Scholarlink

<p>Polymer modification alters their properties, such as hydrophobicity/hydrophilicity, crystallization, decomposition temperature, and mechanical properties. The functional groups in polymers facilitate surface modification, polymer grafting, and block copolymerization. Our present paper focuses explicitly on modifying polylactic acid (PLA) polymer through surface functionalization and block copolymerization. The addition of hydroxyl groups was found to modify the surface properties of PLA material. At the same time, the polymerization of lactic acid into methoxy polyethylene glycol (mPEG) led to the formation of a block copolymer. Each modified material was characterized using analytical tools and techniques, including Fourier-Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and the Zeta potential method. Results indicate that the addition of hydroxyl groups alters the surface properties of PLA, but not its properties, such as hydrophobicity. Furthermore, the synthesized PLA-PEG block copolymer exhibited distinct surface and bulk properties compared to the constituent monomers.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Novel synthesis and characterization of modified polylactic acid: Unveiling the effect of hydroxyl addition and block copolymerization

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月31日

查看全文
  • Ransford Damptey,
  • Sabrina Torres,
  • Laura Cummings,
  • Ram V. Mohan

摘要

Polymer modification alters their properties, such as hydrophobicity/hydrophilicity, crystallization, decomposition temperature, and mechanical properties. The functional groups in polymers facilitate surface modification, polymer grafting, and block copolymerization. Our present paper focuses explicitly on modifying polylactic acid (PLA) polymer through surface functionalization and block copolymerization. The addition of hydroxyl groups was found to modify the surface properties of PLA material. At the same time, the polymerization of lactic acid into methoxy polyethylene glycol (mPEG) led to the formation of a block copolymer. Each modified material was characterized using analytical tools and techniques, including Fourier-Transform Infrared Spectroscopy (FTIR), Nuclear Magnetic Resonance (NMR), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and the Zeta potential method. Results indicate that the addition of hydroxyl groups alters the surface properties of PLA, but not its properties, such as hydrophobicity. Furthermore, the synthesized PLA-PEG block copolymer exhibited distinct surface and bulk properties compared to the constituent monomers.

Graphical abstract