Efficient preparation of isotactic polypropylene/montmorillonite nanocomposites by in situ polymerization technique via a combined use of functional surfactant and metallocene catalysis
文献类型：期刊论文
| 作者 | Yang, Kefang; Huang, Yingjuan; Dong, Jin-Yong |
| 刊名 | POLYMER
 |
| 出版日期 | 2007-10-05 |
| 卷号 | 48期号:21页码:6254-6261 |
| 关键词 | I-pp/mmt Nanocomposite In Situ Polymerization Metallocene Catalysis |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2007.08.046 |
| 英文摘要 | In order to promote efficiency of the preparation of isotactic polypropylene (i-PP)/montmorillonite (MMT) nanocomposites by in situ polymerization technique, a strategy was laid out to enhance both the intercalative selectivity and the catalyst activity of the in situ polymerization by a combined use of a functional surfactant for MMT modification and a metallocene catalyst system for isospecific propylene polymerization. Thus. (2-hydroxylethyl) hexadecyl diethylammonium iodine was involved in the ion-exchanged organic modification of MMT, leading to an implantation of catalyst-anchoring reactive sites (hydroxyl, OH) in the interlayer galleries of MMT (OMMT). By treating the OH-1-intercalated OMMT successively with excessive methylaluminoxane (MAO) and rac-Me2Si(2-Me-4-Ph-Ind)(2)ZrCl2, the metallocene catalyst typical for i-PP polymerization was stabilized inside the interlayer galleries with a catalytically benign environment. The MMT-borne catalyst, upon further activation by MAO. released fairly high activities for propylene polymerization. The effective intercalative polymerization ensured an efficient preparation of i-PP/MMT nanocomposite. A series of i-PP/MMT nanocomposites containing completely disordered MMT at a loading range of 1.0-6.7 wt% (TGA measurement residue at 600 degrees C were obtained in high yields. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000250492000010 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61239]  |
| 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, Joint Lab Polymer Sci & Mat, CAS Key Lab Engn Plast, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Kefang,Huang, Yingjuan,Dong, Jin-Yong. Efficient preparation of isotactic polypropylene/montmorillonite nanocomposites by in situ polymerization technique via a combined use of functional surfactant and metallocene catalysis[J]. POLYMER,2007,48(21):6254-6261. |
| APA | Yang, Kefang,Huang, Yingjuan,&Dong, Jin-Yong.(2007).Efficient preparation of isotactic polypropylene/montmorillonite nanocomposites by in situ polymerization technique via a combined use of functional surfactant and metallocene catalysis.POLYMER,48(21),6254-6261. |
| MLA | Yang, Kefang,et al."Efficient preparation of isotactic polypropylene/montmorillonite nanocomposites by in situ polymerization technique via a combined use of functional surfactant and metallocene catalysis".POLYMER 48.21(2007):6254-6261. |
入库方式： OAI收割
来源：化学研究所
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