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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Liu, Shirong Zhang, Xiaodong Chen, Mingqing Yang, Zhaokun Shi, Dongjian |
| Copyright Year | 2016 |
| Abstract | This paper presents fabrication of polyacrylamide (PAM) and PAM/poly(methacrylic acid) (PMAA) inverse opal photonic crystal hydrogels (IOHs) based on poly(styrene-acrylic acid) (PSA) template by a “Sandwich” method. SEM images showed the obtained IOHs had a three-dimensional ordered structure and extremely uniform pore size without over-layers and defects. The IOHs exhibited brilliant structural color by controlling the PSA particle size, MAA and cross-linker compositions. The color and Bragg diffraction peak of the IOHs responded to external stimuli such as pH, methanol and ethanol. The reflectance was red-shifted in low pH and blue-shifted in high pH and in the presence of methanol and ethanol. The effects of the MAA and cross-linker composition on the response properties of the IOHs were investigated. The PMAA in the IOHs provided –COOH groups that are apt to form hydrogen bonds with water, enhancing the response sensitivity. |
| Starting Page | 85885 |
| Ending Page | 85890 |
| Page Count | 6 |
| File Format | HTM / HTML PDF |
| ISSN | 20462069 |
| Volume Number | 6 |
| Issue Number | 89 |
| Journal | RSC Advances |
| DOI | 10.1039/c6ra18738b |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Structural coloration Ethanol Neutron diffraction Hydrogen Polyacrylamide Poly(methacrylic acid) MAA Carboxylic acid Photonic crystal PMAA PSA Methanol |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Chemical Engineering |
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