Preparation and characterization of confined atactic polystyrene in ordered silica/polystyrene composites
文献类型：期刊论文
| 作者 | Rong, JH; Yang, ZZ |
| 刊名 | MACROMOLECULAR MATERIALS AND ENGINEERING
 |
| 出版日期 | 2002-01-31 |
| 卷号 | 287期号:1页码:11-15 |
| 关键词 | Confinement Effect Glass Transition Molecular Weight Distribution/molar Mass Distribution Ordered Macroporous Polystyrene silica/Polystyrene Composite |
| ISSN号 | 1438-7492 |
| 英文摘要 | Communication: Ordered silica/polystyrene composites were prepared via radical polymerization in silica colloidal crystal templates, and ordered macroporous polymers were accordingly obtained after removing the silica templates. The confinement effect of the templates on the polymers in the composites was investigated. NMR results indicated that the polystyrenes formed both inside and outside the template were atactic. The polystyrene inside the template possessed a higher molecular weight and a narrower molecular weight distribution than the bulk one outside the template. The glass transition temperature of the confined polystyrene increased significantly with decreasing silica sphere size of the templates, and so did the contraction of polymer pores. The smaller the silica sphere size of the templates, the more remarkable is the confinement, which could be explained by entropic confinement of the polymer chains within a fixed inorganic meso-framework. |
| 语种 | 英语 |
| WOS记录号 | WOS:000173912300002 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79599]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, ZZ |
| 作者单位 | Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Rong, JH,Yang, ZZ. Preparation and characterization of confined atactic polystyrene in ordered silica/polystyrene composites[J]. MACROMOLECULAR MATERIALS AND ENGINEERING,2002,287(1):11-15. |
| APA | Rong, JH,&Yang, ZZ.(2002).Preparation and characterization of confined atactic polystyrene in ordered silica/polystyrene composites.MACROMOLECULAR MATERIALS AND ENGINEERING,287(1),11-15. |
| MLA | Rong, JH,et al."Preparation and characterization of confined atactic polystyrene in ordered silica/polystyrene composites".MACROMOLECULAR MATERIALS AND ENGINEERING 287.1(2002):11-15. |
入库方式： OAI收割
来源：化学研究所
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