Preparation and characterization of PMAA/MWCNTs nanohybrid hydrogels with improved mechanical properties.
作者： Yan-Ling Luo , Feng Xu , Qiang-Suo Feng , Ya-Shao Chen , Chao Ma
DOI: 10.1002/JBM.B.31511
关键词:
摘要: A novel nanohybrid hydrogel was in situ prepared by means of a free radical crosslinking polymerization route methacrylic acid the presence multi-walled carbon nanotubes (MWCNTs). The structural and morphological characterizations revealed that poly(methacrylic acid) networks (PMAA) closely covered MWCNTs, MWCNT-well-dispersed formed. addition MWCNTs strikingly improved pH response mechanical properties, depending on component ratios particle sizes as well crosslinker concentrations. swelling rate obviously faster than pure PMAA hydrogel. hydrophilic nature polyelectrolytes, capillarity effect, cation-pi or charge-transfer interaction hydrogen bonds, subtle balance among these interactions were adopted to interpret above behavior. Load transfer played important part compression improvements. MTT assays evaluate cytocompatibility developed biomaterials. This smart is expected be used potential candidate for specific biological applications.
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