期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 136, 期 32, 页码 11268-11271出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja505956z
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资金
- Arkema
- CNRS
- ESPCI
Design of materials with polymer-like properties at service temperature but able to flow like simple liquids when heated remains one of the important challenges of supramolecular chemistry. Combining these antagonistic properties is highly desirable to provide durability, processability, and recyclability of materials. Here, we explore a new strategy based on polycondensation reactions to design supramolecular polymer materials with stress at break above 10 MPa and melt viscosity lower than 1 Pa center dot s. We report the synthesis and rheological and mechanical properties (uniaxial tensile tests) of supramolecular polymers based on a multiblock polyamide architecture. The flexibility of polycondensation reactions made it possible to control the molecular size distribution, the strength of hydrogen bonds, and the crystallization of middle and end groups and to achieve targeted properties.
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