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再生纤维素晶型及其相变行为的红外光谱研究

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  • Key Words:再生纤维素;;离子液体;;NaOH/Urea低温溶解体系

  • Abstract:运用博里叶变换红外(FTIR)技术对离子液体及NaOH/Urea两种绿色溶解体系中分别再生纤维素的聚集态结构进行了解析。研究表明离子液体(ILs)再生纤维素为无定形态,而NaOH/Urea低温溶解体系中再生纤维素为纤维素Ⅱ晶型。通过变温红外我们考察了两种再生纤维素相态结构中氢键相互作用对温度的依赖性,首次用红外光谱技术确定了非晶纤维素玻璃化转变温度。

  • Volume:Vol.34

  • Translation or Not:no

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