摘要
硫酸盐木素经常压和加压磺化改性后，其红外光谱特征有明显改变。常压改性的木素大分子中的磺酸基团主要定位在苯环上，而加压改性的则主要在与苯环相联接的侧链上，红外光谱说明了它们之间的不同。
The infrared spectrum of sulfate ligins is distinctly changed after they are sulfonated and modified under an ordinary pressure or a compression.It is proved that.under an ordinary pressure,the sulfoacid radicals of modified lignin huge molecules are mainly joined to benzene ring while,under a compression,they are mainly joined to lateral chain linked with benzene ring.The infrared spctrum displays the differentiations between them.
出处
《贵州工业大学学报（自然科学版）》
CAS
1998年第2期92-95,共4页
Journal of Guizhou University of Technology(Natural Science Edition)
基金
贵州省科委基金资助
关键词
木素
红外光谱
磺化
改性
黑液
硫酸盐木素
lignin
infraed spectrum
sulfonation
lateral chain
sulfoacid radical
