Premium
Synthesis and characterization of a novel β‐cyclodextrin modified cationic polyacrylamide and its application for enhancing oil recovery
Author(s) -
Li Xiaoke,
Zou Changjun,
Cui Chanchan
Publication year - 2015
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201500022
Subject(s) - polyacrylamide , cationic polymerization , acrylamide , aqueous solution , copolymer , polymerization , cyclodextrin , polymer chemistry , fourier transform infrared spectroscopy , chemistry , ammonium chloride , zeta potential , acryloyl chloride , materials science , nuclear chemistry , chemical engineering , polymer , organic chemistry , acrylate , nanoparticle , engineering , nanotechnology
The methyl acrylamide propyl dimethyl butyl ammonium chloride (DMAPMA‐C) and allyl‐β‐cyclodextrin (A‐β‐CD) were synthesized separately and then jointly copolymerized with acrylamide (AM) to form a novel cationic acrylamide polymer P(AM/A‐β‐CD/DMAPMA‐C) through aqueous redox free‐radical polymerization. The structure of the copolymer was characterized using Fourier transform infrared spectroscopy (FT‐IR), nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM). Subsequently, a series of experiments were carried out to investigate its comprehensive performances, including temperature resistance, salt tolerance, aqueous stability, and sandpack flooding experiments. In addition, the rheological properties of P(AM/A‐β‐CD/DMAPMA‐C) were also tested and calculated. The results showed that P(AM/A‐β‐CD/DMAPMA‐C) possessed higher salt tolerance, temperature resistance, and aqueous stability than polyacrylamide (PAM). The rheological properties also indicated its applicability for enhanced oil recovery. The copolymer could significantly increase the oil recovery of 15.47%, which indicated its potential application for enhancing oil recovery in the oilfield.