木质素模型化合物胺基多元醇交联反应及其动力学研究  

Crosslinking Reaction and Kinetics of Aminated Polyols from Lignin Model Compounds

作　　者：聂明才[1,2,3,4] 孔振武[1,2,3,4] 霍淑平[1,2,3,4] 吴国民[1,2,3,4] 陈健 

机构地区：[1]中国林业科学研究院林产化学工业研究所 [2]生物质化学利用国家工程实验室 [3]国家林业局林产化学工程重点开放性实验室 [4]江苏省生物质能源与材料重点实验室,江苏南京210042

出　　处：《林产化学与工业》2012年第4期21-27,共7页Chemistry and Industry of Forest Products

基　　金：国家林业局948技术引进项目(2008-4-77)

摘　　要：将愈创木酚胺基多元醇、香草醛胺基多元醇分别以丁酮为溶剂配成固含量30%的溶液,与MDI-50按—NCO与—OH物质的量比1∶1混合均匀,采用介电分析(DEA)法研究两种胺基多元醇与MDI-50室温交联反应特性,同时采用红外光谱(FT-IR)法进一步研究其交联反应动力学特征,得到两种胺基多元醇的交联反应动力学方程。研究结果表明,木质素模型化合物愈创木酚胺基多元醇、香草醛胺基多元醇与异氰酸酯MDI-50的交联反应活性相近,均遵循n级反应动力学规律。The guaiacol and vanillin lignin model compounds with aminated polyols were dissolved by butanone to prepare the so- lution with solid content 30 %, and then mixed with MDI-50 as the molar ratio of --NCO to --OH is 1 ： 1. The characterization of crosslinking reaction of these two aminated polyols with MDI-50 at ambient temperature was investigated by DEA, and the crosslinking reaction kinetics was investigated by FT-IR in this study. The kinetic equations of these two crosslinking reaction sys- tems were obtained. The results indicated that the crosslinking reactions between these two aminated polyols and MDI-50 were similar in reactivity, and the reactions followed the n-order reaction kinetic model.

关 键 词：胺基多元醇 动力学特征 交联反应 模型化合物 木质素 反应动力学方程 物质的量比 愈创木酚 

分 类 号：TQ351[化学工程]