• 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

具有两个席夫碱连接单元的新型六取代环三磷腈化合物的液晶和阻燃性能。

Liquid-Crystal and Fire-Retardant Properties of New Hexasubstituted Cyclotriphosphazene Compounds with Two Schiff Base Linking Units.

机构信息

Faculty of Science and Natural Resources, Universiti Malaysia Sabah (UMS), Kota Kinabalu 88400, Malaysia.

School of Chemical Sciences, Universiti Sains Malaysia (USM), Penang 11800, Malaysia.

出版信息

Molecules. 2020 May 1;25(9):2122. doi: 10.3390/molecules25092122.

DOI:10.3390/molecules25092122
PMID:32370000
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7248761/
Abstract

A series of new hexasubstituted cyclotriphosphazene compounds (-) consisting of two Schiff base linking units and different terminal substituents was successfully synthesized and characterized. The structures of these compounds were confirmed using Fourier Transform Infra-Red (FTIR), Nuclear Magnetic Resonance (NMR), and CHN elemental analysis. Polarized optical microscopy (POM) was used to determine their liquid-crystal behavior, which was then further confirmed using differential scanning calorimetry (DSC). Compounds - with heptyl, nonyl, decyl, dodecyl, tetradecyl, hydroxy, 4-carboxyphenyl, chloro, and nitro terminal ends, respectively, showed the liquid-crystal properties, whereas compound with the amino group was found to be non-mesogenic. The attachment of an electron-donating group in eventually give a non-mesogenic product. The study of the fire-retardant properties of these compounds was done using the limiting oxygen index (LOI). In this study, polyester resin (PE) was used as a matrix for moulding, and the LOI value of pure PE was 22.53%. The LOI value increased to 24.71% when PE was incorporated with 1 wt.% of hexachlorocyclotriphosphazene (HCCP), thus indicating that HCCP has a good fire-retardant properties. The result showed that all the compounds have good agreement in their LOI values. Compound with a nitro terminal group gave the highest LOI value of 28.37%.

摘要

一系列由两个席夫碱连接单元和不同末端取代基组成的新型六取代环三磷腈化合物（-）成功合成并进行了表征。这些化合物的结构通过傅里叶变换红外（FTIR）、核磁共振（NMR）和 CHN 元素分析得到了确认。偏光显微镜（POM）用于确定它们的液晶行为，然后通过差示扫描量热法（DSC）进一步确认。化合物 - 分别具有庚基、壬基、癸基、十二烷基、十四烷基、羟基、4-羧基苯基、氯和硝基末端，表现出液晶性质，而具有氨基的化合物则被发现是非介晶的。在 中引入供电子基团最终得到非介晶产物。通过极限氧指数（LOI）研究了这些化合物的阻燃性能。在这项研究中，聚酯树脂（PE）被用作模塑的基质，纯 PE 的 LOI 值为 22.53%。当 PE 与 1wt.%的六氯环三磷腈（HCCP）混合时，LOI 值增加到 24.71%，这表明 HCCP 具有良好的阻燃性能。结果表明，所有化合物的 LOI 值都非常接近。具有硝基末端基团的化合物 给出了最高的 LOI 值 28.37%。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/64faa79154ae/molecules-25-02122-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/fc319cef7366/molecules-25-02122-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/0ad930b1ad93/molecules-25-02122-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/e8c7da15edb5/molecules-25-02122-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/7585444166e4/molecules-25-02122-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/3397ac86ef47/molecules-25-02122-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/9ff345659dda/molecules-25-02122-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/69854f4cc83d/molecules-25-02122-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/8062ec2b4426/molecules-25-02122-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/85bf1f8ed604/molecules-25-02122-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/044b6e68dec9/molecules-25-02122-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/02ad0597ea25/molecules-25-02122-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/e30e7d98a3cc/molecules-25-02122-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/45b69e68b98f/molecules-25-02122-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/2d9b3c822900/molecules-25-02122-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/b9ee8c4b577c/molecules-25-02122-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/64faa79154ae/molecules-25-02122-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/fc319cef7366/molecules-25-02122-sch001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/0ad930b1ad93/molecules-25-02122-sch002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/e8c7da15edb5/molecules-25-02122-sch003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/7585444166e4/molecules-25-02122-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/3397ac86ef47/molecules-25-02122-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/9ff345659dda/molecules-25-02122-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/69854f4cc83d/molecules-25-02122-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/8062ec2b4426/molecules-25-02122-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/85bf1f8ed604/molecules-25-02122-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/044b6e68dec9/molecules-25-02122-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/02ad0597ea25/molecules-25-02122-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/e30e7d98a3cc/molecules-25-02122-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/45b69e68b98f/molecules-25-02122-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/2d9b3c822900/molecules-25-02122-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/b9ee8c4b577c/molecules-25-02122-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/bcc1/7248761/64faa79154ae/molecules-25-02122-g013.jpg

