新型阻垢剂丙烯酸钠低聚物的合成研究
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摘要
本实验采用控制p H值的自由基低聚法聚合了丙烯酸钠低聚物:用丙烯酸为单体、过硫酸钾为引发剂、月桂硫醇为链转移剂、碳酸钠为p H调节剂和聚合控制剂。用红外光谱法对合成产物进行表征,得到了聚丙烯酸钠;用GPC对聚合产物的数均相对分子质量进行了表征,得到了聚合度为7和8的丙烯酸钠低聚物;对丙烯酸钠低聚物进行热重分析,说明其耐热性达到400℃。按国家标准(GB/T 16632—2008)对阻垢性能进行了测试,当丙烯酸钠低聚物的浓度为1.00 g/L时,阻垢率达到97%以上。
In this experiment,the sodium polyacrylate oligomer is synthesized with the method of free radical oligomered by controlling p H: acrylic acid as a monomers,potassium persulfate as the initiator,n- dodecyl mercaptan as chain transfer agent,sodium carbonate as p H control agent and oligomer telogen. The synthetic products were characterized by the IR,proved that it was sodium polyacrylate; and the number- average molecular weight of the sodium polyacrylate was measured by the GPC,proved the degree of polymerization is 7 and 8; and the thermogravimeter proved that its thermostability is400℃. According to national standards( GB / T16632- 2008) testing scale inhibitive performance: when the amount of the sodium polyacrylate oligomer is 1. 00 g·L- 1,the inhibition rate reached over 97%.
In this experiment,the sodium polyacrylate oligomer is synthesized with the method of free radical oligomered by controlling p H: acrylic acid as a monomers,potassium persulfate as the initiator,n- dodecyl mercaptan as chain transfer agent,sodium carbonate as p H control agent and oligomer telogen. The synthetic products were characterized by the IR,proved that it was sodium polyacrylate; and the number- average molecular weight of the sodium polyacrylate was measured by the GPC,proved the degree of polymerization is 7 and 8; and the thermogravimeter proved that its thermostability is400℃. According to national standards( GB / T16632- 2008) testing scale inhibitive performance: when the amount of the sodium polyacrylate oligomer is 1. 00 g·L- 1,the inhibition rate reached over 97%.
引文
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[10]丁建果.低分子量聚丙烯酸钠合成及其应用研究[D].广东工业大学,2014.
[11]高毕亚,郑柏存,傅乐峰.聚丙烯酸钠超分散剂的合成及其分散性能研究[J].日用化学工业,2008,38(1):20-23.
[12]Eriksson R,Merta J,Jarl Rosenholm B.The calcite/water interface:II.Effect of added lattice ions on the charge properties and adsorption of sodium polyacrylate[J].Journal of Colloid and Interface Science,2008,326(2):396-402.
[13]葛红光.低分子量聚丙烯酸钠的合成及应用[J].辽宁化工,2000,29(1):29-30.
[14]鲁风芹,王晓辉.丙烯酸生产废水聚合生成聚丙烯酸阻垢剂[J].青岛科技大学学报:自然科学版,2014,35(2):158-161.
[15]Eriksson R,Merta J,Jarl Rosenholm B.The calcite/water interface:Effect of added lattice ions on the charge properties and adsorption of sodium polyacrylate[J].Journal of Colloid and Interface Science,2008,326(2):396-402.
[16]孟江燕,王云英,熊成晶,等.一种超低分子量聚丙烯酸钠的制备方法[P].201410328673.X,2014-07-14.
[17]孟江燕,刘逸,杨明杰.超低分子量聚丙烯酸钠的制备及其阻垢性能研究[J].南昌航空大学学报:自然科学版,2014(4):39-42.
[2]胡图文,童向阳.聚丙烯酸钠高吸水性树脂的制备与吸水率的影响因素[J].胶体与聚合物,2009,27(2):30-32.
[3]Doo-Won Lim,kyong-Geun Song,Kee-Jong Yoon,Sohk-Won Ko.Synthesis of acrylic acid-based superabsorbent interpenetrated with sodium PVA sulfate using inverse-emulsion polymerization[J].European Polymer Joural,2002,38(2):579.
[4]占平珍.聚丙烯酸钠絮凝剂的开发与应用[J].企业家天地,2012,12:96.
[5]陈文汨,梁高杰.拜耳法赤泥沉降用聚丙烯酸钠的反相乳液聚合与应用[J].应用化工,2013,42(2):307-312.
[6]Fujita H,Mitsuhashi K,Homma T.Viscosities of sodium polyacrylate in aqueous sodium chloride[J].Journal of Colloid Science,1954,9(5):466-478.
[7]徐丹,董学亮,刘明,等.聚丙烯酸钠增稠剂的特性及用途[J].河南科学,2005,23(6):810-813.
[8]卞进发.反相乳液聚合法制备高性能聚丙烯酸钠增稠剂[J].计算机与应用化学,2011,28(11):1469-1472.
[9]Schweins R,Hollmann J,Huber K.Dilute solution behaviour of sodium polyacrylate chains in aqueous NaClsolutions[J].Polymer,2003,44(23):7131-7141.
[10]丁建果.低分子量聚丙烯酸钠合成及其应用研究[D].广东工业大学,2014.
[11]高毕亚,郑柏存,傅乐峰.聚丙烯酸钠超分散剂的合成及其分散性能研究[J].日用化学工业,2008,38(1):20-23.
[12]Eriksson R,Merta J,Jarl Rosenholm B.The calcite/water interface:II.Effect of added lattice ions on the charge properties and adsorption of sodium polyacrylate[J].Journal of Colloid and Interface Science,2008,326(2):396-402.
[13]葛红光.低分子量聚丙烯酸钠的合成及应用[J].辽宁化工,2000,29(1):29-30.
[14]鲁风芹,王晓辉.丙烯酸生产废水聚合生成聚丙烯酸阻垢剂[J].青岛科技大学学报:自然科学版,2014,35(2):158-161.
[15]Eriksson R,Merta J,Jarl Rosenholm B.The calcite/water interface:Effect of added lattice ions on the charge properties and adsorption of sodium polyacrylate[J].Journal of Colloid and Interface Science,2008,326(2):396-402.
[16]孟江燕,王云英,熊成晶,等.一种超低分子量聚丙烯酸钠的制备方法[P].201410328673.X,2014-07-14.
[17]孟江燕,刘逸,杨明杰.超低分子量聚丙烯酸钠的制备及其阻垢性能研究[J].南昌航空大学学报:自然科学版,2014(4):39-42.