ICCAS OpenIR
Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH
Wang, Jianying; Han, Yanchun
2011-01-15
Source PublicationJOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN0021-9797
Volume353Issue:2Pages:498-505
AbstractPolyacrylic 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.
KeywordDouble Network Hydrogels High Mechanical Strength Colloidal Templating Hydrogel Photonic Crystals Inverse Opal
DOI10.1016/j.jcis.2010.10.002
Indexed BySCI
Language英语
WOS IDWOS:000284391600020
PublisherACADEMIC PRESS INC ELSEVIER SCIENCE
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71428
Collection中国科学院化学研究所
Corresponding AuthorHan, Yanchun
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
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.
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