摘要
采用凝胶色谱、傅里叶变换红外光谱仪、核磁共振氢谱、核磁共振碳谱、差示扫描量热仪、X射线衍射、熔体流动速率仪等分析了自制的聚ε-己内酯的结构与性能。结果表明：所合成产物为聚ε-己内酯，相对分子质量为（5．6～12．5）×10^4，相对分子质量分布指数为1．61～2．23；聚ε-己内酯的熔点为56～64℃，相对分子质量越大，熔点越高；聚ε-己内酯结晶度可达59％；聚ε-己内酯的熔体流动指数为每10min0．5～6．5g，相对分子质量越大，熔体流动速率越小。
The structure and properties of a self-made poly （ ε-caprolactone） were analyzed with gel permeation chromatograph, Fourier transform infrared spectrometer, hydrogen nuclear magnetic resonance spectrometer, carbon nuclear magnetic resonance spectrometer, differential scanning calorimeter, X-ray diffractometer and melt flow indexer. The results showed that the synthesis product was poly（ ε -caprolactone） with the relative molecular mass of （5.6 - 12.5 ） × 10^4 and relative molecular mass distribution index of 1.61 -2.23; poly （ ε-caprolactone） possessed the crystallinity of 59% and the melting point increasing from 50 ℃ to 64℃ while increasing relative molecular mass; and the melt flow index of poly（ ε -caprolactone） was decreased in the range of 0.5 -6.5 g/10 min with the increase of relative molecular mass.
出处
《合成纤维工业》
CAS
北大核心
2013年第6期65-67,共3页
China Synthetic Fiber Industry
关键词
聚Ε-己内酯
熔体流动指数
相对分子质量
熔点
结晶度
poly（ ε -caprolactone）
melt flow index
relative molecular mass
melting point
crystallinity
