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10:22 分钟
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2020年11月30日
2020年11月30日
•本文描述了一种面向循环材料经济的闭环方法示例。该方法构建了一个完整的可持续循环过程:通过聚合、解聚,再重新聚合,实现了生物基半芳香族聚酯的设计,且其产率和最终性能仅有轻微变化。
Chapters in this video
0:04
Introduction
1:15
Green Knoevenagel Condensation of Syringaldehyde Towards Sinapinic Acid with 5 Mol% Ammonium Bicarbonate
2:30
Hydrogenation of Sinapinic Acid Towards Dihydrosinapinic Acid with Nickel
3:45
Acetylation of Dihydrosinapinic Acid Towards Acetylated Monomers and Oligomers (prepolymer)
4:38
Polymerization of Acetylated Monomers and Oligomers
6:14
Representative Procedure for the Depolymerization of Poly-S in 1 M NaOH
7:26
Results: Step-growth Polycondensation of 4-Acetoxy-dihydrosinapinic Acid
9:36
Conclusion
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