Preparation and solution properties of a novel cationic hydrophobically modified polyacrylamide for enhanced oil recovery

Peng Zhang* (Corresponding Author), Wenzhe Wang, Yingfang Zhou, Gang Ruan, Haiyang Yu, Wenjuan Ji

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)
6 Downloads (Pure)


A novel cationic water-soluble monomer allyldimethylisooctylammonium bromide (ADIAB) containing a short-chain alkane was synthesized successfully. This monomer was copolymerized with acrylamide and sodium acrylate to produce hydrophobically modified polyacrylamide (HMPAM) using solution polymerization without surfactants. The structures of monomer ADIAB and HMPAM were characterized with infrared spectroscopy and nuclear magnetic resonance spectroscopy. Influence of preparation condition on viscosities of products was studied. The aqueous solution viscosity of the terpolymer was also investigated as functions of concentration, temperature and salinity. The results showed that when the temperature exceeds the 60°C and NaCl concentration exceeds about 2000mg/L, the temperature and salt tolerance characters of terpolymer were demonstrated. The enhanced oil recovery tests were initially carried out using homogeneous sandpack models.
Original languageEnglish
Pages (from-to)764-769
Number of pages6
JournalJournal of Macromolecular Science, Part A: Pure and Applied Chemistry
Issue number11-12
Publication statusPublished - 2018

Bibliographical note

Financial support from National Natural Science Foundation of China (51504050,
51774062), Scientific and Technological Research Program of Chongqing Municipal
Education Commission (KJ1601305) and Research Foundation of Chongqing
University of Science & Technology (CK2016B07, CK2016Z20).


  • hydrophobically modified polyacrylamide
  • temperature tolerance
  • salt resistance
  • enhanced oil recovery
  • hydrophobic association


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