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Adsorption of poly(L-lysine) on surface-attached poly(methacrylic acid) monolayers

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Abstract

Adsorption of poly(L-lysine) on surface-attached poly(methacrylic acid) monolayers formed through in situ free radical polymerization was investigated. A strong “template effect” was observed for the adsorption of poly(L-lysine) on poly(methacrylic acid) layers, which were perpendicularly grown from the surface of substrates. The adsorbed amount of poly(amino acid) increases linearly with the increase in initial layer thickness of poly(methacrylic acid) monolayers. In addition, the adsorbed poly(amino acid) is relatively stable in medium concentration of salt solution but can be completely released from the brush in high salt concentration.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China

    Yanling Dong  (董艳玲) & Haining Zhang  (张海宁)

  2. School of Printing and Packaging, Henan University of Animal Husbandary and Economy, Zhengzhou, 450046, China

    Fangfang Zhang  (张方方)

Authors
  1. Yanling Dong  (董艳玲)
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  2. Fangfang Zhang  (张方方)
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  3. Haining Zhang  (张海宁)
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Corresponding authors

Correspondence to Fangfang Zhang  (张方方) or Haining Zhang  (张海宁).

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Funded by the National Natural Science Foundation of China (21576216)

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Dong, Y., Zhang, F. & Zhang, H. Adsorption of poly(L-lysine) on surface-attached poly(methacrylic acid) monolayers. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 31, 1298–1301 (2016). https://doi.org/10.1007/s11595-016-1530-5

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  • DOI: https://doi.org/10.1007/s11595-016-1530-5

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