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Morphology and properties of poly(lactic acid-co-glycolic acid) film improved by blending with poly(γ-benzyl l-glutamate)

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Abstract

A series of poly(lactic acid-co-glycolic acid) (PLGA)/poly(γ-benzyl l-glutamate) (PBLG) blend films were prepared by casting the polymer blend solution in chloroform. Surface morphologies of the PLGA/PBLG blend films were investigated by scanning electron microscopy. Thermal, mechanical, and chemical properties of PLGA/PBLG blend films were studied by differential scanning calorimetry, thermogravimetric analysis, tensile tests, and surface contact angle tests. The results displayed that when PBLG mole content is 4 %, the tensile strength and the maximum decomposition temperature of the polymer blend film are 20.2 MPa and 359 °C, respectively, suggesting that the polymer blend film holds both a better mechanical property and a better thermal property.

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Acknowledgments

This work is supported by the Natural Science Foundation of Shandong Province (No. ZR2011EMM009).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, People’s Republic of China

    Guoquan Zhu, Fagang Wang, Kejing Xu, Qiaochun Gao & Yuying Liu

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  1. Guoquan Zhu
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  2. Fagang Wang
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  3. Kejing Xu
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  4. Qiaochun Gao
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  5. Yuying Liu
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Correspondence to Fagang Wang.

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Zhu, G., Wang, F., Xu, K. et al. Morphology and properties of poly(lactic acid-co-glycolic acid) film improved by blending with poly(γ-benzyl l-glutamate). Res Chem Intermed 41, 1647–1655 (2015). https://doi.org/10.1007/s11164-013-1300-3

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