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化工学报  2014 

ATRP法均相制备纤维素/甲基丙烯酸丁酯接枝聚合物

DOI: 10.3969/j.issn.0438-1157.2014.03.048, PP. 1111-1117

Keywords: 纤维素,甲基丙烯酸丁酯,均相ATRP,接枝聚合,疏水性能

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Abstract:

在纤维素LiCl/DMAc均相溶液中,通过氯乙酰氯(ClC2OCl)与纤维素的均相酰化反应制得纤维素氯乙酸酯(Cellulose-ClAc)后,将其溶解在DMAc中,在FeCl2/4-二甲氨基吡啶(DMAP)的催化作用下,引发甲基丙烯酸丁酯(BMA)的均相ATRP聚合反应,制备了纤维素/BMA接枝共聚物(Cellulose-g-PBMA),考察了反应时间、反应温度、反应物配比等对酰化及接枝聚合反应的影响,并通过测试Cellulose-g-PBMA薄膜的接触角,对最终产物的疏水性能进行了研究;采用FTIR、NMR、SEM、TEM、AFM等分析手段对Cellulose-ClAc及Cellulose-g-PBMA的结构进行了表征;利用GPC分析了接枝聚合反应的活性特征。

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