Synthesis and characterization of new polyarylate containing phthalazinone moiety

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2025-01-11 DOI:10.1177/09540083251313822

Zeyuan Liu, Qian Liu, Peiqi Xu, Zhaoqi Wang, Danhui Wang, Xigao Jian, Shouhai Zhang

引用次数: 0

Abstract

Novel polyarylates containing phthalazinone moieties (PAR-PH) were synthesized and characterized by co-solvent interfacial polymerization based on 4-(4′-hydroxyphenyl)-2,3-phthalazin-1-one (DHPZ) and isophthaloyl chloride (IPC). Effects of inorganic bases, monomer concentration, phase transfer catalysts and co-solvents on the interfacial polymerization reaction were investigated. When the organic phase solvent was cyclohexane with 3% butanone and 18-crown-6 was the phase transfer catalyst, PAR-PH achieved a maximum intrinsic viscosity ( η int ) up to 0.52 dL/g. For some organic phase solvents of alkanes and chlorinated hydrocarbons, the addition of co-solvents increased the η int of the polymer. PAR-PH exhibit excellent thermal resistance due to the introduction of rigid twisted phthalazinone moieties into the polymer main chains, with glass transition temperature ( T g ) of 275°C. The 5% thermal weight loss temperature of PAR-PH was 463°C in N 2 and residual mass ratios at 800°C of 52.0%, demonstrating excellent thermal stability.

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新型酞嗪酮类聚芳酯的合成与表征

以4-（4′-羟基苯基）-2,3-酞嗪-1-酮（DHPZ）和异酞酰氯（IPC）为原料，采用共溶剂界面聚合的方法合成了新型酞嗪酮类聚芳酯（PAR-PH）。考察了无机碱、单体浓度、相转移催化剂和助溶剂对界面聚合反应的影响。当有机相溶剂为环己烷和3%丁酮，相转移催化剂为18-冠-6时，PAR-PH的最大特征粘度（η int）可达0.52 dL/g。对于某些烷烃和氯化烃的有机相溶剂，助溶剂的加入提高了聚合物的η int。由于在聚合物主链中引入了刚性扭曲的酞嗪酮基团，PAR-PH具有优异的耐热性，玻璃化转变温度（T g）为275℃。PAR-PH在氮气中5%热失重温度为463℃，800℃时残余质量比为52.0%，表现出良好的热稳定性。

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.