相似文献

1
Liquid-Crystal and Fire-Retardant Properties of New Hexasubstituted Cyclotriphosphazene Compounds with Two Schiff Base Linking Units.具有两个席夫碱连接单元的新型六取代环三磷腈化合物的液晶和阻燃性能。
Molecules. 2020 May 1;25(9):2122. doi: 10.3390/molecules25092122.
2
Synthesis of novel liquid crystalline and fire retardant molecules based on six-armed cyclotriphosphazene core containing Schiff base and amide linking units.基于含席夫碱和酰胺连接单元的六臂环三磷腈核的新型液晶和阻燃分子的合成
RSC Adv. 2020 Aug 4;10(48):28918-28934. doi: 10.1039/d0ra03812a. eCollection 2020 Aug 3.
3
Synthesis of New Star-Shaped Liquid Crystalline Cyclotriphosphazene Derivatives with Fire Retardancy Bearing Amide-Azo and Azo-Azo Linking Units.新型含酰胺偶氮和偶氮偶氮键联单元的星型阻燃液晶环三磷腈衍生物的合成。
Int J Mol Sci. 2020 Jun 16;21(12):4267. doi: 10.3390/ijms21124267.
4
Fire-Retardant Property of Hexasubstituted Cyclotriphosphazene Derivatives with Schiff Base Linking Unit Applied as an Additives in Polyurethane Coating for Wood Fabrication.含席夫碱连接单元的六取代环三磷腈衍生物作为添加剂在木材制造用聚氨酯涂料中的阻燃性能
Polymers (Basel). 2022 Sep 8;14(18):3768. doi: 10.3390/polym14183768.
5
Fire Retardancy and Dielectric Strength of Cyclotriphosphazene Compounds with Schiff Base and Ester Linking Units Attached to the Electron-Withdrawing Side Arm.带有连接在吸电子侧链上的席夫碱和酯连接单元的环三磷腈化合物的阻燃性和介电强度
Polymers (Basel). 2022 Oct 17;14(20):4378. doi: 10.3390/polym14204378.
6
Synthesis and Determination of Thermotropic Liquid Crystalline Behavior of Cinnamaldehyde-Based Molecules with Two Schiff Base Linking Units.基于两个席夫碱连接单元的肉桂醛类分子的热致液晶行为的合成与测定。
Molecules. 2020 Aug 20;25(17):3780. doi: 10.3390/molecules25173780.
7
The Synthesis of New Thermal Stable Schiff Base/Ester Liquid Crystals: A Computational, Mesomorphic, and Optical Study.新型热稳定席夫碱/酯液晶的合成：计算、介晶态和光学研究。
Molecules. 2019 Aug 21;24(17):3032. doi: 10.3390/molecules24173032.
8
The Effect of Alkyl Terminal Chain Length of Schiff-Based Cyclotriphosphazene Derivatives towards Epoxy Resins on Flame Retardancy and Mechanical Properties.席夫碱型环三磷腈衍生物的烷基端链长度对环氧树脂的阻燃性和力学性能的影响
Polymers (Basel). 2023 Mar 14;15(6):1431. doi: 10.3390/polym15061431.
9
Three Rings Schiff Base Ester Liquid Crystals: Experimental and Computational Approaches of Mesogenic Core Orientation Effect, Heterocycle Impact.三环席夫碱酯类液晶：介晶核取向效应的实验和计算方法，杂环的影响。
Molecules. 2022 Apr 1;27(7):2304. doi: 10.3390/molecules27072304.
10
Synthesis, Optical, and Geometrical Approaches of New Natural Fatty Acids' Esters/Schiff Base Liquid Crystals.新型天然脂肪酸酯/席夫碱液晶的合成、光学和几何方法。
Molecules. 2019 Nov 25;24(23):4293. doi: 10.3390/molecules24234293.

