摘要
以丙烯酰胺(AM)、丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和1-烯丙氧基-4-壬基苯(NPAB)为单体,采用过硫酸铵-亚硫酸氢钠为引发体系,制备了一种新型水溶性共聚物,并对该共聚物进行了红外和扫描电镜表征。适宜的共聚条件为:m(AM)∶m(AA)∶m(AMPS)∶m(NPAB)=6∶4∶0.3∶0.02、pH=7、w(引发剂)=0.29%、单体总浓度20%、温度40℃。研究表明:2g/L的共聚物溶液表观黏度高达716.3mPa·s;在120℃时,共聚物溶液黏度保留率达到35.71%;MgCl2和CaCl2含量为2g/L时,共聚物溶液黏度保留率高达125.3和126.3mPa·s。该共聚物溶液可提高模拟原油的采收率。
A novel water-soluble copolymer of poly（acrylamide-co-acrylic acid-co-sodium 2-（acrylamido）-2-methylpropane-1-sulfonate-co-1-（allyloxy）-4-nonylbenzene） （AM/AA/AMPS/PNAB） was prepared by using （NH4）2S2Os-NaHSO3 system with acrylamide（AM）,acrylic acid（AA）,2-（acrylamido）-2-methylpropane-1-sulfonate（AMPS） and 1-（allyloxy）-4-nonylbenzene （PNAB） as raw materials.The optimal conditions were investigated as follows：m（AM） ∶ m（AA） ∶ m（AMPS） ∶ m（PNAB）=6 ∶ 4 ∶ 0.3 ∶ 0.02,pH was 7,initiator was 0.4％,concentration of monomers was 20％ and temperature was 40 ℃.The structure of synthesized copolymer was confirmed by FTIR and SEM.It was found that the apparent viscosity of 2 g/L copolymer solution was 716.3 mPa · s and the retention value of the apparent viscosity could achieve 35.71％ at 120 ℃.The retention value of the apparent viscosity in 2 g/L copolymer solution could be up to 125.3 at 2 g/L concentration of CaCl2 and 126.3 at 2 g/L concentration of MgCl2 respectively.Simulated crude recovery could be improved by the copolymer solution.
出处
《精细石油化工》
CAS
CSCD
北大核心
2014年第1期19-24,共6页
Speciality Petrochemicals
基金
四川省科技支撑计划项目(2012FZ0130)
国家自然科学基金项目资助(51274172)
关键词
1-烯丙氧基-4-壬基苯
2-丙烯酰胺基-2-甲基丙磺酸
耐温
抗盐
驱油剂
1-（allyloxy）-4-nonylbenzene
sodium 2-（acrylamido）-2-methylpropane-1-sulfonate
temperature-tolerance
salt-resistant
enhanced oil recovery chemical
作者简介
苟绍华（1974-）,博士（后）,教授,主要从事水溶性高分子合成及有机合成研究.E-mail：shgou@126.com.
