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Synthesis, Characterization and Properties of Poly(butylene succinate) Reinforced by Trimellitic Imide Units
Author(s) -
Liu Xiaoqing,
Li Chuncheng,
Zhang Dong,
Xiao Yaonan
Publication year - 2006
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200500564
Subject(s) - copolyester , imide , differential scanning calorimetry , gel permeation chromatography , polymer chemistry , materials science , fourier transform infrared spectroscopy , infrared spectroscopy , thermogravimetric analysis , ultimate tensile strength , polymer , chemistry , chemical engineering , organic chemistry , composite material , polyester , engineering , thermodynamics , physics
Summary: A series of high molecular weight poly(butylene succinate) copolyester containing rigid imide units were synthesized in this paper. The chemical structure and composition of the copolyesters were determined by 1 H NMR spectroscopy and Fourier transform infrared spectroscopy (FT‐IR). Gel permeation chromatography (GPC) was employed to determine the molecular weight and molecular weight distribution. The differential scanning calorimetry (DSC) technique showed that the melting temperature ( T m ) of the copolyester decreased slightly with the increment in trimellitic imide unit content. When the imide unit content was increased to 6.3 mol‐%, it had an elongation at break of 510% (83% higher than that of PBS) and a tensile strength of 37 MPa (7% higher than that of PBS). The changes in mechanical properties of the copolyester might be owed to the compositive effects of spherulitic morphology and imide units.FT‐IR spectra of PBS and PBST.