Precise control of wettability from LCST tunable surface
文献类型：期刊论文
| 作者 | Zhao, Tianyi1,2; Nie, Fu-Qiang1; Jiang, Lei1 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2010 |
| 卷号 | 20期号:11页码:2176-2181 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/b918951c |
| 英文摘要 | In this study, we demonstrated precise control of wettability from a thermally-responsive surface and investigated the effects of chemical composition and surface roughness. By altering feeding manners of initiators during surface grafting process of poly(N-isopropylacrylamide-co-N-isopropylmethylacrylamide) [poly(NIPAAm-co-NIPMAM)], two thermally-responsive wettability transitions were achieved and could be precisely controlled. Only using initiators grafted on surface for grafting copolymerization, surface wettability exhibited a gradual even linear transition between hydrophilic and hydrophobic within 25-45 degrees C, whereas for initiators both grafted on surface and dissolved in solution, surface wettability sharply switched within 2 degrees C and their lower critical solution temperature (LCST) can be tuned with every step of about 3 degrees C in the range 32-45 degrees C by adjusting the ratios of comonomers. The underlying mechanism was proposed to clarify the relations between different thermally-responsive behaviors of surface wettability and surface chemical composition induced by different feeding manners of initiators. Furthermore, the introduction of surface roughness could not only enlarge the changing range of water contact angle (CA) by 60-100 degrees, but also affect the thermally-responsive behaviors of surface wettability from the gradual changing to sharp switching in partial region of temperature. |
| 语种 | 英语 |
| WOS记录号 | WOS:000275099900020 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70667]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Nie, Fu-Qiang |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, BNLMS, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Tianyi,Nie, Fu-Qiang,Jiang, Lei. Precise control of wettability from LCST tunable surface[J]. JOURNAL OF MATERIALS CHEMISTRY,2010,20(11):2176-2181. |
| APA | Zhao, Tianyi,Nie, Fu-Qiang,&Jiang, Lei.(2010).Precise control of wettability from LCST tunable surface.JOURNAL OF MATERIALS CHEMISTRY,20(11),2176-2181. |
| MLA | Zhao, Tianyi,et al."Precise control of wettability from LCST tunable surface".JOURNAL OF MATERIALS CHEMISTRY 20.11(2010):2176-2181. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。