高等学校化学学报

高等学校化学学报 ›› 2006, Vol. 27 ›› Issue (4): 749.

• 研究论文 • 上一篇    下一篇

膨化柞蚕丝内部形态和结构的研究

孙登峰,  邵正中,  陈新   

  1. 复旦大学高分子科学系, 教育部聚合物分子工程重点实验室, 上海 200433
  • 收稿日期:2005-05-19 出版日期:2006-04-10 发布日期:2006-04-10
  • 通讯作者: 邵正中(1964年出生), 男, 博士, 教授， 主要从事结构性生物大分子研究. E-mail: zzshao@fudan.edu.cn

Interior Morphology and  Structure of Expended Tussah Silk Fiber

SUN Deng-Feng,  SHAO Zheng-Zhong*,  CHEN Xin   

  1. The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education,  Department of  Macromolecular Science,  Fudan University,  Shanghai  200433, China
  • Received:2005-05-19 Online:2006-04-10 Published:2006-04-10
  • Contact: SHAO Zheng-Zhong, E-mail: zzshao@fudan.edu.cn

PDF (PC)

被引次数

9

摘要：

利用扫描电镜(SEM)， 结合拉曼(Raman)光谱、 衰减全反射傅里叶变换红外(ATR-FTIR)光谱和X射线衍射(XRD)等方法研究了膨化型柞蚕丝的内部形态和结构， 表征了其热性能和力学性能. 结果表明， 虽然经过了相应的膨化处理， 柞蚕丝素蛋白分子链仍表现出具有高度取向的反平行β-折叠构象， 而其单丝是由许多带状微纤沿纤维轴平行组装而成, 且具有较高力学性能的纤维.

关键词: 蚕丝; 形态; 取向; 构象; 力学性能

Abstract:

The interior  morphology and structure of the  expended tussah silk fiber were studied carefully by scanning electron microscopy(SEM) and with the help of Raman spectroscopy,   attenuated total reflection-Fourier transform infrared(ATR-FTIR) spectroscopy and   X-ray diffraction(XRD). Meanwhile,  the thermal and mechanical properties of such kind of silk were also  investigated. The results indicate that the molecular chain of silk protein in the expanded tussah silk fiber was highly oriented,  in which the conformation was dominated by β-sheet. The well-performed silk fiber was made of many band-shaped micro-fibers aligned along its long axis.

Key words: null

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