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Development and Digital Light Processing 3D Printing of a Vitrimer Composed of Glycerol 1,3-Diglycerolate Diacrylate and Tetrahydrofurfuryl Methacrylate
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2023-08-21 , DOI: 10.1021/acsapm.3c01018
Sigita Grauzeliene 1 , Anne-Sophie Schuller 2 , Christelle Delaite 2 , Jolita Ostrauskaite 1
Affiliation  

The development of biobased reshapable and repairable vitrimers has received extensive attention due to the growing focus on an environmentally friendly society. Therefore, the objective of this research was to synthesize sustainable polymers with an environmentally friendly strategy combining the benefits of renewable resources, UV curing, and vitrimers. Two biobased monomers, glycerol 1,3-diglycerolate diacrylate and tetrahydrofurfuryl methacrylate, were chosen for the preparation of UV-curable resins and tested by real-time photorheometry and RT-FTIR spectroscopy to determine their suitability for digital light processing (DLP) 3D printing. DLP 3D-printed polymer showed shape memory, weldability, and repairability capabilities by triggering the dynamic transesterification process at high temperatures. The vitrimer with a weight ratio of 60:40 of glycerol 1,3-diglycerolate diacrylate and tetrahydrofurfuryl methacrylate showed shape memory properties with a recovery ratio of 100% and a 7-fold improved tensile strength compared to the original sample, confirming efficient weldability and repairability.

中文翻译:

由甘油1,3-二甘油酯二丙烯酸酯和甲基丙烯酸四氢糠酯组成的Vitrimer的开发和数字光处理3D打印

由于人们对环境友好型社会的日益关注,生物基可重塑和可修复的玻璃体的开发受到了广泛的关注。因此,本研究的目标是结合可再生资源、紫外线固化和玻璃体的优点,采用环保策略合成可持续聚合物。选择两种生物基单体,即二丙烯酸甘油酯 1,3-二甘油酯和甲基丙烯酸四氢糠酯,用于制备 UV 固化树脂,并通过实时光流变测定法和 RT-FTIR 光谱进行测试,以确定它们对数字光处理 (DLP) 3D 打印的适用性。DLP 3D 打印聚合物通过在高温下触发动态酯交换过程而显示出形状记忆、可焊接性和可修复性能力。甘油1,3-二甘油酯二丙烯酸酯和甲基丙烯酸四氢糠酯的重量比为60:40的vitrimer表现出形状记忆性能,恢复率为100%,与原始样品相比,拉伸强度提高了7倍,证实了有效的可焊性和可修复性。
更新日期:2023-08-21
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