麦草碱木素和松木硫酸盐木素磺化反应的比较研究  

A Comparative Study on the Reactivities of Straw and Wood Alkali Lignins in Sulfonation Reactions

作　　者：何伟[1] 邰瓞生[1] 林耀瑞 

机构地区：[1]南京林业大学林化系 [2]美国大昭和公司

出　　处：《中国造纸》1991年第6期10-16,共7页China Pulp & Paper

基　　金：国家自然科学基金;中国科学院广州化学所纤维素化学开放实验室的资助

摘　　要：本文采用化学法和光谱法对麦草碱木素和松木硫酸盐木素的化学结构进行了研究,并且比较了两种木素在磺甲基化反应和高温磺化反应中的反应特性。结果表明两种木素在磺甲基化反应中反应速度和可达到的最大磺化度有显著的差别,而在高温磺化反应中差别不大。两种木素在不同的磺化反应中的差异是由本身的化学结构的不同引起的。本文还研究了磺化木素产品的物理化学性质。值得注意的是,在相同的磺化度下麦草磺化木素具有比松木更低的表面张力,并且能制得水溶性很好的木素产品,具有广阔的前景。The chemical nature of technical straw and pine alkali lignins were studied by chemical and spectroscopic analyses. The chemical reactivities of the lignins in suifomethylalion and in high temperature sulfonation were determined and compared. Significant differences in the reactivities and attainable degree of sulfonation were observed in the sulfomethylation while no significant differences were found in the high temperature sulfonation. The differences were explained on the basis of the structure variation of the two lignins. Some properties of the sulfonated lignin products were investigated. The straw lignin products have excellent surface active properties comparable to those from pine lignin.

关 键 词：制浆 废水 碱木素 处理 磺化反应 

分 类 号：X793.03[环境科学与工程—环境工程]