Biomacromolecules·· 13 小时前精选AI 评分62
全生物基PBTCF共聚酯通过樟脑酸衍生二醇调控实现性能与闭环回收兼顾
Toward Sustainable FDCA-Based Copolyesters: Integrating High Performance and Closed-Loop Recyclability through Camphoric Acid-Derived Structural Modulation
AI 导读
研究以2,5-呋喃二甲酸二甲酯、1,4-丁二醇和樟脑酸衍生的刚性环状二醇TCDM为原料，经两步熔融酯交换-缩聚合成全生物基PBTCF共聚酯。TCDM引入限制链段运动，使玻璃化转变温度从38.4 °C升至64.3 °C，并提升光学透明性和耐溶剂性；PBTCF3（3 mol% TCDM）的拉伸强度为55 MPa、断裂伸长率为500%。
推荐理由
全生物基呋喃二甲酸共聚酯在3 mol% TCDM下兼顾55 MPa强度与500%断裂伸长率，并给出闭环回收路线。
创新点
用樟脑酸衍生的刚性环状二醇TCDM对FDCA基共聚酯做结构调控，在提升Tg与耐溶剂性的同时保持高伸长率，并验证了单体级闭环回收再聚合后性能不降。
图表、补充材料与最终表述以原文为准。阅读原文
来源：Biomacromolecules · doi.org
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