Scholarlink

<p>Environmentally friendly processes for recycling synthetic polymers have recently gained popularity, and living organisms and their enzymes are playing a key role in these processes. Herein we evaluated the degradation of a polyethylene terephthalate matrix by various ascomycete species. Within 30 days, polyethylene terephthalate was the only source of carbon for <i>Lecanicillum aphanocladii, Fusarium oxysporum, Talaromyces sayulitensis</i>, and <i>Trichoderma harzianum</i>. All the considered micromycetes were capable of utilizing polyethylene terephthalate, but the greatest weight loss (22%) was observed upon growing <i>Fusarium oxysporum</i>. DSC analysis revealed an increase in melting points by 2.5 °C and in the glass transition temperatures by 1–3 °C for all the treated samples of polyethylene terephthalate. Changes in chemical structure were estimated using IR spectroscopy, demonstrating various effects of the ascomycetes on the degradation of polymer matrix.</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

Impact of soil micromycetes on the structural characteristics of polyethylene terephthalate

  • 期刊论文

  • 发表日期：

    2025年10月1日

查看全文
  • Yu. V. Tertyshnaya,
  • N. N. Pozdnyakova,
  • M. V. Podzorova

摘要

Environmentally friendly processes for recycling synthetic polymers have recently gained popularity, and living organisms and their enzymes are playing a key role in these processes. Herein we evaluated the degradation of a polyethylene terephthalate matrix by various ascomycete species. Within 30 days, polyethylene terephthalate was the only source of carbon for Lecanicillum aphanocladii, Fusarium oxysporum, Talaromyces sayulitensis, and Trichoderma harzianum. All the considered micromycetes were capable of utilizing polyethylene terephthalate, but the greatest weight loss (22%) was observed upon growing Fusarium oxysporum. DSC analysis revealed an increase in melting points by 2.5 °C and in the glass transition temperatures by 1–3 °C for all the treated samples of polyethylene terephthalate. Changes in chemical structure were estimated using IR spectroscopy, demonstrating various effects of the ascomycetes on the degradation of polymer matrix.