Polymerization and Characterization of Functionalized Poly(L-Lactide)

Yu Shun Jin; Fei Xiao; Wen Li Guo

doi:10.4028/www.scientific.net/MSF.620-622.595

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Study of Nano-Hydroxyapatite/Polycarbonate Composite for Bone Repair
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Fabrication of a High Performance Ti Alloy Implant for an Artificial Hip Joint
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Polymerization and Characterization of Functionalized Poly(L-Lactide)
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Synthesis of Fluorine-Containing Organic Silane Reagent
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The Comprehensive Utilization of EAF Dust and Pickling Sludge of Stainless Steel Works
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Design of Inner Wedge-Form Tool in Precision Recycle of Digital Paper Display
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Removal of Zn (II) from Aqueous Solution by Copolymer of Grafting Acrylic Acid onto Deacetylated Konjac Glucomannan
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Polymerization and Characterization of Functionalized Poly(L-Lactide)

Abstract:

Functional poly(L-lactide) (PLLA-OH) containing vinyl groups as well as hydroxyl end groups was synthesized by ring-opening polymerization (ROP), using stannous octanoate as the catalyst and 2-hydroxyethyl methacrylate (HEMA) as the initiator. The structure of the obtained PLLA-OH was characterized using both Fourier Transform Infrared (FT-IR) spectroscopy and 1H nuclear magnetic resonance (1H-NMR) spectroscopy, while their crystallinities and thermo behavior were studied by differential scanning calorimetry (DSC), separately. The best condition for the ROP of the studied PLLA-OH was found with the polymerization temperature of T= 145 °C, the weight percent of the catalyst of 0.03 wt%, the ROP duration of 48 h and the L-lactide/initiator molar ratio of 100/1.