https://www.cas.cn/syky/202507/t20250722_5077340.shtml
https://pubs.acs.org/doi/10.1021/acsnano.5c09387
Renewable bio-based materials might partially replace traditional plastics and promote sustainable development. A promising bio-based platform are 2,5-furandicarboxylic acid-based polyesters.
A research team of CAS Ningbo Institute of Materials Technology and Engineering has proposed a nano-confined crystallization strategy to construct high-performance biomimetic pseudo-mineralized polyester materials from FDC polyesters. The team designed and in-situ synthesized titanium dioxide nanoparticles grafted with ultra-large aspect ratio boron nitride nanosheets as a layered template to induce in-situ confined crystallization and oriented growth of polyfurandicarboxylic acid butylene glycol in a two-dimensional nanospace, forming an ordered “brick-mud” polyester composite material (PMP).
The PMP material has a tensile strength of 92MPa and a modulus of 3.1GPa, while maintaining an elongation at break of more than 173%. The oxygen barrier property is increased by 5 times, and it has excellent UV shielding ability. The nano-confined crystallization strategy solves a key problem that bio-based furan polyester is difficult to achieve a “strength-toughness-barrier”.
