Scholarlink

Abstract <p>Using biodegradable polymer, polylactide, two composites containing 5 wt % fillers, which are star-shaped macromolecules with a branching center, C<sub>60</sub> fullerene, and grafted polymer arms of various nature, have been synthesized. The structural features and mechanical properties of the prepared film membranes were studied. The density and contact angles were determined to characterize the physical properties. The transport properties were studied by measuring the permeability of He, O<sub>2</sub>, N<sub>2</sub>, and CО<sub>2</sub>. It is shown that the incorporation of star-shaped modifiers into the polylactide matrix leads to a slight decrease in the permeability coefficients for all gases, but the ideal selectivity for O<sub>2</sub>/N<sub>2</sub>, Hе/N<sub>2</sub>, and CО<sub>2</sub>/N<sub>2</sub> gas pairs increases.</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

Structural Features and Transport Properties of Hybrid Membranes Based on Polylactide with Additives of Star-Shaped Macromolecules

  • 期刊论文

  • 发表日期：

    2025年6月1日

查看全文
  • A. Yu. Pulyalina,
  • M. E. Gogunov,
  • O. R. Karpukhin,
  • I. S. Kuryndin,
  • A. V. Aksentiev,
  • G. A. Polotskaya

摘要

Abstract

Using biodegradable polymer, polylactide, two composites containing 5 wt % fillers, which are star-shaped macromolecules with a branching center, C60 fullerene, and grafted polymer arms of various nature, have been synthesized. The structural features and mechanical properties of the prepared film membranes were studied. The density and contact angles were determined to characterize the physical properties. The transport properties were studied by measuring the permeability of He, O2, N2, and CО2. It is shown that the incorporation of star-shaped modifiers into the polylactide matrix leads to a slight decrease in the permeability coefficients for all gases, but the ideal selectivity for O2/N2, Hе/N2, and CО2/N2 gas pairs increases.