ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Properties of poly(lactic acid-co-glycolic acid) film modified by blending with polyurethane

Guo-Quan Zhu, Fa-Gang Wang, Hong-Sheng Tan, Qiao-Chun Gao, and Yu-Ying Liu

School of Materials Science and Engineering, Shandong University of Technology, Zibo, 255049, China

E-mail: fagangwang@126.com

Abstract: A number of poly(lactic acid-co-glycolic acid)/polyurethane (PLGA/PU) blend films with various PU mole contents were prepared by casting the polymer blend solution in chloroform. The surface morphologies of the PLGA/PU blend films were studied by scanning electron microscopy (SEM). The thermal, mechanical and chemical properties of the PLGA/PU blend films were investigated by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), tensile tests and surface contact angle tests. The results revealed that the introduction of PU could markedly modify the properties of PLGA films.

Keywords: morphology – properties – PLGA/PU blend film – SEM – DSC – TGA

Full paper is available at www.springerlink.com.

DOI: 10.2478/s11696-013-0438-1

Chemical Papers 68 (2) 246–252 (2014)