Poly(butylene 2,5-furandicarboxylate) copolyester obtained using 1,6-hexanediamine with high glass transition temperature

Ying Wang; Kunmei Su; Chengzhi Liu; Zhenhuan Li

doi:10.1039/d3ra06409c

Poly(butylene 2,5-furandicarboxylate) copolyester obtained using 1,6-hexanediamine with high glass transition temperature

RSC Adv. 2023 Dec 8;13(51):35816-35824. doi: 10.1039/d3ra06409c.

Authors

Ying Wang^{1

2}, Kunmei Su², Chengzhi Liu³, Zhenhuan Li³

Affiliations

¹ State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes, Tiangong University Tianjin 300387 China.
² School of Chemical Engineering and Technology, Tiangong University 300387 Tianjin China sukunmei@tiangong.edu.cn +86 022 8395055 +86 022 8395055.
³ School of Materials Science and Engineering, Tiangong University Tianjin 300387 PR China lizhenhuan@tiangong.edu.cn.

Abstract

A series of furan-based poly(ester amide)s, namely poly(butylene 2,5-furanoate)-co-(hexamethylene furanamide) (PBA_sF), were synthesized by partially substituting 1,4-butanediol (BDO) with linear hexamethylene diamine (HMDA). The introduction of amide bonding units enhances the intermolecular hydrogen bonding and intermolecular interaction forces, while the incorporation of flexible fragments results in a significant improvement in the thermal stability and mechanical properties of PBA_sF. PBA₂₀F exhibited an almost 50% increase in glass transition temperature, a mild improvement in tensile modulus of elasticity and tensile strength, and a tolerable decrease in elongation at break. Notably, the increased absorption in the UV wavelength range of PBA_sF is enhanced due to the increase in amide bonding, which increases UV degradability. Additionally, the discovery of treatment methods with excellent performance in dye rejection is another important aspect.