在水溶液中,以丙烯酸(AA)和蛭石(VMT)为原料,N,N'-亚甲基双丙烯酰胺(MBA)为交联剂,用辉光放电电解等离子体(GDEP)技术引发一步制备蛭石/聚丙烯酸高吸水性复合材料.采用FTIR、XRD对蛭石/聚丙烯酸的结构进行了表征,探讨了GDEP引发聚合和溶胀动力学行为的机制,研究了pH值和盐浓度对蛭石/聚丙烯酸平衡溶胀率的影响.结果表明,蛭石/聚丙烯酸高吸水性复合材料在蒸馏水中2h达溶胀平衡,溶胀过程遵循拟二级动力学模型;该复合材料具有pH敏感性、盐敏感性和可逆溶胀-消溶胀开关行为,其在单价阳离子溶液中的平衡溶胀率比二价阳离子溶液中的更高.
参考文献
| [1] | 杨永辉,武继承,吴普特,等.保水剂用量对小麦不同生育期根系生理特性的影响[J].应用生态学报,2011,22(1):73-78.Yang Yonghui,Wu Jicheng,Wu Pute,et al.Effects of different application rates of water-retaining agent on root physiological characteristics of winter wheat at its different growth stages[J].Chinese Journal of Applied Ecology,2011,22(1):73-78. |
| [2] | Zheng Y A,Gao T P,Wang A Q.Preparation,swelling,and slow-release characteristics of superabsorbent composite containing sodium humate[J].Industrial & Engineering Chemistry Research,2008,47(6):1766-1773. |
| [3] | Molina M A,Rivarola C R,Barbero C A.Study on partition and release of molecules in superabsorbent thermosensitive nanocomposites[J].Polymer,2012,53(2):445-453. |
| [4] | Casimiro M H,Botelho M L,Leal J P.Study on chemical,UV and gamma radiation-induced grafting of 2-hydroxyethyl methacrylate onto chitosan[J].Radiation Physics and Chemistry,2005,72(6):731-735. |
| [5] | Hickling A,Ingram M D.Glow-discharge electrolysis[J].Journal of Electroanalytical Chemistry,1964,8(1):65-81. |
| [6] | Sengupta S K,Singh R,Srivastava A K.A study on nonfaradaic yields of anodic contact glow discharge electrolysis using cerous ion as the OH · scavenger:An estimate of the primary yield of OH · radicals[J].Indian Journal of Chemistry.Sect.A:Inorganic,Physical,Theoretical and Analytical,1998,37(6):558-560. |
| [7] | Malik M A,Ahmed M,Rehman E,et al.Synthesis of superabsorbent copolymers by pulsed corona discharges in water[J].Plasma Polymer,2003,8(4):271-279. |
| [8] | Lu Q F,Yu J,Gao J Z,et al.Glow-discharge electrolysis plasma induced synthesis of polyvinylpyrrolidone/acrylic acid hydrogel and its adsorption properties for heavy-metal ions[J].Plasma Processes and Polymers,2011,8(9):803-814. |
| [9] | Lu Q F,Yu J,Gao J Z,et al.A promising absorbent of acrylic acid/poly(ethylene glycol) hydrogel prepared by glow-discharge electrolysis plasma[J].Central European Journal of Chemistry,2012,10(4):1349-1359. |
| [10] | 王爱勤,张俊平.有机-无机复合高吸水性树脂[M].北京:科学出版社,2006.Wang Aiqin,Zhang Junping.Organic-inorganic Superabsorbent Composite[M].Beijing:Science Press,2006. |
| [11] | 韩炜,刘 炜,吴驰飞.纳米有机蛭石/天然橡胶复合材料的制备及性能[J].复合材料学报,2006,23(2):77-81.Han Wei,Liu Wei,Wu Chifei.Preparation and properties of natural rubber/organic vermiculite nanocomposites[J].Acta Materiae Compositae Sinica,2006,23(2):77-81. |
| [12] | Liu Y,Zheng Y A,Wang A Q.Enhanced adsorption of Methylene Blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites[J].Journal of Environmental Sciences,2010,22(4):486-493. |
| [13] | 唐群委,林建明,吴季怀,等.膨胀蛭石/聚(丙烯酸钾-丙烯酰胺)高吸水性复合材料的制备、性能及表征[J].功能材料,2006,37(9):1510-1513.Tang Qunwei,Lin Jianming,Wu Jihuai,et al.Preparation,properties and characterization of expanded vermiculite/poly (potassium acrylate-acrylamide) superabsorbent composite[J].Journal of Functional Materials,2006,37(9):1510-1513. |
| [14] | 高锦章,马得莉,俞洁,等.辉光放电等离子体引发制备聚丙烯酸/蛭石复合高吸水树脂及其性能研究[J].西北师范大学学报:自然科学版,2011,47(4):56-60.Gao Jinzhang,Ma Deli,Yu Jie,et al.Synthesis and characterization of acrylic acid/vermiculite superabsorbent resin via glow-discharge electrolysis plasma[J].Journal of Northwest Normal University:Natural Science,2011,47(4):56-60. |
| [15] | Sengupta S K,Sandhir U,Misra N.A study on acrylamide polymerization by anodic contact glow-discharge electrolysis:A novel tool[J].Journal of Polymer Science Part A-Polymer Chemistry,2001,39(10):1584-1588. |
| [16] | Kokufuta E,Shibasaki T,Sodeyama T,et al.Simultaneously occurring hydroxylation,hydration,and hydrogenation of the C=C bond of aliphatic carboxylic acids in aqueous solution by glow discharge electrolysis[J].Chemistry Letters,1985(10):1569-1572. |
| [17] | 刘平生,李利,周宁琳,等.蒙脱土/聚丙烯酸高吸水性树脂的合成[J].复合材料学报,2006,23(3):44-48.Liu Pingsheng,Li Li,Zhou Ninglin,et al.Synthesis of montmorillonite/poly(acryl ic acid) super absorbent resin[J].Acta Materiae Compositae Sinica,2006,23(3):44-48. |
| [18] | 柳明珠,程镕时,钱人元.聚乙烯醇水凝胶溶胀特性研究[J].高分子学报,1996(2):234-239.Liu Mingzhu,Cheng Rongshi,Qian Renyuan.Investigation of swelling property of poly(vinyl alcohol) hydrogel[J].Acta Polymerica Sinica,1996(2):234-239. |
| [19] | Schott H.Swelling kinetics of polymers[J].Journal of Macromolecular Science B:Physics,1992,31(1):1-9. |
| [20] | 施小宁,王文波,王爱勤.瓜尔胶-g-聚(丙烯酸钠-co-苯乙烯)/海泡石复合高吸水性树脂的制备及溶胀行为[J].化工学报,2011,62(3):864-869.Shi Xiaoning,Wang Wenbo,Wang Aiqin.Synthesis and swelling properties of guar gum-gpoly(sodium acrylate-co-styrene)/sepiolite superabsorbent composite[J].Journal of Chemical Industry and Engineering,2011,62(3):864-869. |
| [21] | Pourjavadi A,Barzegar S,Zeidabadi F.Synthesis and properties of biodegradable hydrogels of κ-carrageenan grafted acrylic acid-co-2-acrylamido-2-methylpropane sulfonic acid as candidates for drug delivery systems[J].Reactive & Functional Polymers,2007,67:644-654. |
| [22] | Spagnol C,Rodrigues F H A,Neto A G V C,et al.Nanocomposites based on poly(acrylamide-co-acrylate) and cellulose nanowhiskers[J].European Polymer Journal,2012,48(3):454-463. |
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