氯乙酰化制备强碱离子交换纤维的工艺研究
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摘要
以PP-St-DVB接枝纤维为起始原料,氯乙酰氯为酰基化试剂、三氯化铝为催化剂,采用傅-克酰基化反应的方法,避免了强碱纤维制备过程中使用致癌性的氯甲醚,优化了溶胀时间、反应温度、反应时间、氯乙酰氯用量、催化剂用量对酰基化后纤维增重率的影响,接枝率大于等于135%的PP-St-DVB纤维最终季铵化反应后可以得到3.0 mmol/g以上的新型强碱离子交换纤维.
Fuctional chloracetylated fiber carriers was prepared via the Friedel-Crafts acetylation of PP-St-DVB fiber by using chloroacetyl chloride as the acylation reagent and taking aluminum trichloride as the catalyst,and to avoided to use carcinogenic compound of chloromethyl ether. The effects of the swelling time,reaction temperature,reaction time,the amount of chloroacetyl chloride and catalyst on weight gain rate after the fiber chloroacetylation were optimized. And finally a new srong base anion exchange fiber was synthesized when the obtained ion exchange fiber exhibited the exchange capacity as high as 3.0 mmol/g and the graft yield of PP-St-DVB fiber was greater than or equal to 135%.
Fuctional chloracetylated fiber carriers was prepared via the Friedel-Crafts acetylation of PP-St-DVB fiber by using chloroacetyl chloride as the acylation reagent and taking aluminum trichloride as the catalyst,and to avoided to use carcinogenic compound of chloromethyl ether. The effects of the swelling time,reaction temperature,reaction time,the amount of chloroacetyl chloride and catalyst on weight gain rate after the fiber chloroacetylation were optimized. And finally a new srong base anion exchange fiber was synthesized when the obtained ion exchange fiber exhibited the exchange capacity as high as 3.0 mmol/g and the graft yield of PP-St-DVB fiber was greater than or equal to 135%.
引文
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[2]NAWAZ T,JASSAL M,SENGUPTA S,et al.Functional group penetration thickness and intraparticle diffusivity of electrospun poly(acrylonitrile)ion-exchange fibers[J].Colloid Polym Sci,2017,295(10):2069-2075.
[3]LEE CG,ALVAREZ PJJ,NAM A,et al.Arsenic(V)removal using an amine-doped acrylic ion exchange fiber:kinetic,equilibrium,and regeneration studies[J].J Hazard Mater,2017,325:223-229.
[4]张本尚,冯俊波,杨明成,等.PP-St-DVB基强酸离子交换纤维的氯磺酸磺化工艺研究[J].合成工业纤维,2016,39(3):7-10.
[5]李仙蕊,黄佳佳,原思国.PPS基强酸离子交换纤维的制备及对Cr(Ⅲ)的吸附性能[J].分子材料科学与工程,2012,28(9):145-149.
[6]冯长根,杨海燕,曾庆轩.强酸型阳离子交换纤维的直接法制备[J].化工学报,2004,55(11):1884-1888.
[7]黄佳佳.聚苯硫醚基强碱离子交换纤维的制备与性能研究[D].郑州:郑州大学,2011.
[8]肖华明.新型强碱型离子交换纤维的制备、表征及其对硝酸盐氮的吸附研究[D].天津:南开大学,2010.
[9]姚化杰,周冬菊,代立波,等.PPS基N-甲基咪唑离子交换纤维对As(V)的吸附性能[J].功能材料,2014,45(9):104-107.
[10]宋艳阳,原思国,周从章.弱酸离子交换纤维对含镍废水的吸附性能研究[J].功能材料,2012,43(15):2014-2017.
[11]陈涛,曾庆轩,冯长根.弱酸离子交换纤维的结构表征与性能研究[J].功能材料,2007,38(10):1605-1609.
[12]李鑫,赵俊英,李伟,等.弱酸阳离子交换纤维对铜离子吸附性能的研究[J].河南科学,2008,26(1):28-30.
[13]原思国,吕邢鑫,安威威,等.弱碱型离子交换纤维对铬酸雾的吸附性能研究[J].郑州大学学报(工学版),2013,34(2):7-10.
[14]代立波,周从章,原思国.弱碱性离子交换纤维对六价铬吸附性能的研究[J].高校化学工程学报,2012,26(4):674-678.
[15]郑娟.氨基硫脲螯合离子交换纤维的制备及对Au(Ⅲ)吸附性能的研究[D].北京:北京理工大学,2016.
[16]孙耀冉,李明愉,曾庆轩,等.氨基膦酸型螯合离子交换剂的合成方法研究进展[J].离子交换与吸附,2016,3:280-288.
[17]王雪飞.聚丙烯腈基两性离子交换纤维的制备及应用性能研究[D].北京:北京服装学院,2010.
[18]王菲.强酸/弱碱型PP基两性离子交换纤维的研究[D].广州:中山大学,1999.
[19]符若文,王菲,杜秀英,等.强酸弱碱型两性离子交换纤维的制备I.苯乙烯和4-乙烯基吡啶的接枝共聚[J].合成纤维工业,2000,23(4):4-8.
[20]IGUEROA W G,RASZKOWSKI R,WEISS W.Lung cancer in chloromethyl methyl ether workers[J].New Engl J Med,1973,288(21):1096-1097.
[21]魏荣卿,王强,刘晓宁,等.氯乙酰化聚苯乙烯型固相载体的制备[J].离子交换与吸附,2005(4):289-296.