摘要
采用二维红外光谱法分析纤维素。在293~393K范围内,分别测定脱脂棉纤维的一维红外光谱、二阶导数红外光谱和去卷积红外光谱。结果表明：脱脂棉纤维中的α-纤维素在559cm-1有一个的红外特征吸收峰,β-纤维素在893,1 206,1 235cm-1处有红外特征吸收峰;随测定温度的升高,559cm-1处红外吸收强度降低,893,1 206,1 235cm-1处红外吸收强度增加。进一步采用二维红外光谱研究温度对于脱脂棉纤维结构的影响,结果表明：随测定温度的升高,脱脂棉纤维红外特征吸收峰强度增加的顺序为893cm-1〉1 235cm-1〉1 206cm-1〉559cm-1。
Two-dimensional IR spectrum was applied to the analysis of cellulose.One-dimensional IR spectrum,second derivative IR spectrum and deconvolution IR spectrum of absorbent cotton fiber were obtained in the temperature range of 293-393 K.It was found that the band resulting fromα-cellulose appeared near 559cm-1and the bands resulting fromβ-cellulose appeared near 893,1 206,1 235cm-1.With increasing temperature,infrared absorption intensity of 559cm-1 decreased,while those of 893,1 206,1 235cm-1 increased.Effect of temperature on structure of absorbent cotton fiber was further studied using two-dimensional IR spectrum.It was found that the sequence of intensity increases of IR characteristic absorption peaks was 893cm-11 235cm-11 206cm-1559cm-1 with increasing temperature.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2015年第11期1497-1500,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
河北省科技厅科学技术研究与发展计划课题(10215687)
石家庄市科学技术研究与发展计划课题(131500142A)
关键词
二维红外光谱
纤维素
一维红外光谱
二阶导数红外光谱
去卷积红外光谱
Two-dimensional IR spectrum
Cellulose
One-dimensional IR spectrum
Second derivative IR spectrum
Deconvolution IR spectrum
