• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

含氧化钕的改性苯乙炔基封端聚酰亚胺的制备与性能

Preparation and Properties of Modified Phenylethynyl Terminated Polyimide with Neodymium Oxide.

作者信息

Zhang Peng, Liu Hansong, Yao Yilun, Yang Tao, Sun Jinsong, Zhong Xiangyu, Bao Jianwen, Zhao Yan, Chen Xiangbao

机构信息

School of Materials Science and Engineering, Beihang University, Beijing 100191, China.

AVIC Composite Technology Center, AVIC Composite Corporation Ltd., Beijing 101300, China.

出版信息

Materials (Basel). 2022 Jun 10;15(12):4148. doi: 10.3390/ma15124148.

DOI:10.3390/ma15124148
PMID:35744207
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9227634/
Abstract

Modified phenylethynyl terminated polyimides (PIs) were successfully prepared by using neodymium oxide (NdO) via high-speed stirring and ultrasonic dispersion methods. In addition, the structure and properties of the NdO-modified imide oligomers as well as the thermo-oxidative stability of the modified polyimides (PI/NdO hybrid) and its modification mechanism were investigated in detail. The thermogravimetric analysis (TGA) results indicated that the 5% decomposition temperature (Td5%) of the PI/NdO hybrids improved from 557 °C to 575 °C, which was also verified by the TGA-IR tests. Meanwhile, the weight loss rate of the PI/NdO hybrids significantly decreased by 28% to 31% compared to that of pure PI under isothermal aging at 350 °C for 450 h when the added content of NdO was between 0.4 wt% and 1 wt%, showing outstanding thermo-oxidative stability. Moreover, the mechanism of the enhanced thermo-oxidative stability for the modified PIs was analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD).

摘要

通过高速搅拌和超声分散法，利用氧化钕（NdO）成功制备了改性乙炔基封端聚酰亚胺（PI）。此外，还详细研究了NdO改性酰亚胺低聚物的结构与性能，以及改性聚酰亚胺（PI/NdO杂化材料）的热氧化稳定性及其改性机理。热重分析（TGA）结果表明，PI/NdO杂化材料的5%分解温度（Td5%）从557℃提高到了575℃，TGA-IR测试也证实了这一点。同时，当NdO的添加量在0.4 wt%至1 wt%之间时，在350℃等温老化450 h条件下，PI/NdO杂化材料的失重率相比纯PI显著降低了28%至31%，显示出优异的热氧化稳定性。此外，通过扫描电子显微镜（SEM）和X射线衍射（XRD）分析了改性PI热氧化稳定性增强的机理。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/b3506db006bf/materials-15-04148-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/c620c5ff3047/materials-15-04148-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/49184b3bf0a6/materials-15-04148-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/f76859b0402c/materials-15-04148-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/cc0c8d331d66/materials-15-04148-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/8d1f7f1ca172/materials-15-04148-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/e9d58ceee8fd/materials-15-04148-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/ff180766e1c3/materials-15-04148-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/c8a7fcfc9311/materials-15-04148-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/49072f6499d1/materials-15-04148-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/6e550f3d10a6/materials-15-04148-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/9ccd79d37d99/materials-15-04148-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/45a155f80541/materials-15-04148-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/b3506db006bf/materials-15-04148-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/c620c5ff3047/materials-15-04148-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/49184b3bf0a6/materials-15-04148-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/f76859b0402c/materials-15-04148-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/cc0c8d331d66/materials-15-04148-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/8d1f7f1ca172/materials-15-04148-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/e9d58ceee8fd/materials-15-04148-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/ff180766e1c3/materials-15-04148-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/c8a7fcfc9311/materials-15-04148-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/49072f6499d1/materials-15-04148-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/6e550f3d10a6/materials-15-04148-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/9ccd79d37d99/materials-15-04148-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/45a155f80541/materials-15-04148-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c744/9227634/b3506db006bf/materials-15-04148-g013.jpg

