pH/Temperature Double Responsive Behaviors and Mechanical Strength of Laponite-Crosslinked Poly(DEA-co-DMAEMA) Nanocomposite Hydrogels

被引：34
|
作者：
Li, Huili
Wu, Ronglan
Zhu, Jinlong
Guo, Pingping
Ren, Wenchen
Xu, Shimei [1 ]
Wang, Jide
机构：
[1] Xinjiang Univ, Minist Educ, Key Lab Oil & Gas Fine Chem, Urumqi 830046, Xinjiang, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2015年 / 53卷 / 12期
关键词：
clay; hydrogel; nanocomposite; stimuli-sensitive polymers; strength; PH;
D O I：
10.1002/polb.23713
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A nanocomposite (NC) hydrogel crosslinked by inorganic Laponite XLG was successfully synthesized via in situ free radical polymerization of monomers N,N-diethylacrylamide and (2-dimethylamino) ethyl methacrylate (DMAEMA). Polymerization was carried out at room temperature due to the accelerating effect of DMAEMA. The as-prepared hydrogels displayed controlled transformation in optical transmittance and volume in response to small diversification of environmental factors, such as temperature and pH. The compressive strength of swollen D(6:1)G(6) hydrogels was as high as 2219 kPa while compressive strain was 95%. Cyclic compression measurement exhibited good elastic properties of NC hydrogels. This work provides a facile method for fabricating stimuli-responsive hydrogels with superior mechanical property. (c) 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015, 53, 876-884
引用
收藏
页码：876 / 884
页数：9
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