Improved Mechanical Properties of Poly(butylene succinate) Membrane by Co-electrospinning with Gelatin  

作　　者：Lu Chen Hui-Hui Cheng Jiang Xiong Ya-Ting Zhu Hong-Peng Zhang Xi Xiong Yu-Man Liu Jian Yu Zhao-Xia Guo 

机构地区：[1]Key Laboratory of Advanced Materials (Ministry of Education), Department of Chemical Engineering, Tsinghua University [2]Department of Vascular and Endovascular Surgery, Chinese PLA General Hospital

出　　处：《Chinese Journal of Polymer Science》2018年第9期1063-1069,共7页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51173093);Clinical Innovation Program of Chinese PLA General Hospital(No.2012FC-ZHCG-4001)

摘　　要：Gelatin, a natural proteinous polymer, was used to co-electrospin with poly（butylene succinate） （PBS） in order to improve the mechanical properties of PBS membrane and facilitate its applications in biomedical field. The PBS/gelatin blend membranes have narrower distribution of fiber diameter and smoother surface than neat PBS membrane. The contact angles, water absorption rates and water uptakes of the PBS/gelatin blend membranes were measured, showing increased hydrophilicity. The interaction between PBS and gelatin was investigated by attenuated total reflectance Fourier transform infrared spectroscopy （ATR-FTIR） and differential scanning calorimetry （DSC）. The mechanical properties of PBS/gelatin blend membranes in both dry and wet states were evaluated by uniaxial tensile tests. In the dry state, the PBS/gelatin blend membrane containing 10% gelatin has a 3-times increase in tensile strength without any adverse effect on ductility because of the existence of interaction between the two blend components, little change in crystallinity of PBS, and possible interaction between any adjacent fibers; the tensile strength and elongation at break are even better in the wet state attributed to some gelatin on fiber surfaces, which act as a binder in the presence of water. The potential applications of PBS/gelatin blend membranes were demonstrated by successful immobilization of thrombin, a clinically-used hemostatic drug. The thrombin-loaded membrane could be used for rapid hemostasis.Gelatin, a natural proteinous polymer, was used to co-electrospin with poly（butylene succinate） （PBS） in order to improve the mechanical properties of PBS membrane and facilitate its applications in biomedical field. The PBS/gelatin blend membranes have narrower distribution of fiber diameter and smoother surface than neat PBS membrane. The contact angles, water absorption rates and water uptakes of the PBS/gelatin blend membranes were measured, showing increased hydrophilicity. The interaction between PBS and gelatin was investigated by attenuated total reflectance Fourier transform infrared spectroscopy （ATR-FTIR） and differential scanning calorimetry （DSC）. The mechanical properties of PBS/gelatin blend membranes in both dry and wet states were evaluated by uniaxial tensile tests. In the dry state, the PBS/gelatin blend membrane containing 10% gelatin has a 3-times increase in tensile strength without any adverse effect on ductility because of the existence of interaction between the two blend components, little change in crystallinity of PBS, and possible interaction between any adjacent fibers; the tensile strength and elongation at break are even better in the wet state attributed to some gelatin on fiber surfaces, which act as a binder in the presence of water. The potential applications of PBS/gelatin blend membranes were demonstrated by successful immobilization of thrombin, a clinically-used hemostatic drug. The thrombin-loaded membrane could be used for rapid hemostasis.

关 键 词：PBS GELATIN ELECTROSPINNING Mechanical properties BLENDING 

分 类 号：TB43[一般工业技术]