Fabrication and characterization of modified POD membranes with ultra-high tensile strength through hydrogen bonding functioning and copolymerization

IF 1.8 4区化学 Q3 POLYMER SCIENCE High Performance Polymers Pub Date : 2023-12-02 DOI:10.1177/09540083231219780

Mengxiang Huang, Lihong Li, Wen-Guang Xie, Ni Yan, Limin Yuan, Zhiqiang Zhu, Zhenlin Jiang

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Abstract

A series of modified aromatic oxadiazole polymers were synthesized via condensation reactions of terephthalic dihydrazide (TPH) and varying amounts of Trimesic acid (H3BTC) in polyphosphoric acid (PPA). Pentaerythritol was introduced to construct intermolecular hydrogen bonds among polymeric chains, resulting in a three-dimensional network structure, and correlations between H-bonds and mechanic properties are discussed. Structures and mechanic properties of the polymers were characterized and analyzed. By investigation of molecular structure and membrane formation process of chemically modified and hydrogen bond-regulated polymer membranes, it was found that the modified polymer membranes retain the unique thermal stability, chemical stability, and good hydrophobicity of the POD rigid polymer. Additionally, hydrogen bonds not only significantly improve the overall quality of the membrane, but also play an important role in enhancing the mechanical properties of the membrane, as demonstrated in the highest observed of up to a maximum of 167.19 MPa. Furthermore, impact of H3BCT modification on light absorption and fluorescence performance of T-PODx is also analyzed and discussed in this paper.

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通过氢键功能和共聚作用制造具有超高拉伸强度的改性 POD 膜并确定其特性

以对苯二甲酸二肼(TPH)和不同量的三聚酸(H3BTC)为原料，在聚磷酸(PPA)中缩合反应，合成了一系列芳香型恶二唑改性聚合物。引入季戊四醇在聚合物链之间构建分子间氢键，形成三维网络结构，并讨论了氢键与力学性能的关系。对聚合物的结构和力学性能进行了表征和分析。通过对化学改性和氢键调控聚合物膜的分子结构和成膜过程的研究，发现改性后的聚合物膜保留了POD刚性聚合物特有的热稳定性、化学稳定性和良好的疏水性。此外，氢键不仅显著提高了膜的整体质量，而且在提高膜的力学性能方面也发挥了重要作用，最高可达167.19 MPa。此外，本文还分析讨论了H3BCT改性对T-PODx光吸收和荧光性能的影响。

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来源期刊

High Performance Polymers 化学-高分子科学

CiteScore

4.20

自引率

14.30%

发文量

106

审稿时长

1.2 months

期刊介绍： Health Services Management Research (HSMR) is an authoritative international peer-reviewed journal which publishes theoretically and empirically rigorous research on questions of enduring interest to health-care organizations and systems throughout the world. Examining the real issues confronting health services management, it provides an independent view and cutting edge evidence-based research to guide policy-making and management decision-making. HSMR aims to be a forum serving an international community of academics and researchers on the one hand and healthcare managers, executives, policymakers and clinicians and all health professionals on the other. HSMR wants to make a substantial contribution to both research and managerial practice, with particular emphasis placed on publishing studies which offer actionable findings and on promoting knowledge mobilisation toward theoretical advances. All papers are expected to be of interest and relevance to an international audience. HSMR aims at enhance communication between academics and practitioners concerned with developing, implementing, and analysing health management issues, reforms and innovations primarily in European health systems and in all countries with developed health systems. Papers can report research undertaken in a single country, but they need to locate and explain their findings in an international context, and in international literature.