疏水缔合聚合物AHAPAM的制备与性能评价
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摘要
为获得耐温性能良好的疏水缔合聚合物,以丙烯酰胺(AM)、对苯乙烯磺酸钠(SSS)、N,N-二甲基十八烷基烯丙基氯化铵(DMAAC-18)为原料制备了一种两性疏水缔合聚合物AHAPAM。通过测定AHAPAM溶液的黏度优化了AHAPAM的制备条件,研究了AHAPAM的耐温抗盐性能。结果表明,在DMAAC-18和SSS摩尔分数分别为1.5%和0.6%、单体质量分数25%、引发剂((NH4)2S2O8与Na HSO3摩尔比1.2∶1)加量0.2%、反应温度45℃、p H值为9、反应时间6 h的最佳合成条件下制得的AHAPAM的临界缔合浓度值为0.19%。AHAPAM浓度高于临界缔合浓度时,聚合物疏水链间以分子间缔合为主并形成空间网状结构。AHAPAM的抗温性能良好,0.50%AHAPAM溶液在120℃、170 s~(-1)下剪切1.4 h的黏度约为90 m Pa·s。AHAPAM的抗盐性能较好,在氯化钠和氯化钙加量为18%和15%时,AHAPAM溶液的黏度约为330 m Pa·s。
In order to obtain hydrophobically associating polymer with good temperature resistance,an hydrophobically associating amphiphilic polymer AHAPAM was synthesized by using acrylamide(AM),sodium p-styrenesulfonate(SSS),N,N-dimethyl octadecyl allyl ammonium chloride(DMAAC-18). The preparation condition of AHAPAM was optimized by measuring the viscosity of AHAPAM solution,and the temperature resistance and salt tolerance of AHAPAM were studied. The results showed that the critical associative concentration of AHAPAM was 0.19% under optimum synthesis condition with 1.5% mole fraction of DMAAC-18,0.6% mole fraction of SSS,25% monomer mass fraction,0.2% initiator(a combination of(NH4)2 S2 O8 and Na HSO3 in mole ratio 1.2∶1),45℃ reaction temperature,9 p H value,and 6 h reaction time. When the concentration of AHAPAM was higher than the critical associative concentration,the intermolecular association between hydrophobic chains of AHAPAM was predominant and a spatial network structure was formed. The viscosity of 0.5% AHAPAM solution was about 90 m Pa·s at 120°C and 170 s~(-1) shearing for 1.4 h,showing good temperature resistance. The viscosity of AHAPAM solution was about 330 m Pa·s when the dosage of sodium chloride and calcium chloride was 18% and 15% respectively,indicating good salt tolerance.
In order to obtain hydrophobically associating polymer with good temperature resistance,an hydrophobically associating amphiphilic polymer AHAPAM was synthesized by using acrylamide(AM),sodium p-styrenesulfonate(SSS),N,N-dimethyl octadecyl allyl ammonium chloride(DMAAC-18). The preparation condition of AHAPAM was optimized by measuring the viscosity of AHAPAM solution,and the temperature resistance and salt tolerance of AHAPAM were studied. The results showed that the critical associative concentration of AHAPAM was 0.19% under optimum synthesis condition with 1.5% mole fraction of DMAAC-18,0.6% mole fraction of SSS,25% monomer mass fraction,0.2% initiator(a combination of(NH4)2 S2 O8 and Na HSO3 in mole ratio 1.2∶1),45℃ reaction temperature,9 p H value,and 6 h reaction time. When the concentration of AHAPAM was higher than the critical associative concentration,the intermolecular association between hydrophobic chains of AHAPAM was predominant and a spatial network structure was formed. The viscosity of 0.5% AHAPAM solution was about 90 m Pa·s at 120°C and 170 s~(-1) shearing for 1.4 h,showing good temperature resistance. The viscosity of AHAPAM solution was about 330 m Pa·s when the dosage of sodium chloride and calcium chloride was 18% and 15% respectively,indicating good salt tolerance.
引文
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[13]蒋玲玲,罗平亚,陈馥,等.疏水缔合聚合物在高密度钻井液中的应用研究[J].钻井液与完井液,2005,22(4):5-7.
