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基于苯乙炔基封端的酰亚胺低聚物的热固性树脂。

Phenylethynyl-Terminated Imide Oligomer-Based Thermoset Resins.

作者信息

Kim Minju, Kim Kiyeong, Lee Joon Hyuk, Jeon Eunkyung, Song Jungkun, Choi Jaeho, Yeo Hyeonuk, Nam Ki-Ho

机构信息

Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.

Agency for Defense Development, Yuseong P.O. Box 35, Daejeon 34186, Republic of Korea.

出版信息

Polymers (Basel). 2024 Oct 21;16(20):2947. doi: 10.3390/polym16202947.

DOI:10.3390/polym16202947
PMID:39458775
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11511106/
Abstract

Phenylethynyl-terminated imide (PETI) oligomers are highly valued for their diverse applications in films, moldings, adhesives, and composite material matrices. PETIs can be synthesized at varying molecular weights, enabling the fine-tuning of their properties to meet specific application requirements. Upon thermal curing, these oligomers form super-rigid network structures that enhance solvent resistance, increase glass-transition temperatures, and improve elastic moduli. Their low molecular weights and melt viscosities further facilitate processing, making them particularly suitable for composites and adhesive bonding. This review examines recent advancements in developing ultra-high-temperature PETIs, focusing on their structure-processing-properties relationships. It begins with an overview of the historical background and key physicochemical characteristics of PETIs, followed by a detailed discussion of PETIs synthesized from monomers featuring noncoplanar configurations (including kink and cardo structures), fluorinated groups, flexible linkages, and liquid crystalline mesogenic structures. The review concludes by addressing current challenges in this research field and exploring potential future directions.

摘要

苯乙炔基封端的酰亚胺（PETI）低聚物因其在薄膜、模制品、粘合剂和复合材料基体中的多种应用而备受重视。PETI可以在不同分子量下合成，从而能够微调其性能以满足特定的应用要求。热固化后，这些低聚物形成超刚性网络结构，增强耐溶剂性、提高玻璃化转变温度并改善弹性模量。它们的低分子量和熔体粘度进一步便于加工，使其特别适用于复合材料和粘合剂粘结。本综述考察了开发超高温PETI的最新进展，重点关注其结构-加工-性能关系。首先概述了PETI的历史背景和关键物理化学特性，随后详细讨论了由具有非共面构型（包括扭结和卡多结构）、氟化基团、柔性链段和液晶介晶结构的单体合成的PETI。综述最后讨论了该研究领域当前面临的挑战，并探索了潜在的未来发展方向。

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本文引用的文献

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Resin Transfer Moldable Fluorinated Phenylethynyl-Terminated Imide Oligomers with High T: Structure-Melt Stability Relationship.具有高玻璃化转变温度的可树脂传递模塑的含氟苯乙炔封端酰亚胺低聚物：结构与熔体稳定性的关系
Polymers (Basel). 2021 Mar 15;13(6):903. doi: 10.3390/polym13060903.
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Positron annihilation in cardo-based polymer membranes.
基于咔唑的聚合物膜中的正电子湮灭
J Phys Chem B. 2014 Jun 5;118(22):6007-14. doi: 10.1021/jp501706d. Epub 2014 May 21.
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Theoretical and experimental studies on the mechanism of coloration of polyimides.聚酰亚胺致色机制的理论与实验研究。
Chemphyschem. 2011 May 9;12(7):1367-77. doi: 10.1002/cphc.201000835. Epub 2011 Apr 27.