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Abstract
Poly(acrylamide-co-octylphenol polyoxyethylene (10) acrylate) hydrophobic association hydrogels, which is abbreviated to poly(AM-co-OP10/AC) HA-gels, were prepared through micellar copolymerization of acrylamide (AM) and a small amount of octylphenol polyoxyethylene (10) acrylate (OP10/AC) in the presence or absence of sodium dodecyl sulfate (SDS). For poly(AM-co-OP10/AC) HA-gels, formation mechanism was discussed in detail, which can reasonably explain the reason that tensile mechanical properties of the hydrogels (containing SDS) are much higher than those of the hydrogels (not containing SDS). In addition, according to the tensile experimental results of poly(AM-co-OP10/AC) HA-gels, the effect of composition content in the initial solutions on tensile mechanical properties was investigated in detail. The results clearly indicate tensile strength, elastic modulus and elongations for poly(AM-co-OP10/AC) HA-gels strongly depended on composition content in the initial solutions.
Acknowledgements
The author thanks Professor Fengqi Liu (College of Chemistry, Jilin University) for helpful discussions.