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Preparation of Organo-Inorganic Hybrid Gel Based on Branched Polyethyleneimine Crosslinked with Polyethylene Glycol Diglycidyl Ether and Calcium Phosphate Oligomers

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Abstract

To prepare a uniformly network structured stimulus-responsive copolymer, organic polyethylene imine (PEI), polyethylene glycol glycidyl ether (PEGO) and inorganic calcium phosphate oligomers (CPO) as precursors, were used to prepare the PEI-PEGO-CPO hydrogels. The structure and properties of the products were characterized using infrared, 1H NMR and swelling behavior tests. The influence of CPO on temperature and pH sensitivity of the hydrogels was systematically investigated. The hydrogels were switched at temperatures between 20 and 60°C, pH values between 8 and 13. The results showed that the addition of CPO can effectively improve the temperature and pH responsive properties of the hydrogels. In addition, the hydrogels showed excellent reversibility for swelling–deswelling characteristics.

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Funding

Thanks for the financial support of National Nature Science Foundation of China (project no. 51834005), Hainan province Science and Technology Special Fund (ZDYF2022SHFZ107), Study on Application of intelligent nano system oil displacement method in the deep sea low permeability reservoirs, Local efficient reform and development funds for personnel training projects supported by the central government, Study on nanosystem displacement method of tight reservoir in Daqing Oilfield, Applied Technology Research and Development Program Project in Heilongjiang Province (GA20A201), Open Project Fund of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University, Support Program for Research Talents in Chemical Engineering and Technology of Northeast Petroleum University.

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Authors and Affiliations

  1. Provincial Key Laboratory of Polyolefin New Materials, College of Chemistry and Chemical Engineering, Northeast Petroleum University, 163318, Daqing, China

    Ling Wang, Jun Wang, Wei Ding, Man Lv & Yu Pei

  2. Key Laboratory of Enhanced Oil and Gas Recovery of Ministry of Education of China, Northeast Petroleum University, 163318, Daqing, China

    Kao-ping Song & Erlong Yang

Authors
  1. Ling Wang
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  2. Jun Wang
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  3. Kao-ping Song
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  4. Wei Ding
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  5. Man Lv
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  6. Yu Pei
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  7. Erlong Yang
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Corresponding authors

Correspondence to Ling Wang or Erlong Yang.

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Ling Wang, Wang, J., Song, Kp. et al. Preparation of Organo-Inorganic Hybrid Gel Based on Branched Polyethyleneimine Crosslinked with Polyethylene Glycol Diglycidyl Ether and Calcium Phosphate Oligomers. Polym. Sci. Ser. B 64, 707–714 (2022). https://doi.org/10.1134/S1560090422700452

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  • DOI: https://doi.org/10.1134/S1560090422700452

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