| Ionic effects on the mechanical and swelling properties of a poly(acrylic acid/acrylamide) double crosslinking hydrogel | |
Zhang, Huijuan1; Cheng, Yuran1; Hou, Xinjuan2; Yang, Biao1; Guo, Fang3
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| 2018-06-07 | |
| Corresponding Author | Zhang, Huijuan(zhanghuijuan@btbu.edu.cn) ; Hou, Xinjuan(xjhou@home.ipe.ac.cn) |
| Source Publication | NEW JOURNAL OF CHEMISTRY
 |
| ISSN | 1144-0546 |
| Volume | 42Issue:11Pages:9151-9158 |
| Abstract | Understanding the structure-property relationships of tough double crosslinking hydrogels, especially at the molecular level, is of great importance for the rational design and wider applications of this kind of soft material. Herein, a mechanically strong poly(acrylic acid/acrylamide) (P(AA/AM)) hydrogel was fabricated, based on a double crosslinking architecture which comprised a chemically crosslinked network and a metal ion crosslinked physical network. The ionic effect, including metal ions and counter anions, on the mechanical and swelling properties of the hydrogels was investigated in detail. Importantly, it was discovered that the P(AA/AM) hydrogel immersed in 0.06 M ferric nitrate (FeCl3) exhibited a tensile strength of 1377 kPa while in ferric chloride (Fe(NO3)(3)), the tensile strength was 1471 kPa. These values were vastly superior to those obtained for the other metal salts tested. Notably, the distinct mechanical strengths of the hydrogels crosslinked by the ferric salts (FeCl3, Fe(NO3)(3), Fe-2(SO4)(3)) were investigated by molecular simulation, which demonstrated that the differing mechanical strengths arose from the varying bonding strengths between the ferric salts and AA groups. Moreover, the tough hydrogel of P(AA/AM) soaked in 0.06 M Fe(NO3)(3) displayed an equilibrium swelling ratio of only 1.14 g g(-1), which offers great promise in applications such as in cartilage and other tissues. This work gives a valuable molecular insight into the understanding and design of double crosslinking gels with high strength. |
| DOI | 10.1039/c8nj00920a |
| Funding Organization | National Nature Science Foundation of China ; State Key Laboratory of Solid Lubrication of Lanzhou Institute of Chemical Physics |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundation of China[51473007] ; State Key Laboratory of Solid Lubrication of Lanzhou Institute of Chemical Physics[LSL-1501] |
| WOS Research Area | Chemistry |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/27219 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Zhang, Huijuan; Hou, Xinjuan |
| Affiliation | 1.Beijing Technol & Business Univ, Sch Mat & Mech Engn, Beijing 100048, Peoples R China 2.Chinese Acad Sci, Inst Proc & Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Huijuan,Cheng, Yuran,Hou, Xinjuan,et al. Ionic effects on the mechanical and swelling properties of a poly(acrylic acid/acrylamide) double crosslinking hydrogel[J]. NEW JOURNAL OF CHEMISTRY,2018,42(11):9151-9158. |
| APA | Zhang, Huijuan,Cheng, Yuran,Hou, Xinjuan,Yang, Biao,&Guo, Fang.(2018).Ionic effects on the mechanical and swelling properties of a poly(acrylic acid/acrylamide) double crosslinking hydrogel.NEW JOURNAL OF CHEMISTRY,42(11),9151-9158. |
| MLA | Zhang, Huijuan,et al."Ionic effects on the mechanical and swelling properties of a poly(acrylic acid/acrylamide) double crosslinking hydrogel".NEW JOURNAL OF CHEMISTRY 42.11(2018):9151-9158. |
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