摘要
对碱法麦草制浆黑液酸法回收的木质素与丙烯酰胺接枝共聚反应进行了试验研究.结果表明,接枝共聚反应的适宜条件为:丙烯酰胺单体用量1.0mol·1-1,过硫酸钾引发剂浓度1.0×10-2mol·1-1,反应温度70℃,固液比1:50(W/W),反应时间4h.木质素与木质素接枝聚合物以及聚丙烯酰胺的红外光谱表明,木质素与丙烯酰胺之间发生了接枝共聚反应.
Study on the effecting factors of the graft reaction of lignin from treating paper-pulping black liquor in acidification with acrylamide was accomplished. The results showed that the feasible conditions were 1.0 mol·1-1 of the acrylamide and 1.0×10 mol·1-1 of the initiating agent and 70℃ of the reaction temperature and 1:50 about the solid-liquor ratio (W/W) and the 4h on the reaction time. The infrared absorption spectrums of the lignin, the lignin copolymer with acrylamide and polyacrylamide confirmed that the graft reaction of the lignin with acrylamide was accomplished.
出处
《环境化学》
CAS
CSCD
北大核心
2005年第4期443-445,共3页
Environmental Chemistry
基金
国家高技术研究发展计划"863"项目(2002AA601022-4).
