纤维素均相接枝甲基丙烯酸丁酯制备吸油树脂的研究.pdf

油化工
1236
PETROCHEMICAL TECHNOLOGY
2011年第40卷第11期
纤维素均相接枝甲基丙烯酸丁酯制备
吸油树脂的研究
开比努尔?艾尔肯,哈丽丹?买买提,吐尔洪?买买提
(新疆大学化学化工学院,新疆乌鲁木齐830046)
[摘要』以离子液体1ー丁基-3一甲基咪唑氯盐([ Bmim Cl)为溶剂溶解纤维素(棉浆粕),在纤维素/Bmim]C均相溶液中,以
(NH4)2S2O为引发剂、甲基丙烯酸丁酯(BMA)为单体、N,Nー亚甲基双丙烯酰胺(MBA)为交联剂,采用自由基聚合法制备了纤
维素/BMA接枝共聚物;釆用FTIR,SEM,XRD,TG等手段对产物的结构和性能进行了表征;考察了聚合温度、时间以及
(NH4)2S2O8、BMA、MBA的用量对接枝效果的影响。表征结果显示,纤维素/BMA接枝共聚物形态呈非晶态的粒状,结晶度明
显降低、热稳定性相对提高。实验结果表明,纤维素/BMA接枝共聚物的最佳合成条件为:m(纤维素):m((NH4)2S
m(BMA):m(MBA)=1.0:0.1:4.0:0.1,65℃,2h。在此条件下,接枝率可达94.5%,制备的纤维素/BMA接枝共聚物对水
中二氯甲烷的吸收率达到了24.6g/g
「关键词]1-丁基-3-甲基咪唑氯盐;离子液体;棉浆粕;纤维素;甲基丙烯酸丁酯;均相接枝聚合;接枝共聚物
文章编号11000-8144(2011)1-1236-06
「中图分类号」TQ325
[文献标识码]A
Preparation of Oil-absorptive Resin via Homogeneous Graft Copolymerization of
Cellulose and Butyl Methacrylate
Kalbinur Arken, Halidan Mamat, Turghun Muhammd
(Institute of Chemistry and Chemical Industry, Xinjian University, Urumgi Xinjian 830046, China
Abstract Cellulose/but l methacrylate(BMA graft copolymer was synthesized through radical
polymerization with(NH)2S2 Os as initiator, BMA as monomer and N, N-methylene bisacrylamide
(MBA )as cross linker in homogenous cellulose(cotton pulp)/1-butyl-3-methylimidazolium chloride
( Bmimci solution. The structure of the graft copolymer was characterized by means of FTIR
SEM and XRD, and its thermal property was analyzed by means of TG. The effects of the graft
copolymerization conditions, namely temperature, reaction period, and dosages of(NH ) S, O
BMA and MBA on the grafting ratio were investigated. The results showed that the morphology of the
cellulose/BMA graft copolymer was granular rather than fibrous, its crystallinity decreased obviously
and the thermal stability was improved compared to cellulose. Under the optimum copolymerization
conditions: m(cellulose): m((NH,)2S2O2): m (BMA) m(MBA)=1.0 0. 1: 4.0: 0.1, 65
C, 2 h, the grafting ratio could be up to 94.5 and the recovery capability of the cellulose/BMA
graft copolymer for methylene dichloride in water could reach 24.6 g/
Keywords 1-butyl-3-met hylimidazolim chloride; ionic liquid; cotton pulp; cellulose; buty
methacrylate; homogeneous graft copolymerization; graft copolymer
纤维素具有来源广泛、可再生、易于改性等特油性能得到明显改善;同时,由于纤维素的生物可
点。哈丽丹·买买提等将亲油基团引入到纤维素
分子链中,经交联合成了具有三维网状结构的纤维「收稿目期]201-06-14:[修改稿目期」201-07-15
素/甲基丙烯酸丁酯(BMA)接枝共聚物到,并对
作者简介]开比努尔?艾尔肯(1986-),女(维吾尔族),新疆维吾
尔族自治区伊宁市人,硕士生。联系人:哈丽丹?买买提,电话
其结构及吸油性能进行了研究“。由于纤维素细p-85305Halidan2000@yahoo.com.cn
小的内部结构,使得纤维素/BMA接枝共聚物的吸[基金项目]国家自然科学基金资助项目(21064006