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| 碱木质素接枝丙烯酸钠共聚物的分离初探 | |
| 引用本文： | 王佰亮,张卫英,李晓,程贤甦.碱木质素接枝丙烯酸钠共聚物的分离初探[J].林产化学与工业,2009,29(3):107-110. |
| 作者姓名： | 王佰亮 张卫英 李晓 程贤甦 |
| 作者单位： | 1. 福州大学化学化工学院,福建,福州,350002 2. 福州大学化学化工学院,福建,福州,350002;福州大学材料科学与工程学院,福建,福州,350002 3. 福州大学材料科学与工程学院,福建,福州,350002 |
| 摘 要： | 以K2S2O8-Na2S2O3复合体系引发碱木质素和丙烯酸钠接枝共聚,研究了碱木质素接枝丙烯酸钠共聚物的分离方法.结果表明,采用酸析离心工艺能有效地分离接枝共聚物,而且在中和度105%～115%、转速6000 r/min下,离心9 min即可达到均聚物与共聚物的良好分离,红外光谱证实分离产物为接枝共聚物. |
| 关 键 词： | 碱木质素 接枝共聚 分离方法 丙烯酸钠 |
Separation of Alkali-lignin Grafted Sodium Acrylate Copolymers |
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| WANG Bai-liang,ZHANG Wei-yin,LI Xiao,CHENG Xian-su.Separation of Alkali-lignin Grafted Sodium Acrylate Copolymers[J].Chemistry & Industry of Forest Products,2009,29(3):107-110. | |
| Authors: | WANG Bai-liang ZHANG Wei-yin LI Xiao CHENG Xian-su |
| Institution: | 1.College of Chemistry and Chemical Engineering;Fuzhou University;Fuzhou 350002;China;2.College of Material Science and Technology;China |
| Abstract: | Grafted copolymerization of alkali-lignin with sodium acrylate was carried out using K2 S2 O8 and Na2 S2 O3 as initiator,and method of separating alkali-lignin grafted copolymers was investigated. The results showed that acidification followed by centrifugation could well separate out the grafted copolymers from the crude products. At neutralization degree of 105 % -115 % and centrifugation rate of 6 000 r/min,the separation could be done in 9 min. Using the FT-IR spectra,the separated product was verified ... |
| Keywords: | alkali-lignin graft copolymerization separation method sodium acrylate |
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