相似文献

1
Preparation and Properties of Modified Phenylethynyl Terminated Polyimide with Neodymium Oxide.含氧化钕的改性苯乙炔基封端聚酰亚胺的制备与性能
Materials (Basel). 2022 Jun 10;15(12):4148. doi: 10.3390/ma15124148.
2
High T and Thermo-Oxidatively Stable Thermosetting Polyimides Derived from a Carborane-Containing Diamine.含硼二胺的高热稳定性和热氧化稳定的热固性聚酰亚胺。
Macromol Rapid Commun. 2018 Nov;39(21):e1800484. doi: 10.1002/marc.201800484. Epub 2018 Sep 10.
3
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.
4
Neodymium oxide nanostructures and their cytotoxic evaluation in human cancer cells.钕氧化物纳米结构及其对人癌细胞的细胞毒性评价。
J Trace Elem Med Biol. 2022 Sep;73:127029. doi: 10.1016/j.jtemb.2022.127029. Epub 2022 Jun 23.
5
Impact of modification of carbon black on morphology and performance of polyimide/carbon black hybrid composites.炭黑改性对聚酰亚胺/炭黑混杂复合材料的形貌和性能的影响。
Phys Chem Chem Phys. 2010 Oct 7;12(37):11342-50. doi: 10.1039/b924178g. Epub 2010 Aug 2.
6
Study on Thermal Oxygen Aging Characteristics and Degradation Kinetics of PMR350 Resin.PMR350树脂的热氧老化特性及降解动力学研究
Polymers (Basel). 2024 Sep 10;16(18):2552. doi: 10.3390/polym16182552.
7
Effects of NdO Nanoparticles on the Structural Characteristics and Dielectric Properties of PVA Polymeric Films.氧化钕纳米颗粒对聚乙烯醇聚合物薄膜结构特性和介电性能的影响。
Polymers (Basel). 2023 Oct 14;15(20):4084. doi: 10.3390/polym15204084.
8
Graphitic carbon nitride supported neodymium oxide as an efficient recyclable nanocatalyst for the one-pot synthesis of diazabenzo[]anthraceneones.石墨相氮化碳负载的氧化钕作为一种高效可回收的纳米催化剂用于一锅法合成二氮杂苯并[]蒽酮。
Dalton Trans. 2022 Jan 17;51(3):1163-1174. doi: 10.1039/d1dt03695e.
9
High Thermally Stable and Melt Processable Polyimide Resins Based on Phenylethynyl-Terminated Oligoimides Containing Siloxane Structure.基于含硅氧烷结构的苯乙炔封端低聚酰亚胺的高热稳定性和可熔融加工聚酰亚胺树脂
Materials (Basel). 2020 Aug 24;13(17):3742. doi: 10.3390/ma13173742.
10
Melt-Processable Semicrystalline Polyimides Based on 1,4-Bis(3,4-dicarboxyphenoxy)benzene Dianhydride (HQDPA): Synthesis, Crystallization, and Melting Behavior.基于1,4-双（3,4-二羧基苯氧基）苯二酐（HQDPA）的可熔融加工半结晶聚酰亚胺：合成、结晶及熔融行为
Polymers (Basel). 2017 Sep 6;9(9):420. doi: 10.3390/polym9090420.

引用本文的文献

1
The Relationship between Structure and Performance of Different Polyimides Based on Molecular Simulations.基于分子模拟的不同聚酰亚胺结构与性能的关系
Polymers (Basel). 2023 Jan 27;15(3):646. doi: 10.3390/polym15030646.
2
Methylethynyl-Terminated Polyimide Nanofibrous Membranes: High-Temperature-Resistant Adhesives with Low-Temperature Processability.甲基乙炔基封端的聚酰亚胺纳米纤维膜：具有低温加工性的耐高温粘合剂。
Polymers (Basel). 2022 Sep 28;14(19):4078. doi: 10.3390/polym14194078.

本文引用的文献

1
High Thermally Stable and Melt Processable Polyimide Resins Based on Phenylethynyl-Terminated Oligoimides Containing Siloxane Structure.基于含硅氧烷结构的苯乙炔封端低聚酰亚胺的高热稳定性和可熔融加工聚酰亚胺树脂
Materials (Basel). 2020 Aug 24;13(17):3742. doi: 10.3390/ma13173742.
2
Temperature sensing and in vivo imaging by molybdenum sensitized visible upconversion luminescence of rare-earth oxides.基于稀土氧化物的钼敏可见上转换发光进行温度传感和体内成像。
Adv Mater. 2012 Apr 17;24(15):1987-93. doi: 10.1002/adma.201200431. Epub 2012 Mar 16.
3
Reinforced thermoplastic polyimide with dispersed functionalized single wall carbon nanotubes.
分散功能化单壁碳纳米管增强热塑性聚酰亚胺。
ACS Appl Mater Interfaces. 2010 Mar;2(3):669-76. doi: 10.1021/am900682s.