Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH
文献类型：期刊论文
| 作者 | Wang, Jianying; Han, Yanchun |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2011-01-15 |
| 卷号 | 353期号:2页码:498-505 |
| 关键词 | Double Network Hydrogels High Mechanical Strength Colloidal Templating Hydrogel Photonic Crystals Inverse Opal |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2010.10.002 |
| 英文摘要 | Polyacrylic acid (PAA) and polyacrylamide (PAAm) double network (DN) hydrogels with high mechanical strength (about 1.5 MPa) are obtained when two kinds of monomer solutions of 4 M AA with 5 mol% crosslinker and 4 M AAm with 0.1 mol% crosslinker are used for the optimal preparation. Their high mechanical strength can be maintained even at high water content (above 50%) and at external stimuli (solvent and pH). This optimized DN hydrogel is used to develop the PAA/PAAm inverse opal hydrogel with DN structure by twice infiltration-polymerization and colloidal templating. Its photonic stop band can be tuned by controlling the solvent and pH. It first shows a small red-shift (about 20 nm), and then a large blue-shift (about 180 nm) with the increased ethanol content. For pH response, the DN inverse opal hydrogel has a large stop-band shift of about 140 nm when the pH increases from 1.2 to 5.6. Moreover, the DN inverse opal hydrogel also shows rapid recovery ability without hysteresis phenomenon in strong acidic environment, good reproducibility and durability. The interaction between the independently crosslinked PAA network and PAAm network plays a significant role in determining the response performance. (C) 2010 Elsevier Inc. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000284391600020 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71427]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, Yanchun |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jianying,Han, Yanchun. Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2011,353(2):498-505. |
| APA | Wang, Jianying,&Han, Yanchun.(2011).Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH.JOURNAL OF COLLOID AND INTERFACE SCIENCE,353(2),498-505. |
| MLA | Wang, Jianying,et al."Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH".JOURNAL OF COLLOID AND INTERFACE SCIENCE 353.2(2011):498-505. |
入库方式： OAI收割
来源：化学研究所
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