Monofilaments of isosorbide-based tetrapolyesters with enhanced (bio)degradability prepared by a solid-state drawing process: Synthesis and struture-property relations
Zhenguang Li,
Yaning Wang,
Jielin Xu,
Jing Wu,
Huaping Wang
Affiliations
Zhenguang Li
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China
Yaning Wang
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China
Jielin Xu
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China
Jing Wu
Co-Innovation Center for Textile Industry, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P.R. China; Corresponding author at: Innovation Center of Textile Science and Technology, Co-Innovation Center of Textile Industry, Donghua University, Shanghai 201620, PR China.
Huaping Wang
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China; Co-Innovation Center for Textile Industry, Innovation Center for Textile Science and Technology, Donghua University, Shanghai 201620, P.R. China
To enhance the degradation rate of poly (butylene adipate-co-terephthalate) (PBAT) in the natural environment and to investigate the effect of modified monomers on the molding and structure of copolyester fibers, a series of isosorbide modified PBAT (PBIAT) tetrapolyesters were synthesized and monofilaments were prepared by solid-state drawing in this work. The experimental results revealed that the introduction of isosorbide formed a partial block structure in the molecular chain, and that a significant improvement in the properties of heat resistance and degradability of the copolyester was observed with the introduction of isosorbide. In the research of fiber forming and structure-property relationship by isosorbide, it was found that although the monofilament orientation process was affected by the V-shape structure of isosorbide, the change of the crystal structure under stress was similar to that of polybutylene terephthalate (PBT). The PBIAT monofilaments showed a decrease in the strength at break affected by the introduction of isosorbide but they still met the requirements for textile applications.
