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首页> 外文期刊>RSC Advances >Flexible and high performing polymer electrolytes obtained by UV-induced polymer-cellulose grafting
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Flexible and high performing polymer electrolytes obtained by UV-induced polymer-cellulose grafting

机译：通过紫外线诱导的聚合物纤维素接枝获得的柔性高性能聚合物电解质

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摘要

A novel UV-induced procedure, in the presence of glycidyl acrylate and proper radical/cationic photoinitiators, is here proposed to promote the in situ grafting of a methacrylic polymer network to the surface of natural cellulose fibers. As a result, composite polymer membranes reinforced by cellulose handsheets are obtained and demonstrate excellent mechanical features. The reactivity of the monomers is studied by FT-IR in real time measurements and the successful grafting is confirmed by surface spectroscopies. The polymer membranes prepared show high elastic modulus and tensile resistance and maintain high flexibility even after activation by swelling into a standard liquid electrolyte solution. The swelling procedure allowed us to obtain high ionic conductivity and remarkable electrochemical behavior when tested in laboratory scale lithium polymer cells. The system shows attractive features such as intrinsic safety, eco-compatibility, and low production cost and industrialization potentials, and is highly suitable for the rapidly expanding field of Li-based flexible batteries.
机译：本文提出了一种在丙烯酸缩水甘油酯和合适的自由基/阳离子光引发剂存在下的紫外线诱导新方法，以促进甲基丙烯酸聚合物网络在天然纤维素纤维表面的原位接枝。结果，获得了由纤维素手抄纸增强的复合聚合物膜，并显示出优异的机械性能。通过FT-IR在实时测量中研究单体的反应性，并通过表面光谱学证实了成功的接枝。制备的聚合物膜表现出高的弹性模量和拉伸强度，并且即使在通过溶胀成标准液体电解质溶液而活化后也保持高的柔韧性。在实验室规模的锂聚合物电池中测试时，溶胀过程使我们获得了高离子电导率和出色的电化学性能。该系统具有吸引人的功能，例如本质安全性，生态兼容性以及较低的生产成本和工业化潜力，非常适合快速发展的锂基柔性电池领域。

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