Glass transition accelerates the spreading of polar solvents on a soluble polymer
文献类型：期刊论文
| 作者 | Dupas, Julien2; Verneuil, Emilie2; Van Landeghem, Maxime2; Bresson, Bruno2; Forny, Laurent1; Ramaioli, Marco1; Lequeux, Francois2; Talini, Laurence2 |
| 刊名 | Physical review letters
 |
| 出版日期 | 2014-05-09 |
| 卷号 | 112期号:18页码:188302 |
| ISSN号 | 1079-7114 |
| DOI | 10.1103/PhysRevLett.112.188302 |
| 文献子类 | Article |
| 英文摘要 | We study the wetting of polymer layers by polar solvents. As previously observed, when a droplet of solvent spreads, both its contact angle and velocity decrease with time as a result of solvent transfers from the droplet to the substrate. We show that, when the polymer is initially glassy, the angle decreases steeply for a given value of the velocity, Ug. We demonstrate that those variations result from a plasticization, i.e., a glass transition, undergone by the polymer layer during spreading, owing to the increase of its solvent content. By analyzing previous predictions on the wetting of rigid and soft viscoelastic substrates, we relate Ug to the viscosity of the polymer gel close to the glass transition. Finally, we derive an analytical prediction for Ug based on existing predictions for the water transfer from the droplet to the substrate. Using polar solvents of different natures, we show that the experimental data compare well to the predicted expression for Ug. |
| 语种 | 英语 |
| 源URL | [http://119.78.100.183/handle/2S10ELR8/266685]  |
| 专题 | 中国科学院上海药物研究所 |
| 作者单位 | 1.Nestle Research Center, Route du Jorat 57, 1000 Lausanne 26, Switzerland 2.CNRS/UPMC/ESPCI ParisTech-PSL Research University, UMR 7615, Laboratoire SIMM, 10 Rue Vauquelin, 75231 Paris, France; |
| 推荐引用方式 GB/T 7714 | Dupas, Julien,Verneuil, Emilie,Van Landeghem, Maxime,et al. Glass transition accelerates the spreading of polar solvents on a soluble polymer[J]. Physical review letters,2014,112(18):188302. |
| APA | Dupas, Julien.,Verneuil, Emilie.,Van Landeghem, Maxime.,Bresson, Bruno.,Forny, Laurent.,...&Talini, Laurence.(2014).Glass transition accelerates the spreading of polar solvents on a soluble polymer.Physical review letters,112(18),188302. |
| MLA | Dupas, Julien,et al."Glass transition accelerates the spreading of polar solvents on a soluble polymer".Physical review letters 112.18(2014):188302. |
入库方式： OAI收割
来源：上海药物研究所
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