医用生物材料——聚乙丙交酯PGLA(90/10)的研究

Study on Medical Biomaterials of Poly (glycolide-lactide)

利用搅拌反应釜合成了乙交酯和L-丙交酯的共聚物PGLA(90/10),并用自制的纺丝机对聚合物进行纺丝,得到PGLA(90/10)纤维。研究了聚合过程中特性黏度、单体转化率等的变化规律,应用IR、1H-NMR、DSC、TG、毛细管流变仪等对聚合物的结构、热性能、流变性能进行了表征。

Poly （glycolide-lactide） was synthesized by copolymerization of glycolide （GA） and L-lactide （LA） （GA/LA=90/10 in mol） in the stirred-tank reactor, then PGLA （90/10） fibers were obtained by melt spinning. The influences of polymerization time on the polymerization were studied in detail. The structure and properties of PGLA（90/10） were analyzed by IR, ^1H-NMR, DSC, TGA, capillary rheogeniometer.