【摘要】 通过二维相关红外光谱,研究了再生蚕丝蛋白膜的构象及其转变与温度之间的关系.实验结果表明,将样品从130℃升温到220℃、或在180℃的恒温过程中,丝素蛋白分子链的构象会发生变化,且不同构象对温度升高过程或180℃恒温过程响应的顺序是无规线团变化先于β折叠、α螺旋的形成.更多还原

【Abstract】 With the advantage of two dimensional (2D) correlation FT IR spectroscopy, the conformation transition of regenerated silk fibroin film was studied under thermal treatment. The results showed that the conformation changed when the film was heated from 130 to 220 ℃ as well as maintained at 180 ℃ for different time courses. It was also found that the conformation response order was random coil prior to β sheet and α helix.更多还原