Design of photosensitive polyimides with improved solubility, thermal stability and mechanical strength

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2025-07-11 DOI:10.1177/09540083251358869

Bowen Zheng, Jing Li, Ning Li, Wa Li, Shuai Zhang, Haile Lei

引用次数: 0

Abstract

The preparation of soluble photosensitive polyimides maintaining high mechanical properties is a challenge. By synthesizing cross-linked interpenetrating polymer networks (IPNs) composed of polyacrylate and polyimide, soluble photosensitive polyimides with high mechanical properties were successfully developed. Isophorone diamine (IPDA) was introduced as a bulky group into the polymer backbone, significantly improving the solubility of PAE. PAE demonstrated a solubility of 55 wt% in N,N-dimethylformamide (DMF). Following photopolymerization, PAE was subjected to thermal treatment, leading to the formation of IPNs composed of polyimide and polyacrylate. This process enhanced the mechanical properties, yielding a tensile strength of 122.73 MPa, a breaking elongation of 4.76%, a Young’s modulus of 5.5 GPa, and a hardness of 0.51 GPa.

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提高溶解度、热稳定性和机械强度的光敏聚酰亚胺的设计

制备具有高机械性能的可溶性光敏聚酰亚胺是一个挑战。通过合成由聚丙烯酸酯和聚酰亚胺组成的交联互穿聚合物网络（ipn），成功地制备了具有高力学性能的水溶性光敏聚酰亚胺。异福尔酮二胺（IPDA）作为一个庞大的基团被引入到聚合物主链中，显著提高了PAE的溶解度。PAE在N，N-二甲基甲酰胺（DMF）中的溶解度为55 wt%。光聚合后，PAE进行热处理，形成由聚酰亚胺和聚丙烯酸酯组成的ipn。该工艺提高了材料的力学性能，拉伸强度为122.73 MPa，断裂伸长率为4.76%，杨氏模量为5.5 GPa，硬度为0.51 GPa。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.