• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Chitosan and imide-functional Fe3O4 nanoparticles to prepare new xanthene based poly(ether-imide) nanocomposites
【24h】

Chitosan and imide-functional Fe3O4 nanoparticles to prepare new xanthene based poly(ether-imide) nanocomposites

机译：壳聚糖和酰亚胺官能Fe3O4纳米颗粒制备新的X吨基聚（醚酰亚胺）纳米复合材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work a new series of multifunctional nanocomposites were synthesized based on a soluble poly(ether-imide). The poly(ether-imide) was successfully synthesized via direct polycondensation reaction. A methyl rich diamine containing xanthene group as a new monomer was synthesized and used for polymerization. The xanthene based poly(ether-imide) was characterized using size exclusion chromatography (SEC) and nuclear magnetic resonance (NMR). Fe3O4 nanoparticles were imide-functionalized by a dianhydride, chitosan and phenylalanine. The functional Fe3O4 nanoparticles were incorporated into the new synthesized poly(ether-imide). Effects of the functionalized Fe3O4 nanoparticles on the thermal and combustion properties of the corresponding nanocomposites were investigated. Thermogravimetric analysis (TGA) results indicated that the thermal stability and char yields of the nanocomposites were enhanced compared to the neat poly(ether-imide). Microscale combustion calorimetry (MCC) revealed that the synthesized poly(ether-imide) had low flammability. The incorporation of functional Fe3O4 nanoparticles could further improve the combustion properties of poly(ether-imide). The high interaction between poly(ether-imide) and functional Fe3O4, the presence of an imide group and high hydroxyl content of the functional Fe3O4 nanoparticles seem to be responsible for the improvement of the thermal and combustion properties. Furthermore, the presence of methyl, ether and bulky xanthene groups in the polyimide backbone decreased the glass transition temperature (T-g) and increased the solubility in organic solvents. These properties will be useful for processing and new applications of poly(ether-imide).
机译：在这项工作中，基于可溶性聚（醚酰亚胺）合成了新的一系列多功能纳米复合材料。通过直接缩聚反应成功地合成聚（醚酰亚胺）。合成并用于聚合为新单体作为新单体的含富甲基二胺。使用尺寸排阻色谱（SEC）和核磁共振（NMR）表征Xanthene基聚（醚酰亚胺）。通过二酐，壳聚糖和苯丙氨酸酰亚胺官能化Fe 3 O 4纳米颗粒。将功能性Fe 3 O 4纳米颗粒掺入新的合成聚（醚酰亚胺）中。研究了官能化Fe3O4纳米颗粒对相应纳米复合材料的热燃料性能的影响。热重分析（TGA）结果表明，与整齐的聚（醚 - 酰亚胺）相比，纳米复合材料的热稳定性和炭产量增强。微观燃烧量热法（MCC）显示合成的聚（醚酰亚胺）具有低易燃性。掺入功能性Fe 3 O 4纳米颗粒可以进一步改善聚（醚酰亚胺）的燃烧性质。聚（醚 - 酰亚胺）和功能性Fe 3 O 4之间的高相互作用，酰亚胺基团的存在和功能性Fe 3 O 4纳米颗粒的高羟基含量似乎是改善热和燃烧性质的原因。此外，聚酰亚胺主链中的甲基，醚和稀镁基团的存在降低了玻璃化转变温度（T-G）并增加了有机溶剂中的溶解度。这些性质对于多（醚-Imide）的处理和新应用是有用的。

著录项

  • 来源
    《RSC Advances》 |2016年第113期|共8页
  • 作者

    Shabanian Meisam; Moghanian Hassan; Khaleghi Mahroo; Hajibeygi Mohsen; Khonakdar Hossein Ali; Vahabi Henri;

  • 作者单位

    Standard Res Inst SRI Fac Chem &

    Petrochem Engn POB 31745-139 Karaj Iran;

    Islamic Azad Univ Dezful Branch Dept Chem Dezful Iran;

    Standard Res Inst SRI Fac Chem &

    Petrochem Engn POB 31745-139 Karaj Iran;

    Kharazmi Univ Fac Chem Tehran 1571914911 Iran;

    Islamic Azad Univ South Tehran Branch Fac Engn Dept Polymer Engn POB 19585-466 Tehran Iran;

    Univ Lorraine LMOPS EA 4423 F-57070 Metz France;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号