Currently, there is a great demand for functional materials with effective pathogen-killing properties. In this research, we describe the use of green technology “reactive extrusion” for the synthesis of potent antimicrobial materials based on Ethylene-vinyl alcohol copolymer (EVOH). Herein, the antimicrobial agent, copper (II) acetate was used without pretreatment and introduced into the EVOH matrices at high temperatures. The thermal reaction of copper (II) acetate within the EVOH matrices and their effect on the thermal and thermomechanical properties of the polymer were investigated in regards to their concentration. The physicochemical, thermal, and rheological features, as well as, metal salt release kinetics were reported. The antimicrobial agent had significant effects on the properties of the matrix. Results showed a reduction in the glass transition temperatures and storage modulus of the materials in response to the incorporation of copper (II) acetate. Finally, the antimicrobial activity of the products was studied and demonstrated a possibility to create antimicrobial materials in a one-step, solvent-free extrusion process.

目前，对具有有效杀灭病原体特性的功能材料有很大的需求。在这项研究中，我们描述了使用绿色技术“反应挤出”来合成基于乙烯-乙烯醇共聚物 (EVOH) 的强效抗菌材料。在本文中，抗微生物剂醋酸铜 (II) 无需预处理即可使用，并在高温下引入 EVOH 基质中。研究了醋酸铜 (II) 在 EVOH 基质中的热反应及其对聚合物热和热机械性能的影响，涉及它们的浓度。报告了物理化学、热学和流变学特征以及金属盐释放动力学。抗菌剂对基质的性质有显着影响。结果表明，随着醋酸铜 (II) 的加入，材料的玻璃化转变温度和储能模量降低。最后，研究了产品的抗菌活性，并证明了在一步、无溶剂挤出过程中制造抗菌材料的可能性。