Folding and birefringence behavior of poly(vinyl alcohol) hydrogel film induced by freezing and thawing
文献类型：期刊论文
| 作者 | Li, Xiaofeng1,2; Zhang, Liang1; Guo, Xinglin1; Zhu, Caizhen1; Yu, Zhong-Zhen2; Zhao, Ning1; Xu, Jian1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:91页码:49861-49865 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c4ra06155a |
| 英文摘要 | Band-like folds with high aspect ratio and birefringence behavior were observed on an in situ formed thin poly(vinyl alcohol) (PVA) hydrogel film via freezing-thawing treatment of PVA aqueous solution coated on glass. The crystallites generated during the freezing of the PVA solution cross-linked the PVA to form the hydrogel film. The volume expansion of the hydrogel film due to the absorption of condensed water in thawing induced the formation of folds. These folds show interesting birefringence behavior. The morphology, crystallization and birefringence behavior of the folds were characterized by polarized optical microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. A plausible principle for the fold formation is also discussed. It has been found that the moderate interaction between the hydrogel film and the substrate and the existence of condensed water on the frozen hydrogel film play important roles in the appearance of the folds. |
| 语种 | 英语 |
| WOS记录号 | WOS:000343715000038 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52307]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Xinglin |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Coll Mat Sci & Engn, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaofeng,Zhang, Liang,Guo, Xinglin,et al. Folding and birefringence behavior of poly(vinyl alcohol) hydrogel film induced by freezing and thawing[J]. RSC ADVANCES,2014,4(91):49861-49865. |
| APA | Li, Xiaofeng.,Zhang, Liang.,Guo, Xinglin.,Zhu, Caizhen.,Yu, Zhong-Zhen.,...&Xu, Jian.(2014).Folding and birefringence behavior of poly(vinyl alcohol) hydrogel film induced by freezing and thawing.RSC ADVANCES,4(91),49861-49865. |
| MLA | Li, Xiaofeng,et al."Folding and birefringence behavior of poly(vinyl alcohol) hydrogel film induced by freezing and thawing".RSC ADVANCES 4.91(2014):49861-49865. |
入库方式： OAI收割
来源：化学研究所
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