当前位置：
X-MOL 学术
›
Macromolecules
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Ring-Opening Polymerization of a Seven-Membered Lactone toward a Biocompatible, Degradable, and Recyclable Semi-aromatic Polyester
Macromolecules ( IF 5.1 ) Pub Date : 2023-03-14 , DOI: 10.1021/acs.macromol.2c02172 Mao-Qin Li 1 , Zi-Xuan Luo 1 , Xiao-Yan Yu 1 , Guo-Qiang Tian 1 , Gang Wu 1 , Si-Chong Chen 1 , Yu-Zhong Wang 1
Macromolecules ( IF 5.1 ) Pub Date : 2023-03-14 , DOI: 10.1021/acs.macromol.2c02172 Mao-Qin Li 1 , Zi-Xuan Luo 1 , Xiao-Yan Yu 1 , Guo-Qiang Tian 1 , Gang Wu 1 , Si-Chong Chen 1 , Yu-Zhong Wang 1
Affiliation
|
The widespread use of polymer materials and their improper disposal have resulted in significant environmental pollution and wastage of resources. Therefore, the design of chemically recyclable, environmentally compatible, and applicable polymers represents a new approach for a green and circular polymer economy, and it has become a major focus worldwide. Herein, we efficiently synthesized a seven-membered ether lactone, 3,4-dihydro-2H-benzo[b][1,4]dioxepin-2-one (BDXO), through a one-step reaction and successfully realized its controlled ring-opening polymerization (ROP). The ROP of BDXO in bulk and solvent conditions catalyzed by Sn(Oct)2 was investigated systematically, and the thermodynamic parameters obtained were ΔSP0 = −30.90 J·mol–1·K–1 and ΔHP0 = −14.52 kJ·mol–1. The PBDXO polymer exhibits excellent thermal properties, applicable mechanical properties, excellent biocompatibility, and complete hydrolytic degradability. Notably, not only was the direct chemical recycling of PBDXO to BDXO monomer realized with high efficiency through bulk thermal depolymerization with a yield greater than 92% and a purity of up to 96% but also the regenerated PBDXO with almost the same structure and properties as the initial PBDXO was obtained through repolymerization of the recycled BDXO, establishing a polymer–monomer–polymer closed-loop life cycle.
中文翻译：
七元内酯开环聚合制备生物相容性、可降解、可回收的半芳香族聚酯
高分子材料的广泛使用及其处置不当造成了严重的环境污染和资源浪费。因此，设计化学可回收、环境兼容和适用的聚合物代表了绿色和循环聚合物经济的新途径，已成为全球关注的焦点。在此，我们通过一步反应高效合成了一种七元醚内酯，3,4-二氢-2H-苯并[ b ][1,4]二恶英-2-酮(BDXO)，并成功实现了其可控开环聚合 (ROP)。系统研究了Sn(Oct) 2催化BDXO在本体和溶剂条件下的ROP ，得到的热力学参数为ΔSP0 = −30.90 J·mol –1 ·K –1和 Δ H P 0 = −14.52 kJ·mol –1。PBDXO聚合物具有优异的热性能、适用的机械性能、优异的生物相容性和完全水解降解性。值得注意的是，不仅通过本体热解聚实现了 PBDXO 直接化学回收为 BDXO 单体的高效率，收率大于 92%，纯度高达 96%，而且再生的 PBDXO 的结构和性能几乎与最初的 PBDXO 是通过回收的 BDXO 再聚合获得的，建立了聚合物-单体-聚合物的闭环生命周期。
更新日期：2023-03-14
中文翻译：
七元内酯开环聚合制备生物相容性、可降解、可回收的半芳香族聚酯
高分子材料的广泛使用及其处置不当造成了严重的环境污染和资源浪费。因此，设计化学可回收、环境兼容和适用的聚合物代表了绿色和循环聚合物经济的新途径，已成为全球关注的焦点。在此，我们通过一步反应高效合成了一种七元醚内酯，3,4-二氢-2H-苯并[ b ][1,4]二恶英-2-酮(BDXO)，并成功实现了其可控开环聚合 (ROP)。系统研究了Sn(Oct) 2催化BDXO在本体和溶剂条件下的ROP ，得到的热力学参数为ΔSP0 = −30.90 J·mol –1 ·K –1和 Δ H P 0 = −14.52 kJ·mol –1。PBDXO聚合物具有优异的热性能、适用的机械性能、优异的生物相容性和完全水解降解性。值得注意的是，不仅通过本体热解聚实现了 PBDXO 直接化学回收为 BDXO 单体的高效率，收率大于 92%，纯度高达 96%，而且再生的 PBDXO 的结构和性能几乎与最初的 PBDXO 是通过回收的 BDXO 再聚合获得的，建立了聚合物-单体-聚合物的闭环生命周期。
京公网安备 11010802027423号