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温度对生物基聚酰胺56氢键的影响

Tingting YANG,Yuanbo GAO, Fredrick MUTUA,Hongmei HU,Xiucai LIU,Yi ZHENG,Xueli WANG,Yong HE

Journal of Donghua University(Natural Science Edition)（2020）

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Abstract
利用傅里叶变换红外光谱仪测定了升降温过程中聚酰胺56(PA56)的系列红外光谱,考察了PA56红外光谱中酰胺Ⅰ带、酰胺Ⅱ带及N-H伸缩振动谱带随温度变化的情况,分析了温度对PA56氢键的影响.研究发现,随着温度的升高,氢键键合羰基与氨基的红外吸收谱带的峰强逐渐减小,而游离羰基、氨基的红外吸收谱带的峰强缓慢增大.由此表明PA56的氢键密度随着温度的升高而降低.
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