Journal of Materials Science

, Volume 54, Issue 13, pp 10024–10040 | Cite as

Hydrophobic modification of cationic microblocked polyacrylamide and its enhanced flocculation performance for oily wastewater treatment

  • Yuhao Zhou
  • Huaili ZhengEmail author
  • Yaoyao Huang
  • Xinyu Zheng
  • Zenan Liu
  • Yanyan An
  • Chun Zhao
  • Yongzhi Liu


In this study, a novel amphiphilic flocculant TP-ADL was synthesized using acrylamide, methacryloxyethyltrimethyl ammonium chloride and lauryl acrylate as monomers through UV-light-initiating template copolymerization technology. Copolymerization conditions were optimized towards higher intrinsic viscosity and conversion rate. The Fourier transform infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy (NMR) analysis confirms the functional groups composition in TP-ADL, and the thermogravimetric (TGA) analysis indicates its good thermal stability. Furthermore, the detailed 1H NMR and TGA analysis confirms the microblock structure in polymer chain. The amphiphilic rheological characteristics of copolymer were detected according to apparent viscosity. TP-ADL displayed superior flocculation efficiency towards oily wastewater in terms of oil and turbidity removal rate, and zeta potential. The median floc size (d50) and fractal dimension (Df) results indicate a large and compact floc structure. The synergistic effect between cationic microblock structure and inter-molecular hydrophobic association is the main reason for the better treatment efficiency.



We gratefully acknowledge financial support from National Natural Science Foundation of China (Project No. 21477010), Key Research and Development Project of Chongqing Special Industry Technological Innovation and Application Demonstration (Project No. cstc2018jszx-cyzdX0035), Chongqing Special Postdoctoral Science Foundation (Project No. Xm2017035).

Compliance with ethical standards

Conflict of interest

The authors declare no competing financial interest.

Supplementary material

10853_2019_3601_MOESM1_ESM.docx (20 kb)
Supplementary material 1 (DOCX 20 kb)


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Coal Mine Disaster Dynamics and ControlChongqing UniversityChongqingChina
  2. 2.Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of EducationChongqing UniversityChongqingChina

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