| Title | Hybrid monomer design for unifying conflicting polymerizability, recyclability, and performance properties |
|---|---|
| ID_Doc | 29410 |
| Authors | Shi, CX; Li, ZC; Caporaso, L; Cavallo, L; Falivene, L; Chen, EYX |
| Title | Hybrid monomer design for unifying conflicting polymerizability, recyclability, and performance properties |
| Year | 2021 |
| Published | Chem, 7.0, 3 |
| Abstract | Intrinsically recyclable polymers represent a circular economy approach to address plastics problems. However, the design of such circular polymers is challenged by unyielding trade-offs between the monomer's polymerizability and the polymer's depoly-merizability and performance properties. Here, we introduce a hybrid monomer design strategy that synergistically couples a high ceiling temperature (HCT) sub-structure for high polymerizability and performance properties with a low ceiling temperature (LCT) sub-structure for high depolymerizability and recyclability within the same monomer structure. Thus, structural hybridization between HCT e-caprolactone and LCT g-butyrolactone led to an offspring [3.2.1]bicyclic lactone, which exhibits both high polymerizability and depolymerizability, otherwise conflicting properties in a typical monomer. The resulting polymer becomes a high-performance material, and thermal transition temperatures are similar to 200 degrees C higher and tensile modulus 103 higher than its parent polymers. These results demonstrate that the HCT/LCT hybrid monomer strategy is a powerful approach for designing circular polymers where conflicting properties must be exploited and unified. |
| http://www.cell.com/article/S245192942100053X/pdf |
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