Interfacial effect on confined crystallization of poly(ethylene oxide)/silica composites
文献类型：期刊论文
| 作者 | Zhao, Weiwei1; Su, Yunlan1; Gao, Xia1; Xu, Jianjun2; Wang, Dujin1 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 54期号:3页码:414-423 |
| 关键词 | adsorption crystallization confined crystallization interfaces interfacial effect nanocomposites nanoparticles poly(ethylene oxide) Stober silica |
| 英文摘要 | The impact of nanoconfinement introduced by nanoparticles on polymer crystallization has attracted extensive attention because it plays an important role in the ultimate properties of polymer nanocomposites. In this study, interfacial and spatial confinement effects of silica (SiO2) nanoparticles on the crystallization behaviors of poly(ethylene oxide) (PEO)/SiO2 composites were systematically investigated by changing the size and concentration of SiO2 in PEO matrix. The composites with high silica loadings exhibit two crystallization peaks of PEO as determined by differential scanning calorimetry. The first peak at 7-43 degrees C is related to the bulk PEO, while the second peak at -20 to -30 degrees C is attributed to the restricted PEO segments. Three-layer (amorphous, interfacial, and bulk) model is proposed to interpret the confined crystallization of PEO/SiO2 composites, which is supported by the results of thermogravimetric analysis and solid-state H-1 nuclear magnetic resonance. In amorphous layer, most PEO segments are directly adsorbed on SiO2 surface via hydrogen bonding. The interfacial PEO layer, which is nonuniform, is composed of crystallizable loops and tails extending from amorphous layer. (c) 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 414-423 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-01-19 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/29423]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China 2.DSM Resolve, NL-6160 MD Gleen, Netherlands |
| 推荐引用方式 GB/T 7714 | Zhao, Weiwei,Su, Yunlan,Gao, Xia,et al. Interfacial effect on confined crystallization of poly(ethylene oxide)/silica composites[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2016,54(3):414-423. |
| APA | Zhao, Weiwei,Su, Yunlan,Gao, Xia,Xu, Jianjun,&Wang, Dujin.(2016).Interfacial effect on confined crystallization of poly(ethylene oxide)/silica composites.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,54(3),414-423. |
| MLA | Zhao, Weiwei,et al."Interfacial effect on confined crystallization of poly(ethylene oxide)/silica composites".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 54.3(2016):414-423. |
入库方式： OAI收割
来源：化学研究所
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