Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH

	Tuning the stop bands of inverse opal hydrogels with double network structure by controlling the solvent and pH
	Wang JY ; Han YC
刊名	journal of colloid and interface science
	2011
卷号	353 期号:2 页码:498-505
关键词	HIGH MECHANICAL STRENGTH POLYMER GELS ENTANGLEMENT CRYSTALS
ISSN号	0021-9797
通讯作者	han yc
中文摘要	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.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000284391600020
公开日期	2012-06-11
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44888]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang JY,Han YC. 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 JY,&Han YC.(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 JY,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.