An in situ matrix functionalization approach to structure stability enhancement in polyethylene/montmorillonite nanocomposites prepared by intercalative polymerization
文献类型：期刊论文
| 作者 | Huang, Yingjuan; Yang, Kefang; Dong, Jin-Yong |
| 刊名 | POLYMER
 |
| 出版日期 | 2007-06-29 |
| 卷号 | 48期号:14页码:4005-4014 |
| 关键词 | Polyethylene/montmorillonite Nanocomposite Matrix Functionalization Structure Stability |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2007.05.037 |
| 英文摘要 | This paper discusses a strategy of enhancing the structure stability of polyethylene/montmorillonite (PE/MMT) nanocomposites prepared by intercalative polymerization technique. The chemistry centers on an in situ, controlled PE matrix functionalization that is made possible by engaging a reactive comonomer in the intercalative polymerization process to intentionally anchor in the formed PE matrix ready-to-function-alize reactive groups. Thus, ethylene polymerization was conducted in the presence of p-methylstyrene (p-MS) using an OMMT (organically modified MMT)-intercalated metallocene catalyst (Et[lnd](2)ZrCl2 in combination with MAO), resulting in p-MS-containing PE/OMMT nanocomposites. Subsequent functionalization of the PE matrix then facilely and selectively occurred on the benzyl group in the p-MS unit, including a free radical maleation reaction and a butyllithium-initiated metallation reaction which was followed by an anionic graft-from polymerization of methyl methacrylate (MMA), under very mild reaction conditions. The in situ-incorporated functional groups, including the pendant maleic anhydride groups and the polar poly(methyl methacrylate) (PMMA) side chains, significantly improved miscibility between the PE matrix and laminated silicate layers of MMT, leading to effective stabilization of the nanocomposite structure against processing. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000247855300012 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62349]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Dong, Jin-Yong |
| 作者单位 | Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Yingjuan,Yang, Kefang,Dong, Jin-Yong. An in situ matrix functionalization approach to structure stability enhancement in polyethylene/montmorillonite nanocomposites prepared by intercalative polymerization[J]. POLYMER,2007,48(14):4005-4014. |
| APA | Huang, Yingjuan,Yang, Kefang,&Dong, Jin-Yong.(2007).An in situ matrix functionalization approach to structure stability enhancement in polyethylene/montmorillonite nanocomposites prepared by intercalative polymerization.POLYMER,48(14),4005-4014. |
| MLA | Huang, Yingjuan,et al."An in situ matrix functionalization approach to structure stability enhancement in polyethylene/montmorillonite nanocomposites prepared by intercalative polymerization".POLYMER 48.14(2007):4005-4014. |
入库方式： OAI收割
来源：化学研究所
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