[14]吴伟,刘平平,武继辉,等.反相乳液聚合制备疏水缔合聚合物AAMS-2及其压裂液性能评价[J].应用化工,2016,45(2):203-206.
[15]孙蒙.疏水缔合物稠化剂的合成及评价[D].大庆:东北石油大学,2014:30-32.
[16]彭飞,方波,卢拥军,等.四元两性疏水缔合聚合物的聚合流变动力学与聚合物溶液流变性究[J].油田化学,2016,33(3):462-467.
[17]张怀平,许凯,曹现福,等.疏水缔合水溶性聚合物聚合方法的研究进展[J].石油化工,2006,35(7):695-700.
[18]滕大勇,牛心蕙,徐俊英.疏水缔合水溶性聚合物的合成与应用研究进展[J].化工技术与开发,2014(5):34-39.
[19]王强,郑茂盛,沈人杰,等.聚合法对疏水缔合聚丙烯酰胺黏度的影响[J].应用化工,2007,36(8):807-809.
[2]陈凯,吕永利,王丹,等.耐高温压裂液增稠剂的制备及耐温构效关系[J].石油与天然气化工,2011,40(4):385-389.
[3]LU Hongsheng,LIU Ya,WANG Baogang,et al.Self-assembling transition behavior of a hydrophobic associative polymer based on counterion and p H effects[J].Colloids Surf A:Physicochem Eng Aspects,2016,490:1-8.
[4]唐善法,罗平亚.疏水缔合水溶性聚合物的研究进展[J].现代化工,2002,22(3):10-13.
[5]宋春雷,杨清波,安会勇,等.疏水缔合水溶性聚合物的研究进展[J].应用化工,2010,39(5):735-739
[6]王斌.新型疏水缔合水溶性聚合物的合成及溶液性能研究[J].应用化工,2011,40(4):667-669
[7]蒋锡夔,张劲涛.有机分子的簇集和自卷[M].上海:上海科学技术出版社,1996:50-58.
[8]赵国玺.表面活性剂物理化学[M].北京:北京大学出版社,1991:112-131.
[9]ZHU Z,JIAN O,PAILLET S,et al.Hydrophobically modified associating polyacrylamide(HAPAM)synthesized by micellar copolymerization at high monomer concentration[J].Eur Polym J,2007,43(3):24-834.
[10]JIANG Feng,PU Wanfen,LI Yibo,et al.A double-tailed acrylamide hydrophobically associating polymer:synthesis,characterization,and solution properties[J].J Appl Polym Sci,2015,132(38):138-144.
[11]陈洪,韩利娟,徐鹏,等.疏水改性聚丙烯酰胺的增粘机理研究[J].物理化学学报.2003,19(11):1020-1024.
[12]王健,郑焰,冯玉军,等.新型缔合聚合物驱油剂性能评价[J].油田化学,1999,16(2):149-152.
[13]蒋玲玲,罗平亚,陈馥,等.疏水缔合聚合物在高密度钻井液中的应用研究[J].钻井液与完井液,2005,22(4):5-7.
[14]吴伟,刘平平,武继辉,等.反相乳液聚合制备疏水缔合聚合物AAMS-2及其压裂液性能评价[J].应用化工,2016,45(2):203-206.
[15]孙蒙.疏水缔合物稠化剂的合成及评价[D].大庆:东北石油大学,2014:30-32.
[16]彭飞,方波,卢拥军,等.四元两性疏水缔合聚合物的聚合流变动力学与聚合物溶液流变性究[J].油田化学,2016,33(3):462-467.
[17]张怀平,许凯,曹现福,等.疏水缔合水溶性聚合物聚合方法的研究进展[J].石油化工,2006,35(7):695-700.
[18]滕大勇,牛心蕙,徐俊英.疏水缔合水溶性聚合物的合成与应用研究进展[J].化工技术与开发,2014(5):34-39.
[19]王强,郑茂盛,沈人杰,等.聚合法对疏水缔合聚丙烯酰胺黏度的影响[J].应用化工,2007,36(8):807-809.