引用本文的文献

1
Core-Only Calamitic Liquid Crystals: Molecular Design and Optoelectronic Properties.仅含核心的 calamitic 液晶：分子设计与光电性质
Chem Asian J. 2025 Apr 17;20(8):e202401543. doi: 10.1002/asia.202401543. Epub 2025 Feb 12.
2
The Effect of Alkyl Terminal Chain Length of Schiff-Based Cyclotriphosphazene Derivatives towards Epoxy Resins on Flame Retardancy and Mechanical Properties.席夫碱型环三磷腈衍生物的烷基端链长度对环氧树脂的阻燃性和力学性能的影响
Polymers (Basel). 2023 Mar 14;15(6):1431. doi: 10.3390/polym15061431.
3
Fire Retardancy and Dielectric Strength of Cyclotriphosphazene Compounds with Schiff Base and Ester Linking Units Attached to the Electron-Withdrawing Side Arm.

本文引用的文献

1
Recent Advances for Flame Retardancy of Textiles Based on Phosphorus Chemistry.基于磷化学的纺织品阻燃性研究新进展
Polymers (Basel). 2016 Aug 25;8(9):319. doi: 10.3390/polym8090319.
2
Thermal Flow Sensors for Harsh Environments.用于恶劣环境的热流传感器。
Sensors (Basel). 2017 Sep 8;17(9):2061. doi: 10.3390/s17092061.
3
Photo-Responsive Shape-Memory and Shape-Changing Liquid-Crystal Polymer Networks.光响应形状记忆与形状变化液晶聚合物网络
带有连接在吸电子侧链上的席夫碱和酯连接单元的环三磷腈化合物的阻燃性和介电强度
Polymers (Basel). 2022 Oct 17;14(20):4378. doi: 10.3390/polym14204378.
4
Synthesis of novel liquid crystalline and fire retardant molecules based on six-armed cyclotriphosphazene core containing Schiff base and amide linking units.基于含席夫碱和酰胺连接单元的六臂环三磷腈核的新型液晶和阻燃分子的合成
RSC Adv. 2020 Aug 4;10(48):28918-28934. doi: 10.1039/d0ra03812a. eCollection 2020 Aug 3.
5
A Review on Synthesis, Structural, Flame Retardancy and Dielectric Properties of Hexasubstituted Cyclotriphosphazene.六取代环三磷腈的合成、结构、阻燃性能及介电性能综述
Polymers (Basel). 2021 Aug 30;13(17):2916. doi: 10.3390/polym13172916.
6
Construction of Charring-Functional Polyheptanazine towards Improvements in Flame Retardants of Polyurethane.构建碳化功能聚七嗪以改善聚氨酯的阻燃性能。
Molecules. 2021 Jan 11;26(2):340. doi: 10.3390/molecules26020340.
7
Synthesis and Determination of Thermotropic Liquid Crystalline Behavior of Cinnamaldehyde-Based Molecules with Two Schiff Base Linking Units.基于两个席夫碱连接单元的肉桂醛类分子的热致液晶行为的合成与测定。
Molecules. 2020 Aug 20;25(17):3780. doi: 10.3390/molecules25173780.
8
Synthesis of New Star-Shaped Liquid Crystalline Cyclotriphosphazene Derivatives with Fire Retardancy Bearing Amide-Azo and Azo-Azo Linking Units.新型含酰胺偶氮和偶氮偶氮键联单元的星型阻燃液晶环三磷腈衍生物的合成。
Int J Mol Sci. 2020 Jun 16;21(12):4267. doi: 10.3390/ijms21124267.
Materials (Basel). 2013 Jan 2;6(1):116-142. doi: 10.3390/ma6010116.
4
Recent Developments in Organophosphorus Flame Retardants Containing P-C Bond and Their Applications.含P-C键的有机磷阻燃剂的最新进展及其应用
Materials (Basel). 2017 Jul 11;10(7):784. doi: 10.3390/ma10070784.
5
H-Bonding and charging mediated aggregation and emission for fluorescence turn-on detection of hydrazine hydrate.
Chem Commun (Camb). 2015 Jul 7;51(53):10656-9. doi: 10.1039/c5cc02897c.
6
Flame retardant cotton fibers produced using novel synthesized halogen-free phosphoramide nanoparticles.采用新型合成无卤磷酰胺纳米粒子生产的阻燃棉纤维。
Carbohydr Polym. 2015 Mar 15;118:183-98. doi: 10.1016/j.carbpol.2014.11.039. Epub 2014 Nov 24.
7
Columnar mesomorphic organizations in cyclotriphosphazenes.环三磷腈中的柱状介晶组织
J Am Chem Soc. 2005 Jun 29;127(25):8994-9002. doi: 10.1021/ja051042w.