A novel carbazole based bismaleimide monomer: Synthesis, characterization, thermal and optical properties

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2023-02-02 DOI:10.1177/09540083231155066

N. Karaca

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引用次数: 0

Abstract

In this study, a novel bismaleimide monomer: Carbazole-Bismaleimide (Cz-BisMI) was introduced to the literature as a first. Cz-BisMI was synthesized by a catalytic cyclodehydration reaction of 3,6-bismalemic acid carbazole which is an intermediate product obtained by an imidization reaction of 3,6-diamino carbazole. Then, the chemical structure of Cz-BisMI was elucidated by FT-IR, 1H NMR, 13C NMR and LC-MS spectroscopies. The thermal properties of Cz-BisMI were investigated by DSC in comparison with a commercial bismaleimide monomer, 4,4-bismaleimidophenylmethane (DPM-BisMI). Cz-BisMI has a melting point of 192°C and also, the onset temperature of the exothermic curve was measured as 293°C. Furthermore, it was determined that Cz-BisMI has a 35.6 percent larger processing window than DPM-BisMI. The spin-coated films of Cz-BisMI showed a high refractive index in the range of 1.61 to 1.50 between 400 and 650 nm with good transparency of over 85%. On the other hand, a new poly(bismaleimide): P(Cz-BisMI)s containing carbazole units was prepared by the self-polymerization process of Cz-BisMI. P(Cz-BisMI)s showed a high thermal transition temperature of 356°C. In conclusion, Cz-BisMI is a viable choice as a bismaleimide monomer for the development of opto-electronic materials due to its enhanced optical properties and thermal behavior.

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一种新型咔唑基双马来酰亚胺单体:合成、表征、热光学性质

在本研究中，首次将一种新型的双马来酰亚胺单体：咔唑-双马来亚胺（Cz-BisMI）引入文献。Cz-BisMI是由3,6-二氨基咔唑的酰亚胺化反应得到的中间体3,6-双马来酸咔唑催化环脱水反应合成的。然后，用FT-IR、1H NMR、13C NMR和LC-MS对Cz-BisMI的化学结构进行了表征。通过DSC研究了Cz-BisMI的热性能，并与商业双马来酰亚胺单体4，4-二马来酰亚胺苯基甲烷（DPM-BisMI）进行了比较。Cz-BisMI的熔点为192°C，并且测得放热曲线的起始温度为293°C。此外，确定Cz-BisMI具有比DPM BisMI大35.6%的处理窗口。Cz-BisMI的旋涂膜在400和650nm之间显示出1.61至1.50范围内的高折射率，并且具有超过85%的良好透明度。另一方面，通过Cz-BisMI的自聚合工艺制备了一种新的含有咔唑单元的聚双马来酰亚胺：P（Cz-BisMI）s。P（Cz-BisMI）s表现出356°C的高温转变温度。总之，Cz-BisMI由于其增强的光学性能和热行为，是开发光电子材料的双马来酰亚胺单体的可行选择。

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.