| Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone | |
| Department | 环境材料与生态化学研究发展中心 |
Wang WB(王文波) ; Wang J(王江); Kang YR(康玉茹); Wang AQ(王爱勤); 王爱勤 aqwang@licp.cas.cn
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| 2011 | |
| Source Publication | Composites Part B: Engineering
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| ISSN | 1359-8368 |
| Volume | 42Issue:4Pages:809-818 |
| Abstract | In this study, a series of pH- and saline-responsive composite hydrogels were prepared by a facile free radical graft copolymerization amongst hydroxyethyl cellulose (HEC), sodium acrylate (NaA) and medicinal stone (MS). Fourier transform infrared spectroscopy (FTIR) and Thermogravimetric/Differential thermal analysis (TG/DTA) confirmed NaA was grafted onto HEC and MS participate in polymerization, and presented the improved thermal stability. Field emission scanning electron micro-scope (FESEM), Energy dispersive spectroscopy (EDS), Elemental map (EM) and Transmission electron microscopy (TEM) analyses revealed a better distribution of MS in the HEC-g-PNaA matrix. Introducing 10 wt% MS greatly enhanced the swelling capacity by 400% (from 162 to 810 g/g), and also enhanced by 117% (from 162 to 352 g/g) even MS content reached 50 wt%. Also, the initial swelling rate was improved by incorporating MS, but decreased with enhancing the ion strength. The highly reversible On-Off switching pH and saline-responsive region of the hydrogel was clearly extended after forming composite. In addition, the intriguing ''overflowing'' swelling behaviour was observed in aqueous solution of dimethyl sulfoxide (DMSO). |
| Keyword | A. polymer-mA.rix Composites (Pmcs) D. Thermal Analysis |
| Subject Area | 功能高分子 |
| Funding Organization | 国家自然科学基金项目(20877077) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 功能复合材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/74 |
| Collection | 环境材料与生态化学研究发展中心 |
| Corresponding Author | 王爱勤 aqwang@licp.cas.cn |
| Recommended Citation GB/T 7714 | Wang WB,Wang J,Kang YR,et al. Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone[J]. Composites Part B: Engineering,2011,42(4):809-818. |
| APA | 王文波,王江,康玉茹,王爱勤,&王爱勤 aqwang@licp.cas.cn.(2011).Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone.Composites Part B: Engineering,42(4),809-818. |
| MLA | 王文波,et al."Synthesis, swelling and responsive properties of a new composite hydrogel based on hydroxyethyl cellulose and medicinal stone".Composites Part B: Engineering 42.4(2011):809-818. |
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| 2011424809818.pdf（1935KB） | 开放获取 | License | View Application Full Text | |||
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