLA) was prepared by grafting MPS onto PLA. MPS-g-PLA was characterized by Fourier transform-infrared spectroscopy (FT-IR), hydrogen nuclear magnetic resonance (1H-NMR), and gel permeation chromatography. Furthermore, MPS-g-PLA was used to modify bacterial cellulose (BC), and the changes of surface properties of BC resulting from the treatment were followed by FT-IR and contact angle measurements. The results revealed that the modified BC possessed a much more hydrophobic nature than virgin BC. The surface modification of BC with MPS-g-PLA offers a way to increase the compatibility between the components in biocomposites, and thereby to improve the properties of these composites.