• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >AB(2) Y-shaped miktoarm star conductive polyaniline-modified poly(ethylene glycol) and its electrospun nanofiber blend with poly(epsilon-caprolactone)
【24h】

AB(2) Y-shaped miktoarm star conductive polyaniline-modified poly(ethylene glycol) and its electrospun nanofiber blend with poly(epsilon-caprolactone)

机译：AB（2）Y型微臂星形导电聚苯胺改性聚乙二醇及其静电纺纳米纤维与聚ε-己内酯的共混物

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

This paper describes the synthesis and characterization of novel type AB(2) Y-shaped miktoarm star conductive polyaniline-modified poly(ethylene glycol) [PEG-b-(PANI)(2)], and preparation of its electrospun nanofiber blend with poly(epsilon-caprolactone) [PEG-b-(PANI)(2)/PCL]. The chemical structures of all samples as representatives were characterized by means of Fourier transform infrared (FTIR), and H-1 nuclear magnetic resonance (NMR) spectroscopies. The molecular weights of PANI segment(s), and miktoarm star conductive PEG-b-(PANI)(2) were found to be 3720, and 5847, respectively, from 1H NMR spectroscopy. Moreover, electrical conductivities, electroactivities, thermal behaviors, morphologies, and compositions of the synthesized samples were studied. The conductivity and electroactivity measurements showed that PEG-b-(PANI)(2) and PEG-b-(PANI)(2)/PCL electrospun blend nanofibers have lower electrical conductivity and electroactivity than those of the pure PANI. However, the lower electrical conductivity and electroactivity levels in these materials can be improved at the price of solubility, processability, and biocompatibility. Field emission scanning electron microscopy (FE-SEM) images showed that the PEG-b-(PANI)(2)/PCL electrospun nanofibers have a single phase, indicating good interactions between the blend components. The average diameters of these fibers were in the size range of 70 +/- 10 nm, and there was no formation of beaded structures in comparison with electrospun fibers of pure PCL. As results, we predicted the synthesized PEG-b-(PANI)(2) and PEG-b-(PANI)(2)/PCL can be used in the biomedical fields such as in conductive scaffolds to promote neurite outgrowth, and nerve regeneration.
机译：本文描述了新型AB（2）Y型微臂星形导电聚苯胺改性的聚乙二醇[PEG-b-（PANI）（2）]的合成和表征，以及其与聚丙烯酰胺的电纺纳米纤维共混物的制备（ε-己内酯）[PEG-b-（PANI）（2）/ PCL]。通过傅立叶变换红外光谱（FTIR）和H-1核磁共振（NMR）光谱对所有样品的化学结构进行了表征。通过1 H NMR光谱发现，PANI段和miktoarm星型导电PEG-b-（PANI）（2）的分子量分别为3720和5847。此外，还研究了合成样品的电导率，电活性，热行为，形态和组成。电导率和电活性测量表明，PEG-b-（PANI）（2）和PEG-b-（PANI）（2）/ PCL电纺混纺纳米纤维比纯PANI具有更低的电导率和电活性。然而，这些材料中较低的电导率和电活性水平可以以溶解度，可加工性和生物相容性为代价而得到改善。场发射扫描电子显微镜（FE-SEM）图像显示PEG-b-（PANI）（2）/ PCL电纺纳米纤维具有单相，表明共混物组分之间具有良好的相互作用。这些纤维的平均直径在70 +/- 10nm的尺寸范围内，与纯PCL的电纺丝纤维相比，没有形成串珠结构。结果，我们预测合成的PEG-b-（PANI）（2）和PEG-b-（PANI）（2）/ PCL可用于生物医学领域，例如在导电支架中促进神经突向外生长和神经再生。 。

著录项

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