Scholarlink

<p>In this paper, rigid polybenzenedimethanol ester/terephthalic acid-co-butyl adipate (PBPAT) was prepared introducing rigid 1,4-benzenedimethanol (PXG) monomers into the molecular chain of polybutylene terephthalate (PBAT) via melt polycondensation. The co-polyesters were structurally characterized using Fourier transform infrared spectroscopy (FTIR) and liquid–solid nuclear magnetic resonance (<sup>1</sup>H-NMR). Molecular weight, thermal properties, crystallinity, and hydrophilicity were further analyzed using gel permeation chromatography (GPC), X-ray diffractometer (XRD), differential scanning calorimeter (DSC), integrated thermal analyzer (TGA), and contact angle measurements. The mechanical properties of PBPAT were evaluated using a universal tensile testing machine and a rotational rheometer. The results indicated that the molecular weight of PBPAT reached 3.54 × 10<sup>4</sup> g/mol. The crystallinity increased from 11.57 to 14.07% compared to PBAT. Moreover, the tensile strength enhanced from 17.70 to 25.21 MPa, while the elastic modulus increased from 132.28 to 208.66 MPa compared to PBAT.</p> Graphical Abstract <p>In this paper, a series of novel poly(terephthalic acid-co-caproic acid terephthalate/terephthalic acid-co-caproic acid butylene terephthalate) (PBPAT) with varying PXG contents were prepared via melt polycondensation method using terephthalic acid, adipic acid, 1,4-butanediol, and 1,4-benzenedimethanol as raw materials. The influence of PXG on the mechanical, thermal, and hydrophilic properties of the copolyester was systematically investigated.</p> <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis and properties of 1,4-benzenedimethanol-modified PBAT copolyesters

  • 期刊论文

  • 发表日期：

    2025年5月29日

查看全文
  • Xiaofeng He,
  • Shuang Zhang,
  • Xiaofeng Liu,
  • Yang Yu,
  • Qi Yue,
  • Tiejun Ge

摘要

In this paper, rigid polybenzenedimethanol ester/terephthalic acid-co-butyl adipate (PBPAT) was prepared introducing rigid 1,4-benzenedimethanol (PXG) monomers into the molecular chain of polybutylene terephthalate (PBAT) via melt polycondensation. The co-polyesters were structurally characterized using Fourier transform infrared spectroscopy (FTIR) and liquid–solid nuclear magnetic resonance (1H-NMR). Molecular weight, thermal properties, crystallinity, and hydrophilicity were further analyzed using gel permeation chromatography (GPC), X-ray diffractometer (XRD), differential scanning calorimeter (DSC), integrated thermal analyzer (TGA), and contact angle measurements. The mechanical properties of PBPAT were evaluated using a universal tensile testing machine and a rotational rheometer. The results indicated that the molecular weight of PBPAT reached 3.54 × 104 g/mol. The crystallinity increased from 11.57 to 14.07% compared to PBAT. Moreover, the tensile strength enhanced from 17.70 to 25.21 MPa, while the elastic modulus increased from 132.28 to 208.66 MPa compared to PBAT.

Graphical Abstract

In this paper, a series of novel poly(terephthalic acid-co-caproic acid terephthalate/terephthalic acid-co-caproic acid butylene terephthalate) (PBPAT) with varying PXG contents were prepared via melt polycondensation method using terephthalic acid, adipic acid, 1,4-butanediol, and 1,4-benzenedimethanol as raw materials. The influence of PXG on the mechanical, thermal, and hydrophilic properties of the copolyester was systematically investigated.